GABELLI MONEY MARKET FUNDS
485APOS, 1999-11-29
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                            As filed with the Securities and Exchange Commission
                                                       on November 29, 1999

                        Securities Act File No. 33-48220
                    Investment Company Act File No. 811-6687

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-1A

            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                           Pre-Effective Amendment No.
                       Post-Effective Amendment No. 10      X

        REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
                               Amendment No. 12      X

                         THE GABELLI MONEY MARKET FUNDS
               (Exact Name of Registrant as Specified in Charter)

                 One Corporate Center, Rye, New York 10580-1434
                    (Address of Principal Executive Offices)

       Registrant's Telephone Number, including Area Code: 1-800-422-3554

                                 Bruce N. Alpert
                               Gabelli Funds, LLC
                              One Corporate Center
                            Rye, New York 10580-1434
                     (Name and Address of Agent for Service)

                                   Copies to:

James E. McKee, Esq.                                   Daniel Schloendorn, Esq.
The Gabelli Money Market Funds                         Willkie Farr & Gallagher
One Corporate Center                                   787 Seventh Avenue
Rye, New York 10580-1434                               New York, New York 10019-
                                                       6099

     It is proposed that this filing will become effective:


     immediately upon filing pursuant to paragraph  (b);or
     on ________ pursuant to paragraph (b);or
X    60 days after filing pursuant to paragraph (a)(1);or
     on ________ pursuant to paragraph (a)(1);or
     75 days after filing pursuant to paragraph (a)(2);or
     on ________ pursuant to paragraph (a)(2) of Rule 485

     If appropriate, check the following box:

     This  post-effective  amendment  designates  a  new  effective  date  for a
previously filed post-effective amendment.




<PAGE>




                   THE GABELLI U.S. TREASURY MONEY MARKET FUND

                                   PROSPECTUS
                                February 1, 2000


The  Securities  and Exchange  Commission  has not approved or  disapproved  the
shares  described in this  prospectus or determined  whether this  prospectus is
accurate or complete. Any representation to the contrary is a criminal offense.


                   The Gabelli U.S. Treasury Money Market Fund
                              One Corporate Center
                            Rye, New York 10580-1434
                                  1-800-GABELLI
                                [1-800-422-3554]
                               fax: 1-914-921-5118
                             http://www.gabelli.com
                            e-mail: [email protected]
                (Net Asset Value may be obtained daily by calling
                         (1-800-GABELLI after 6:00 P.M.)

                                Board of Trustees


Mario J. Gabelli, CFA                                  John J. Parker
Chairman and Chief Investment Officer                  Attorney-at-Law
Gabelli Asset Management Inc.                          McCarthy, Fingar, Dovovan
Drazen & Smith

Anthony J. Colavita                                    Karl Otto Pohl
Attorney-at-Law                                        Former President
Anthony J. Colavita, P.C.                              Deutsche Bundesbank

Vincent D. Enright                                     Anthonie C. van Ekris
Former Senior Vice President                           Managing Director
and Chief Financial Officer                            BALMAC International,Inc.
KeySpan Energy Corp.
                                    Officers
Mario J. Gabelli, CFA                                  Ronald S. Eaker
President                                              Vice President

Bruce N. Alpert                                        Judith A. Raneri
Vice President and                                     Vice President and
Treasurer                                              Portfolio Manager

James E. McKee                                         Henley L. Smith
Secretary                                              Vice President



<PAGE>


                                TABLE OF CONTENTS

                                                                           Page

INVESTMENT AND PERFORMANCE SUMMARY                                            2

INVESTMENT AND RISK INFORMATION...............................................4

MANAGEMENT OF THE FUND........................................................4

PURCHASE OF SHARES............................................................5

REDEMPTION OF SHARES..........................................................6

EXCHANGES OF SHARES...........................................................8

PRICING OF FUND SHARES........................................................9

DIVIDENDS AND DISTRIBUTIONS...................................................9

TAX INFORMATION...............................................................9

FINANCIAL HIGHLIGHTS.........................................................10


<PAGE>


                       INVESTMENT AND PERFORMANCE SUMMARY

Investment Objective:

     The Gabelli U.S.  Treasury Money Market Fund (the "Fund"),  the only series
of The  Gabelli  Money  Market  Funds,  seeks to  provide  high  current  income
consistent with the preservation of principal and liquidity.

Principal Investment Strategies:

     The Fund will invest  exclusively in U.S. Treasury  obligations,  including
U.S.  Treasury bills, U.S. Treasury notes, U.S. Treasury bonds and U.S. Treasury
strips, which have remaining maturities of 397 days or less.

Principal Risks:

     An investment in the Fund is subject to the risk that the Fund's yield will
decline due to falling interest rates. Other factors may affect the market price
and yield of the Fund's  securities,  including investor demand and domestic and
worldwide  economic  conditions.  An  investment  in the Fund is not  insured or
guaranteed by the Federal Deposit Insurance  Corporation or any other government
agency.  Although  the Fund seeks to preserve  the value of your  investment  at
$1.00 per share, it is possible to lose money by investing in the Fund. There is
no guarantee that the Fund can achieve its investment objective.

Who May Want to Invest:

     The  Fund may appeal to you if:

- -    you are a long-term investor
- -    you desire a fund with lower fund expenses  than the average U.S.  Treasury
     money market fund
- -    you seek stability of principal more than growth or high current income
- -    you seek income free from state and local taxes
- -    you intend to exchange into other Gabelli-sponsored mutual funds

You may not want to invest in the Fund if:

- -    you  are  a  short-term  investor,   since  the  Fund  may  impose  certain
     transaction charges
- -    you are aggressive in your investment approach or
- -    you desire a relatively high rate of return

Performance:

     The bar chart and table shown below  provide an  indication of the risks of
investing in the Fund by showing changes in the Fund's  performance from year to
year  (since  1992).   For  current  yield   information   on  the  Fund,   call
1-800-422-3554.  The  Fund's  yield  appears  in the Wall  Street  Journal  each
Thursday.

     As with all mutual funds,  the Fund's past performance does not predict how
the Fund will perform in the future.


<PAGE>


     Bar chart (graphic  omitted).  Edgar  representation of data points used in
printed graphic.

         Calendar Year                               Total Return

         1992                                        2.78%
         1993                                        3.84%
         1994                                        5.57%
         1996                                        5.13%
         1997                                        4.97%
         1998                                        4.35%
         1999                                        ____%

     During the period shown in the bar chart,  the highest return for a quarter
was 1.44% (quarter ended 12\31\97) and the lowest return for a quarter was 0.66%
(quarter ended 03\31\93).

Average Annual Total Returns
(for the periods ended        Past One       Past Five      Since October 1,
December 31, 1999)            Year           Years          1992 (a)
- ------------------            --------       --------       --------

The Gabelli U.S. Treasury
Money Market Fund

(a) Inception of Fund

Fees and Expenses of the Fund:

     The tables below describe the fees and expenses that you may pay if you buy
and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment):*
Redemption Fees (1)                                                   $5.00
Account Closeout Fee (1)                                              $5.00

Annual Fund Operating Expenses (expenses that are deducted from Fund assets):
Management Fees                                                       .30%
Other Expenses                                                        .10%

Total Annual Fund Operating Expenses (2)                              .40%


*    No sales load is imposed on purchases, exchanges or redemptions.

(1)  The Fund will charge your account $5.00 for each telephone request for bank
     wire redemption  under $5,000 or telephone  request for redemption by check
     you make. The Fund will charge a $5.00 account closeout fee when you redeem
     all shares in your account,  except for Fund exchanges and wire  transfers.
     See  "Redemption  of Shares." The charges will be paid to State Street Bank
     and Trust  Company  ("State  Street") and will reduce the  transfer  agency
     expenses otherwise payable by the Fund.

(2)  Gabelli  Funds LLC has  agreed to waive its  management  fee and  reimburse
     expenses  to the  extent  necessary  to  maintain  the  Fund's  total  fund
     operating  expenses at .30% of the Fund's  average daily net assets.  [This
     arrangement may be terminated at any time at the option of the Manager.]


<PAGE>


Example

     This  example is intended to help you compare the cost of  investing in the
Fund with the cost of investing in other mutual Funds.  The example assumes that
(1) you invest  $10,000 in the Fund for the time periods  shown,  (2) you redeem
your shares at the end of those  periods,  (3) your  investment  has a 5% return
each year and (4) the Fund's operating  expenses remain the same.  Although your
actual costs may be higher or lower, based on these assumptions your costs would
be:

1 Year*             3 Years*            5 Years*            10 Years*

  $41                 $128                $224                 $505

                         INVESTMENT AND RISK INFORMATION

     The  Fund's  investment   objective  is  to  provide  high  current  income
consistent  with  preservation  of  principal  and  liquidity.   The  investment
objective of the Fund is fundamental and may not be changed without  shareholder
approval.

     Under normal market conditions, the Fund invests at least 65% of its assets
in U.S.  Treasury  obligations,  including U.S.  Treasury bills,  U.S.  Treasury
notes,  U.S.  Treasury  bonds and U.S.  Treasury  strips.  The Fund  attempts to
maintain  a  constant  net asset  value of $1.00 per  share by  purchasing  only
securities  with  397  days or less  remaining  to  maturity  and  limiting  the
dollar-weighted  average  maturity  of its  portfolio  to 90  days.  There is no
guarantee  that the Fund will achieve its  investment  objective  since there is
uncertainty in every investment.

                             MANAGEMENT OF THE FUND

     The Manager.  Gabelli  Funds,  LLC, with principal  offices  located at One
Corporate Center, Rye, New York 10580-1434,  serves as investment manager to the
Fund.  The Manager  makes  investment  decisions  for the Fund and  continuously
reviews and administers the Fund's  investment  program under the supervision of
the Fund's Board of Trustees.  The Manager also manages  several other  open-end
and closed-end  investment companies in the Gabelli Family of Funds. The Manager
is a New York  limited  liability  company  organized  in 1999 as  successor  to
Gabelli Group Capital Partners, Inc. (formerly named Gabelli Funds, Inc.), a New
York corporation organized in 1980. The Manager is a wholly-owned  subsidiary of
Gabelli Asset  Management Inc.  ("GAMI"),  a publicly held company listed on the
New York Stock Exchange.

     As compensation for its services and the related expenses borne by the
Manager,  the Manager is entitled to receive a fee,  computed  daily and payable
monthly equal on an annual basis, to .30% of the Fund's average daily net assets
(the  "Management  Fee").  The Manager has agreed to waive  voluntarily all or a
portion of its Management Fee and/or to assume  voluntarily  certain expenses of
the Trust until  further  notice to the extent  necessary  to maintain the total
expense  ratio  of the  Fund at .30% of  average  daily  net  assets  (excluding
interest, taxes and extraordinary expenses). This has the effect of lowering the
overall expense ratio of the Fund and increasing yield to investors in the Fund.
There is no assurance  that these fees will be waived or that  expenses  will be
reimbursed  in the future.  For the fiscal year ended  September  30, 1999,  the
Manager  received fees after waivers at the effective rate of 0.30% of the value
of the Fund's average daily net assets.

                               PURCHASE OF SHARES

     You can purchase the Fund's  shares on any day the New York Stock  Exchange
("NYSE") is open for trading (a "Business Day"). You may purchase shares through
Gabelli & Company, Inc. (the "Distributor"),  directly from the Fund through the
Fund's transfer agent or through  organizations  that have special  arrangements
with the Fund ("Participating Organizations").

     By Mail or In  Person.  You may open an  account  by  mailing  a  completed
subscription order form with a check or money order payable to "The Gabelli U.S.
Treasury Money Market Fund" to:

          By Mail                                 By Personal Delivery

          The Gabelli Funds                       The Gabelli Funds
          c/o BFDS                                P.O. Box 8308
          66 Brooks Drive                         Boston, MA 02266-8308
          Braintree, MA 02184

     You  can  obtain  a  subscription  order  form  by  calling   1-800-GABELLI
(1-800-422-3554).  Checks  made  payable to a third  party and  endorsed  by the
depositor are not acceptable.  For additional  investments,  send a check to the
above  address with a note stating your exact name and account  number,  and the
name of the Fund.

     By Bank  Wire.  To open an  account  using  the  bank  wire  system,  first
telephone  the Fund at  1-800-422-3554  to  obtain a new  account  number.  Then
instruct a Federal Reserve System member bank to wire Funds to:

                       State Street Bank and Trust Company
                       ABA #011-0000-28 REF DDA #99046187
                 Re: The Gabelli U.S. Treasury Money Market Fund
                               Account #__________
                         Account of [Registered Owners]
                      225 Franklin Street, Boston, MA 02110

     If you are making an initial purchase,  you should also complete and mail a
subscription  order form to the  address  shown under "By Mail." Note that banks
may charge fees for wiring Funds,  although State Street will not charge you for
receiving  wire  transfers.  If your wire is received  by the Fund before  noon,
Eastern Standard Time, you will begin earning dividends on the day of receipt.

     Through  a  Participating  Organization.  You may  purchase  shares  from a
Participating  Organization.  The  Participating  Organization  will  transmit a
purchase  order  and  payment  to State  Street  on your  behalf.  Participating
Organizations  may send you  confirmations  of your  transactions  and  periodic
account statements showing your investments in the Fund.

     Minimum  Investments.  Your  minimum  initial  investment  must be at least
$10,000 ($3,000 for registered shareholders of other mutual funds managed by the
Manager or its  affiliates).  See "Retirement  Plans" and "Automatic  Investment
Plan" regarding minimum investment amounts applicable to such plans. There is no
minimum  for  subsequent  investments.   Participating  Organizations  may  have
different minimum investment requirements.

     Share  Price.  The Fund  sells its  shares at the "net  asset  value"  next
determined  after the Fund receives your completed  subscription  order form and
your payment in Federal Funds. See "Pricing of Fund Shares" for a description of
the calculation of net asset value.

     Retirement  Plans. The minimum initial  investments for all such retirement
plans is $1,000. There is no minimum for subsequent investments.  Investors with
IRA plans and  self-employed  investors may purchase  shares of the Fund through
tax-deductible  contributions  to their existing IRA account or their retirement
plans for  self-employed  persons,  known as Keogh or H.R. 10 plans. Fund shares
may also be a  suitable  investment  for other  types of  qualified  pension  or
profit-sharing   plans  which  are  employer   sponsored,   including   deferred
compensation  or salary  reduction  plans  known as  "401(k)  Plans"  which give
participants the right to defer portions of their compensation for investment on
a   tax-deferred   basis   until   distributions   are  made  from  the   plans.

     General. State Street will not issue share certificates.  The Fund reserves
the  right  to (i)  reject  any  purchase  order  if,  in the  opinion  of  Fund
management,  it is in the Fund's  best  interest  to do so and (ii)  suspend the
offering of shares for any period of time.

                              REDEMPTION OF SHARES

     You can redeem  shares on any Business Day. The Fund may  temporarily  stop
redeeming  its  shares  when  the  NYSE is  closed  or  trading  on the  NYSE is
restricted,  when an  emergency  exists and the Fund  cannot  sell its shares or
accurately  determine the value of its assets, or if the Securities and Exchange
Commission ("SEC") orders the Fund to suspend redemptions.

     If you request  redemption  proceeds by check,  the Fund will normally mail
the check to you within  seven days.  You will be charged  $5.00 when you redeem
all shares in your account, unless you redeem by wire in excess of $5,000 or you
exchange shares out of the Fund to another Gabelli-sponsored fund.

     You may redeem  shares  through  the  Distributor,  directly  from the Fund
through its transfer agent, or through Participating Organizations.

     By Letter.  You may mail a letter  requesting  redemption of shares to: The
Gabelli Funds, P.O. Box 8308,  Boston,  MA 02266-8308.  Your letter should state
the name of the Fund,  the dollar  amount or number of shares you are  redeeming
and your  account  number.  You must sign the letter in exactly the same way the
account is  registered  and if there is more than one owner of shares,  all must
sign. A signature  guarantee is required for each  signature on your  redemption
letter. You can obtain a signature guarantee from financial institutions such as
commercial banks,  brokers,  dealers and savings  associations.  A notary public
cannot provide a signature guarantee.

     By Telephone.  You may redeem your shares in a direct registered account by
calling either  1-800-422-3554 or 1-800-872-5365  (617-328-5000 from outside the
United States), subject to a $25,000 limitation.  You may not redeem shares held
through  an IRA by  telephone.  If  State  Street  properly  acts  on  telephone
instructions and follows reasonable  procedures to protect against  unauthorized
transactions,  neither  State  Street nor the Fund will be  responsible  for any
losses due to telephone transactions.  You may be responsible for any fraudulent
telephone  order in your  account  as long as  State  Street  or the Fund  takes
reasonable  measures  to verify  the  order.  You may  request  that  redemption
proceeds be mailed to you by check (if your address has not changed in the prior
30 days),  forwarded  to you by bank wire or  invested  in another  mutual  Fund
advised by the Manager (see "Exchanges of Shares" below).

     1.   Telephone  Redemption By Check.  The Fund will make checks  payable to
          the name in which the account is registered and normally will mail the
          check to the address of record  within seven days and charge you $5.00
          for this service.

     2.   Telephone  Redemption By Wire. The Fund accepts telephone requests for
          wire  redemption in amounts of at least  $1,000.  The Fund will send a
          wire to either a bank designated on your subscription order form or on
          a subsequent letter with a guaranteed signature.  The Fund will deduct
          a wire fee (currently $5.00) from your account if you redeem less than
          $5,000.  The proceeds are normally  wired on the next Business Day. If
          you  wish  your  bank to  receive  a wire on the  day  you  place  the
          telephone  request,  you must call the Fund by noon  (New York  time).


     Through a  Participating  Organization.  You may  redeem  shares  through a
Participating  Organization  which  will  transmit a  redemption  order to State
Street on your  behalf.  A  redemption  request  received  from a  Participating
Organization will be effected at the net asset value next determined after State
Street receives the request.

     Through the Automatic Cash Withdrawal  Plan. You may  automatically  redeem
shares on a monthly,  quarterly or annual basis.  Please call the Distributor at
1-800-422-3554 for more information.

     By Check  Draft.  You may write checks on your account with the Fund in the
amount  of $500  or  more.  Simply  request  the  checkwriting  service  on your
subscription  order  form and the Fund will send you  checks.  The Fund will not
honor a check  if (1) you  purchased  shares  by  check  and the  check  has not
cleared, (2) the check would close out your account, (3) the amount of the check
is higher than funds  available  in your  account,  (4) the check is written for
less than $500, or (5) the check  contains an  irregularity  in the signature or
otherwise.  In the case of (3),  (4) and (5),  State  Street  will  charge  your
account a $15 fee. The Trust may change or terminate the  check-writing  service
or impose additional charges at any time.

     Involuntary  Redemption.  The Fund may redeem  all  shares in your  account
(other than an IRA  account)  if their  value falls below  $1,000 as a result of
redemptions  (but not as a result of a decline in net asset value).  You will be
notified in writing and allowed 30 days to increase  the value of your shares to
at least $1,000.

     Redemption Proceeds.  If you request redemption proceeds by check, the Fund
will  normally  mail the check to you within  seven days after it receives  your
redemption  request.  If you  purchased  your Fund shares by check,  you may not
redeem  shares until the check  clears,  which may take up to 15 days  following
purchase.

                               EXCHANGES OF SHARES

     You may  exchange  shares  of the Fund you hold  for  shares  of any  other
open-end Fund managed by the Manager or its  affiliates  based on their relative
asset values. The Fund also offers an automatic monthly exchange  privilege.  To
obtain a list of the Funds  whose  shares you may  acquire  through  exchange or
details  on  the  automatic  monthly  exchange   privilege  call   1-800-GABELLI
(1-800-422-3554).

     In effecting an exchange:

     -    you must meet the  minimum  purchase  requirements  for the Fund whose
          shares you purchase through exchange.

     -    if you are exchanging  into shares of a Fund with a sales charge,  you
          must pay the sales charge at the time of exchange.

     -    you may realize a taxable gain or loss.

     -    you  should  read the  prospectus  of the Fund  whose  shares  you are
          purchasing  (call   1-800-GABELLI   (1-800-422-3554)   to  obtain  the
          prospectus).

     You may exchange  shares by telephone,  by mail or through a  Participating
Organization.

     Exchanges by Telephone.  You may give exchange instructions by telephone by
calling 1-800-GABELLI (1-800-422-3554). You may not exchange shares by telephone
if you hold share certificates.

     Exchanges by Mail.  You may send a written  request for  exchanges  to: The
Gabelli  Funds,  P.O. Box 8308,  Boston,  MA 02266-8308.  State your name,  your
account number,  the dollar value or number of shares you wish to exchange,  the
name and class of the Fund whose  shares you wish to  exchange,  and the name of
the Fund whose shares you wish to acquire.

     Exchanges through the Internet. You may also give exchange instructions via
the Internet at www.gabelli.com.

     We may modify or terminate the exchange  privilege at any time. You will be
given notice 60 days prior to any material change in the exchange privilege.

                             PRICING OF FUND SHARES

     The Fund's net asset value per share is  calculated  on each  Business Day.
The NYSE is  currently  scheduled  to be closed on New Year's  Day,  Dr.  Martin
Luther King, Jr. Day, Presidents' Day, Good Friday,  Memorial Day,  Independence
Day, Labor Day,  Thanksgiving  Day and Christmas Day and on the preceding Friday
or subsequent Monday when a holiday falls on a Saturday or Sunday, respectively.

     The Fund's net asset value is  determined at noon (New York time) and as of
the close of regular trading on the NYSE, normally 4:00 p.m., New York time, and
is computed by dividing  the value of the Fund's net assets  (i.e.  the value of
its securities and other assets less its liabilities, including expenses payable
or accrued but  excluding  capital stock and surplus) by the total number of its
shares  outstanding  at the time the  determination  is made.  The Fund uses the
amortized cost method of valuing its portfolio securities to maintain a constant
net asset  value of $1.00 per share.  Under this method of  valuation,  the Fund
values its portfolio securities at their cost at the time of purchase and not at
market value, thus minimizing fluctuations in value due to interest rate changes
or market conditions.

                           DIVIDENDS AND DISTRIBUTIONS

     Dividends of net  investment  income and  short-term  capital gains will be
declared  daily and paid monthly,  and  distributions  of net long-term  capital
gains, if any, will be paid annually. They will be automatically  reinvested for
your  account at net asset  value in  additional  shares of the Fund  unless you
instruct the Fund to pay all dividends and  distributions  in cash. If you elect
cash distributions, notify the Fund at The Gabelli Funds, P.O. Box 8308, Boston,
MA 02266-8308 or by telephone at 1-800-422-3554.

     If you  purchase  shares  prior to 12:00  noon  (New York  time),  you will
receive the full dividend for that day. If you redeem shares prior to 12:00 noon
(New York time) on any Business Day, you will not earn that day's dividend,  but
the  redemption  proceeds are available  that day. If you redeem shares  between
noon and 4:00 p.m. (New York time),  you will earn that day's dividend,  but the
redemption proceeds are not available until the next Business Day.

                                 TAX INFORMATION

     The Fund  expects  that its  distributions  will  consist  primarily of net
investment  income and capital  gains,  which may be taxable at different  rates
depending on the length of time the Fund holds its assets.  Dividends out of net
investment  income and  distributions of realized  short-term  capital gains are
taxable to you as ordinary income.  Distributions of net long-term capital gains
are taxable to you at long-term  capital gain rates.  The Fund's  distributions,
whether you receive them in cash or reinvest  them in  additional  shares of the
Fund, may be subject to federal income tax. An exchange of the Fund's shares for
shares of another  fund will be treated for tax purposes as a sale of the Fund's
shares,  and any  gain  you  realize  on such a  transaction  generally  will be
taxable. Foreign shareholders generally will be subject to a federal withholding
tax.

     This summary of tax consequences is intended for general  information only.
You  should  consult  a tax  adviser  concerning  the tax  consequences  of your
investment in the Fund.


<PAGE>


                              FINANCIAL HIGHLIGHTS

     The  financial  highlights  table is  intended to help you  understand  the
Fund's  financial  performance  for the past five fiscal years of the Fund.  The
total returns in the table represent the rate that an investor would have earned
on an  investment in the Fund's  shares.  This  information  has been audited by
Ernst & Young LLP,  independent  auditors,  whose report,  along with the Fund's
financial  statements and related notes are included in the annual report, which
is  available  upon  request.  Per share  amounts  for a Fund share  outstanding
throughout each year ended September 30,

<TABLE>
<CAPTION>
<S>                                          <C>         <C>          <C>            <C>       <C>

                                            1999         1998        1997(d)       1996         1995
                                            ----         ----        ----          ----         ----
Operating performance:
Net asset value, beginning of year....      $1.00        $1.00        $1.00        $1.00        $1.00
                                            -----        -----        -----        -----        -----
Net investment income (a).............     0.0422       0.0496       0.0485       0.0492       0.0528
Net realized gain on investments......     0.0005       0.0005       0.0013       0.0006       0.0002
                                           ------       ------       ------       ------       ------
Total from investment operations......     0.0427       0.0501       0.0498       0.0498       0.0530
                                           ------       ------       ------       ------       ------

Distributions to shareholders:
Net investment income.................    (0.0422)     (0.0496)     (0.0485)     (0.0492)     (0.0528)
Net realized gain on investments..        (0.0005)     (0.0005)     (0.0013)     (0.0006)     (0.0002)
                                           ------      --------     --------     --------     --------
Total distributions...................    (0.0427)     (0.0501)     (0.0498)     (0.0498)     (0.0530)
                                           ------      --------     --------     --------     --------

Net asset value, end of year..........      $1.00        $1.00        $1.00        $1.00        $1.00
                                            =====        =====        =====        =====        =====
Total return (b)......................      4.4%         5.1%         5.1%         5.1%         5.4%
                                            ====         ====         ====         ====         ====

Ratios to average net assets and
supplemental data:
Net assets, end of year (in 000s)...      $480,100     $314,394     $203,542     $216,038     $218,036
Ratio of net investment income
   to average net assets..............      4.19%        4.91%        4.85%        4.92%        5.30%
Ratio of operating expenses
   to average net assets (c)..........      0.30%        0.30%        0.30%        0.30%        0.27%

- ------------------
(a)  Net  investment  income  before  fees  waived by the Manager for the fiscal
     years ended September 30, 1999, 1998, 1997, 1996 and 1995
     was $0.0412, $0.0475, $0.0469,  $0.0477 and $0.0516, respectively.
(b)  Total return  represents  aggregate  total return of a hypothetical  $1,000
     investment  at the  beginning  of the  period  and  sold  at the end of the
     period, including reinvestment of dividends.
(c)  Operating  expense  ratio  before fees waived by the Manager for the fiscal
     years ended  September  30,  1999,  1998,  1997,  1996 and 1995 were 0.40%,
     0.46%, 0.45%, 0.45% and 0.39%, respectively.
(d)  Gabelli Funds, LLC (formerly known as Gabelli Funds,  Inc.) became the sole
     manager of the Fund on April 15, 1997.

</TABLE>


<PAGE>


                   THE GABELLI U.S. TREASURY MONEY MARKET FUND


For More Information:

     For more information about the Fund, the following documents are
available free upon request:

Annual/Semi-annual Reports:

     The Fund's  semi-annual and audited annual reports to shareholders  contain
detailed information on the Fund's investments.

Statement of Additional Information (SAI):

     The SAI provides more detailed  information  about the Fund,  including its
operations and investment  policies.  It is  incorporated  by reference,  and is
legally considered a part of this prospectus.

     You can get free copies of these documents and  prospectuses of other Funds
in the Gabelli Family,  or request other  information and discuss your questions
about the Fund by contacting:

                   The Gabelli U.S. Treasury Money Market Fund
                              One Corporate Center
                                  Rye, NY 10580
                    Telephone 1-800-GABELLI (1-800-422-3554)
                                 www.gabelli.com

     You can review the Fund's  reports and SAI at the Public  Reference Room of
the Securities and Exchange Commission. You can get text-only copies:

     -    For a fee, by writing the Public Reference  Section of the Commission,
          Washington, D.C. 20549-6009 or calling 1-800-SEC-0330.

     -    Free from the Commission's Website at http://www.sec.gov.


Investment Company Act File Number: 811-6687.




<PAGE>


                   The Gabelli U.S. Treasury Money Market Fund

                       Statement of Additional Information
                                February 1, 2000

     This  Statement of Additional  Information  ("SAI")  relates to The Gabelli
U.S.  Treasury Money Market Fund (the "Fund"),  which is the first series of The
Gabelli Money Market Funds, a Delaware business trust (the "Trust"). This SAI is
not a prospectus  and should be read in conjunction  with the Fund's  Prospectus
dated  February  1,  2000,  a copy of which may be  obtained  without  charge by
contacting the Fund at the address, telephone number or Internet website printed
below.  This  SAI  is  incorporated  by  reference  in  its  entirety  into  the
Prospectus.

                              One Corporate Center
                            Rye, New York 10580-1434
                    Telephone 1-800-GABELLI (1-800-422-3554)
                             http://www.gabelli.com

                                TABLE OF CONTENTS

General Information...........................................................2
Investment Strategies and Risks...............................................2
         U.S. Treasury Obligations............................................2
         When-Issued and Delayed Delivery Securities..........................3
         Illiquid Securities..................................................3
         Repurchase Agreements................................................4
Investment Restrictions.......................................................5
Trustees and Officers.........................................................6
Control Persons and Principal Shareholders....................................9
The Manager .................................................................10
The Sub-Administrator........................................................12
The Distributor..............................................................13
Counsel  ....................................................................14
Independent Auditors.........................................................14
Custodian, Transfer Agent, and Dividend Disbursing Agent.....................14
Purchase of Shares...........................................................14
Retirement Plans.............................................................14
Redemption of Shares.........................................................15
Net Asset Value..............................................................15
Portfolio Transactions and Brokerage.........................................17
Taxation.....................................................................17
Investment Performance Information...........................................18
Description of the Fund's Shares.............................................19
Financial Statements.........................................................21




<PAGE>


                               GENERAL INFORMATION

         The Fund is a  diversified,  open-end,  management  investment  company
which commenced investment operations on October 1, 1992. The Fund was organized
on May 21, 1992 as an unincorporated Delaware business trust.

                         INVESTMENT STRATEGIES AND RISKS

         The Fund's  Prospectus  discusses the investment  objective of the Fund
and the  principal  strategies  to be employed to achieve that  objective.  This
section contains supplemental information concerning certain types of securities
and other instruments in which the Fund may invest,  additional  strategies that
the Fund may utilize and certain  risks  associated  with such  investments  and
strategies.  Although the Fund reserves the right to use repurchase  agreements,
the Fund will not  engage in such  activity  until  further  notice.  The Fund's
investment  objective is fundamental  and may be changed only by the affirmative
vote of at least a  majority  of the Fund's  outstanding  voting  securities  as
defined in the  Investment  Company Act of 1940, as amended (the "1940 Act").  A
majority of the Fund's  outstanding  securities  is defined as the lesser of (i)
67% of the Fund's shares  represented at a meeting of  shareholders at which the
holders  of 50% or more of the Fund's  outstanding  shares  are  represented  in
person or by proxy or (ii) more than 50% of the Fund's outstanding  shares.

U.S. Treasury Obligations

         As set forth in the  Prospectus,  under normal market  conditions,  the
Fund will invest at least 65% of its assets      in the following  types of U.S.
Treasury obligations:

     U.S. Treasury Securities. The Fund will invest in U.S. Treasury securities,
including bills,  notes and bonds.  These instruments are direct  obligations of
the U.S.  Government  and, as such, are backed by the "full faith and credit" of
the United States. They differ primarily in their interest rates and the lengths
of their maturities.

     Components  of U.S.  Treasury  Securities.  The  Fund may  also  invest  in
component  parts of U.S.  Treasury  notes or bonds,  namely,  either  the corpus
(principal) of such Treasury obligations or one or more of the interest payments
scheduled to be paid on such obligations. Component parts of U.S. Treasury notes
or bonds are created  through the U.S.  Treasury  Department's  STRIPS  program.
These  obligations may take the form of (i) Treasury  obligations from which the
interest  coupons  have  been  stripped,  (ii)  the  interest  coupons  that are
stripped,  or (iii)  book-entries at a Federal Reserve member bank  representing
ownership of Treasury obligation components,  and may be acquired by the Fund in
the form of  custodial  receipts  that  evidence  ownership  of future  interest
payments,  principal  payments or both on certain U.S.  Treasury notes or bonds.
The  underlying  U.S.  Treasury notes and bonds are held in custody by a bank on
behalf of the owners.  These  custodial  receipts  are  commonly  referred to as
Treasury strips.

When-Issued and Delayed Delivery Securities

     The Fund may, in the ordinary course of business,  purchase securities on a
"when-issued" or "delayed  delivery" basis (i.e.,  delivery and payment may take
place a month or more after the date of the transaction). The Trust's investment
adviser  ("Manager"),   however,  does  not  currently  intend  to  employ  such
investments.  Securities so purchased are subject to market fluctuation,  and no
interest would accrue to the Fund during this period.  While the Fund would only
purchase  securities on a  "when-issued"  or "delayed  delivery"  basis with the
intention of actually acquiring the securities, the Fund may sell the securities
before the settlement date if it is deemed advisable. At the time the Fund makes
the commitment to purchase  securities on a "when-issued" or "delayed  delivery"
basis,  the Fund will record the  transaction  and, in determining its net asset
value,  will reflect the value of the security daily. At the time of delivery of
the securities,  the value may be more or less than the purchase price. The Fund
would also establish a segregated account with the Trust's Custodian in which it
would continuously  maintain cash and U.S. Government  securities equal in value
to commitments for such "when-issued" or "delayed delivery" securities;  subject
to this  requirement,  the Fund may purchase  securities  on such basis  without
limit.

Illiquid Securities

     The Fund may  invest up to 10% of its net assets in  repurchase  agreements
which have a maturity of longer than seven days or in other illiquid securities,
including  securities  that are  illiquid  by virtue of the absence of a readily
available market or subject to legal or contractual  restrictions on resale. The
Manager,  however,  does  not  currently  intend  to  employ  such  investments.
Historically,   illiquid   securities  have  included   securities   subject  to
contractual  or  legal  restrictions  on  resale  because  they  have  not  been
registered under the Securities Act of 1933, as amended (the "Securities  Act"),
securities which are otherwise not readily marketable and repurchase  agreements
having a maturity  of longer  than seven  days.  Securities  which have not been
registered  under the  Securities  Act are referred to as private  placements or
restricted  securities  and are  purchased  directly  from the  issuer or in the
secondary  market.  Mutual funds do not typically  hold a significant  amount of
these  restricted  or other  illiquid  securities  because of the  potential for
delays on resale and uncertainty in valuation. Limitations on resale may have an
adverse effect on the  marketability  of portfolio  securities and a mutual fund
might be unable to dispose of restricted or other illiquid  securities  promptly
or at  reasonable  prices and might  thereby  experience  difficulty  satisfying
redemptions  within seven days.  A mutual fund might also have to register  such
restricted  securities  in order to  dispose  of them  resulting  in  additional
expense and delay. Adverse market conditions could impede such a public offering
of securities.

     In recent years,  however, a large  institutional  market has developed for
certain  securities  that are not registered  under the Securities Act including
repurchase   agreements,   commercial  paper,   foreign  securities,   municipal
securities and corporate bonds and notes.  Institutional  investors depend on an
efficient institutional market in which the unregistered security can be readily
resold or on an issuer's ability to honor a demand for repayment.  The fact that
there are  contractual or legal  restrictions on resale to the general public or
to  certain  institutions  may  not be  indicative  of  the  liquidity  of  such
investments.

     Rule 144A  under the  Securities  Act  allows  for a broader  institutional
trading market for securities  otherwise subject to restriction on resale to the
general  public.  Rule 144A  establishes a "safe  harbor" from the  registration
requirements  of the  Securities  Act  for  resales  of  certain  securities  to
qualified  institutional buyers. The Trust's Manager anticipates that the market
for certain  restricted  securities such as institutional  commercial paper will
expand  further  as a  result  of this new  regulation  and the  development  of
automated  systems for the trading,  clearance and  settlement  of  unregistered
securities of domestic and foreign issuers,  such as the PORTAL System sponsored
by the National Association of Securities Dealers, Inc. ("NASD").

     Restricted  securities  eligible for resale pursuant to Rule 144A under the
Securities  Act are not  deemed  to be  illiquid.  The  Fund  would  treat  such
securities as illiquid until such time that the Manager determines that they are
readily marketable.  In reaching liquidity decisions,  the Trust's Manager would
consider,  inter alia,  the following  factors:  (1) the frequency of trades and
quotes for the security;  (2) the number of dealers  wishing to purchase or sell
the  security  and  the  number  of  other  potential  purchasers;   (3)  dealer
undertakings  to make a  market  in the  security;  and (4)  the  nature  of the
security  and the nature of the  marketplace  trades  (e.g.,  the time needed to
dispose of the security,  the method of  soliciting  offers and the mechanics of
the  transfer).  Repurchase  agreements  subject  to demand are deemed to have a
maturity equal to the notice period.

Repurchase Agreements

          The  Fund  may  enter  into  repurchase  agreements,        which  are
agreements to purchase  securities  (the  "underlying  securities")  from a bank
which is a member of the  Federal  Reserve  System,  or from a  well-established
securities  dealer,  and the bank or dealer agrees to repurchase  the underlying
securities  from the  Fund,  at the  original  purchase  price,  plus  specified
interest,  at a specified future date;  however,  the Manager does not currently
intend  to  employ  such  investments.  The  Fund  will  enter  into  repurchase
agreements  only where the underlying  securities (1) are of the type (excluding
maturity  limitations)  which the Fund's  investment  policies and  restrictions
would  allow it to purchase  directly  and (2) are "marked to market" on a daily
basis, so that the market value of the underlying securities, including interest
accrued, is equal to or in excess of the value of the repurchase agreement.  The
period of maturity is usually  quite  short,  possibly  overnight or a few days,
although it may extend over a number of months. The resale price is in excess of
the purchase price,  reflecting an agreed-upon  rate of return effective for the
period of time the Fund's money is invested in the security.  The U.S.  Treasury
obligations  held as  collateral  are  valued  daily,  and as the value of these
instruments declines, the Fund will require additional collateral.

     With respect to engaging in repurchase agreements, the Fund's risk would be
primarily that, if the seller defaults, the proceeds from the disposition of the
underlying securities and other collateral for the seller's obligations are less
than the repurchase  price. If the seller becomes  insolvent,  the Fund might be
delayed in or prevented from selling the  collateral.  In the event of a default
or  bankruptcy  by a  seller,  the Fund  will  promptly  seek to  liquidate  the
collateral.  To the extent that the  proceeds  from any sale of such  collateral
upon a default in the  obligation  to  repurchase  are less than the  repurchase
price, the Fund will experience a loss.

     In addition,  interest  income  derived from  repurchase  agreements is not
considered to be income derived from U.S. Treasury obligations and is not exempt
from state and local income  taxes.  In addition,  some states  require that, in
order for the tax exempt  character of the Fund's  interest  from U.S.  Treasury
obligations  to  pass  through  to its  shareholders,  the  Fund  must  maintain
specified   minimum  levels  of  the  Fund's  total  assets  in  U.S.   Treasury
obligations. If the level of non-U.S. Treasury obligations (including repurchase
agreements)  exceeds a state's  limit  for this  pass-through,  then none of the
Fund's  interest  income  would be exempt from state or local  income tax in the
state for the applicable year.  While the Fund does not  specifically  limit the
amount of repurchase  agreements  that it can enter into, the Fund will endeavor
to maintain the levels  necessary to preserve the pass-through of the Fund's tax
exempt interest income from U.S. Treasury obligations.

                             INVESTMENT RESTRICTIONS

     Unless   specified  to  the  contrary,   the  following   restrictions  are
fundamental  and may not be changed as to the Fund  without the  approval of the
majority of the  outstanding  voting  securities  of the Fund (as defined in the
1940 Act).

     As a matter of  fundamental  policy,  the  Trust may not,  on behalf of the
Fund:

(1)  purchase  any  security  other  than  obligations  of the U.S.  Government,
     including repurchase agreements with respect to such securities;

(2)  borrow money,  except from banks for temporary,  extraordinary or emergency
     purposes,   including  the  meeting  of  redemption  requests  which  might
     otherwise require the untimely disposition of securities,  or for clearance
     of transactions; borrowing in the aggregate may not exceed 30% of the value
     of  the  Fund's  total  assets  (including  the  amount   borrowed),   less
     liabilities  (not including the amount  borrowed) at the time the borrowing
     is made;  investment  securities  will not be  purchased  while  borrowings
     exceed 5% of the Fund's total assets;

(3)  issue senior  securities  as defined in the 1940 Act except  insofar as the
     Fund may be deemed to have  issued a senior  security  by  reason  of:  (a)
     entering into any repurchase  agreement;  (b) permitted borrowings of money
     from banks;  or (c)  purchasing  securities  on  "when-issued"  or "delayed
     delivery" basis;

(4)  make loans of the Fund's portfolio  securities,  except through  repurchase
     agreements;

(5)  purchase  securities  on  margin  (except  that the Fund  may  obtain  such
     short-term credits as may be necessary for clearance of transactions);

(6)  act as underwriter  of securities  except to the extent that, in connection
     with the  disposition  of portfolio  securities,  it may be deemed to be an
     underwriter under certain Federal securities laws;

(7)  make short sales or maintain a short position;

(8)  buy or sell real estate or interests in real estate,  including real estate
     limited partnerships;

(9)  acquire securities of other investment companies, except in connection with
     a merger, consolidation, acquisition or reorganization;

(10) make investments for the purpose of exercising control or management;

(11) invest in  interests  in or leases  related  to oil,  gas or other  mineral
     exploration or development programs; or

(12) buy or sell commodities or commodity contracts (including futures contracts
     and options thereon).

     In addition,  as a matter of operating policy, the Trust will not on behalf
of the Fund  invest  more than 25% of the Fund's  total  assets in any  industry
other than the U.S. Government.

     If a  percentage  restriction  is adhered to at the time of  investment,  a
later  increase or decrease in percentage  resulting  from a change in values of
portfolio  securities  or amount of total or net assets will not be considered a
violation of any of the foregoing restrictions.

                              TRUSTEES AND OFFICERS

         Under  Delaware law, the Trust's Board of Trustees is  responsible  for
establishing the Fund's policies and for overseeing  management of the Fund. The
Board also elects the  Trust's  officers  who conduct the daily  business of the
Fund.  The Trustees and principal  officers of the Trust,  their ages, and their
principal  occupations for the past five years, are set forth below.      Unless
otherwise  specified,  the address of each such person is One Corporate  Center,
Rye, New York, 10580-1434.

  Name, Age, Position(s)                                Principal Occupations
  with Trust and Address                                During Past Five Years


Mario J. Gabelli,* 57       Chairman of the Board,  Chief Executive  Officer and
President and Trustee       Chief Investment Officer of Gabelli Asset Management
                            Inc.  (since  1999)  and  Gabelli  Funds,  LLC;
                            Director  or Trustee  and  Officer of various  other
                            mutual funds advised by Gabelli  Funds,  LLC and its
                            affiliates;   Chairman   of  the   Board  and  Chief
                            Executive Officer of Lynch Corporation  (diversified
                            manufacturing and communication  services  company);
                            and Director of East/West Communications, Inc.

Anthony J. Colavita, 64     President  and  Attorney at  Law  in the law firm of
Trustee                     Anthony J.  Colavita,  P.C. since 1961;  Director or
                            Trustee  of sixteen other  mutual  funds  advised by
                            Gabelli Funds, LLC and its affiliates.

Vincent D. Enright, 56      Former Senior Vice  President and Chief  Financial
Trustee                     Officer of KeySpan  Energy Corporation;  Director or
                            Trustee of six other registered investment companies
                            advised by Gabelli Funds, LLC and its affiliates.

John J. Parker, 67          Attorney  at  the  law  firm  of  McCarthy,  Fingar,
Trustee                     Donovan, Drazen & Smith, since August 1989.

Karl Otto Pohl,+ 69         Member of the Shareholder Committee of Sal Oppenheim
Trustee                     Jr. & Cie  (private investment  bank);  Director  of
                            Gabelli  Asset  Management  Inc.  (investment
                            management),    Zurich   Allied   (insurance),   and
                            TrizecHahn Corp. (real estate);  Former President of
                            the Deutsche  Bundesbank and Chairman of its Central
                            Bank  Council from 1980  through  1991;  Director or
                            Trustee of all other mutual funds advised by Gabelli
                            Funds, LLC and its affiliates.

Anthonie C. van Ekris, 64   Managing Director of Balmac International; Director,
Trustee                     Stahel Hardmeyer A.G.; Director  or  Trustee  of ten
                            other  registered  investment  companies  in the
                            Gabelli family.

Bruce N. Alpert, 47         Executive Vice President and Chief Operating Officer
Vice President and          of the Adviser;  Director and  President of  Gabelli
Treasurer                   Advisers,  Inc. and an Officer of all funds  advised
                            by Gabelli Funds, LLC and its affiliates.

Judith A. Raneri, 31        Portfolio  Manager, Gabelli  Funds,  LLC since April
Vice President              1997.   Senior  Portfolio  Manager,   Secretary  and
                            Treasurer of The  Treasurer's  Fund,  Inc. A  member
                            of the Investment and Credit Review Committees.


Ronald S. Eaker, 38         Senior  Portfolio  Manager of Gabelli  Fixed  Income
Vice President              LLC and its  predecessors since 1987.  President and
                            Chief Investment  Officer of  The Treasurer's  Fund,
                            Inc.

Henley L. Smith, 42         Senior  Portfolio  Manager of Gabelli  Fixed  Income
Vice President              LLC and its predecessors since 1987.  Vice President
                            and Investment  Officer  of  The  Treasurer's  Fund
                            Inc.

James E. McKee, 35          Vice President, General Counsel and Secretary of the
Secretary                   Adviser; Vice President and General Counsel of GAMCO
                            Investors,   Inc.  since  1993  and   Gabelli  Asset
                            Management  Inc. since 1999;  Secretary of all funds
                            advised  by  Gabelli Funds, LLC  and  its affiliates
                            since August 1995.

*    "Interested person" of the Fund, as defined in the 1940 Act. Mr. Gabelli is
     an affiliated person of the Manager.

+        Mr. Pohl is a director of the parent company of the Manager.

     No  director,  officer or employee of the Manager or any  affiliate  of the
Manager  receives any  compensation  from the Trust for serving as an officer or
Trustee of the Trust. The Trust pays each of its Trustees who is not a director,
officer or employee of the  Manager or any of its  affiliates,  $3,000 per annum
plus $500 per meeting  attended and  reimburses  each Trustee for related travel
and  out-of-pocket  expenses.      The Trust also pays each Trustee serving as a
member of the Audit, Proxy or Nominating  Committees a fee of $500 per committee
meeting,  if held on a day other than a regularly  scheduled board meeting.  For
the year ended September 30, 1999, Trustee fees totaled $24,500.

                               COMPENSATION TABLE

     The  following   table  sets  forth  certain   information   regarding  the
compensation  of the  Trust's  Trustees.       Except  as  disclosed  below,  no
executive officer or person  affiliated with the Trust received  compensation in
excess of  $60,000  from the Trust  for the  fiscal  year  ended  September  30,
1999.



      (1)                         (2)                           (3)
 Name of Person           Aggregate Compensation          Total Compensation
  and Position                from the Fund               from The Fund and
                                                             Fund Complex*

Anthony J. Colavita               $5,000                    $70,750 (17)
Trustee

Vincent D. Enright                $6,000                    $18,250 (7)
Trustee

John J. Parker                    $6,000                    $6,000 (1)
Trustee

Karl Otto Pohl                    $2,500                    $7,250 (19)
Trustee

Anthonie C. van Ekris             $5,000                    $45,000 (11)
Trustee

*    Represents the total  compensation paid to such persons during the calendar
     year ending  December 31, 1999.  The  parenthetical  number  represents the
     number of investment  companies (including the Fund) from which such person
     receives  compensation that are considered part of the same Fund complex as
     the Fund because they have a common or affiliated investment adviser.



     No compensation was received by Mr. Mario J. Gabelli from the Registrant.



                   CONTROL PERSONS AND PRINCIPAL SHAREHOLDERS

     As of January ____,  2000, the  outstanding  voting  securities of the Fund
consisted of ____ shares of beneficial  interest and the following persons owned
of record or beneficially 5% or more of the Fund's outstanding shares:

Name and Address              % of Class          Nature of Ownership

[Gabelli Funds, Inc.               ____%          Beneficially
John Fodera
One Corporate Center
Rye, New York
10580-1442]

     [As of January __, 2000, as a group, the Trustees and officers of the Trust
[(other than Mr. Gabelli)] owned less than 1% of the Fund's outstanding shares.]




<PAGE>


                         THE MANAGER AND OTHER SERVICES


Manager

         Gabelli  Funds LLC is a New York limited  liability  company which also
serves as an investment adviser to 15 other open-end investment companies, and 4
closed-end investment companies with aggregate assets in excess of $____ billion
as of December 31, 1999.  The Manager is a registered  investment  adviser under
the  Investment  Advisers Act of 1940,  as amended.  Mr. Mario J. Gabelli may be
deemed a  "controlling  person" of the  Manager on the basis of his  controlling
interest of the ultimate parent company of the Manager.  The Manager has several
affiliates that provide  investment  advisory  services:  GAMCO Investors,  Inc.
("GAMCO"),   acts  as  investment  adviser  for  individuals,   pension  trusts,
profit-sharing  trusts  and  endowments,  and had  assets  under  management  of
approximately  $____  billion  under its  management  as of December  31,  1999;
Gabelli Advisers,  Inc. acts as investment adviser to the Gabelli Westwood Funds
with assets under management of  approximately  $____ million as of December 31,
1999; Gabelli Securities, Inc. acts as investment adviser to certain alternative
investments  products,  consisting  primarily  of risk  arbitrage  and  merchant
banking  limited   partnerships  and  offshore  companies,   with  assets  under
management of  approximately  $____ million as of December 31, 1999; and Gabelli
Fixed  Income  LLC acts as  investment  adviser  for the  Treasurer's  Funds and
separate accounts having assets under management of approximately  $____ billion
as of December 31, 1999.


         The Manager currently serves as investment adviser to the Fund pursuant
to a management  agreement  with the Trust (the  "Management  Agreement").
Under the Management Agreement,  the Manager,  subject to the supervision of the
Trustees and in conformity with the stated  policies of the Trust,  manages both
the  investment  operations  of the Trust  and the  composition  of the  Trust's
portfolio,  including the purchase,  retention,  disposition  of securities  and
other investments. The Manager is obligated to keep certain books and records of
the Trust in  connection  therewith.  The Manager is also  obligated  to provide
research  and  statistical  analysis  and to pay costs of certain  clerical  and
administrative  services  involved  in  portfolio  management.   The  management
services  of the Manager to the Trust are not  exclusive  under the terms of the
Management  Agreement  and the Manager is free to, and does,  render  management
services to others.

     The Manager has authorized any of its directors, officers and employees who
have  been  elected  as  Trustees  or  Officers  of the  Trust  to  serve in the
capacities  in which they have been elected.  Services  furnished by the Manager
under the Management Agreement may be furnished by any such directors,  officers
or employees of the Manager.  In  connection  with the services it renders,  the
Manager bears the following expenses:

     (a)  the  salaries  and  expenses  of all  personnel  of the  Trust and the
          Manager,  except  the  fees  and  expenses  of  Trustees  who  are not
          affiliated persons of the Manager or the Trust's investment adviser;

     (b)  all  expenses  incurred by the  Manager or by the Trust in  connection
          with managing the ordinary course of the Trust's business,  other than
          those assumed by the Trust, as described below; and

     (c)  the costs and expenses payable to First Data Investor  Services Group,
          Inc.  (the  "Sub-Administrator")   pursuant  to  a  sub-administration
          agreement   between  the  Manager  and  the   Sub-Administrator   (the
          "Sub-Administration Agreement").

     Under the terms of the Management  Agreement,  the Trust is responsible for
the  payment of the  following  expenses,  including  (a) the fee payable to the
Manager,  (b) the fees and expenses of Trustees who are not affiliated  with the
Manager, (c) the fees and certain expenses of the Trust's Custodian and Transfer
and Divided  Disbursing  Agent,  including the cost of providing  records to the
Manager in connection with its obligation of maintaining required records of the
Trust and of  pricing  the  Trust's  shares,  (d) the fees and  expenses  of the
Trust's legal counsel and independent  auditors,  (e) brokerage  commissions and
any issue or  transfer  taxes  chargeable  to the Trust in  connection  with its
securities transactions, (f) all taxes and business fees payable by the Trust to
governmental  agencies, (g) the fees of any trade association of which the Trust
is a  member,  (h) the cost of share  certificates  representing  shares  of the
Trust, if any, (i) the cost of fidelity  insurance,  and Trustees' and Officers'
and errors and omissions  insurance,  if any, (j) the fees and expenses involved
in registering and maintaining  registration of the Trust and of its shares with
the Securities and Exchange  Commission (the "SEC") and registering the Trust as
a broker or dealer  and  qualifying  its shares  under  state  securities  laws,
including the preparation and printing of the Trust's registration statement and
prospectuses  for such  purposes,  (k)  allocable  communications  expenses with
respect to investor  services and all  expenses of  shareholders  and  Trustees'
meetings and of preparing,  printing and mailing  reports to  shareholders,  (l)
litigation and indemnification expenses and any other extraordinary expenses not
incurred  in the  ordinary  course of the  Trust's  business,  (m) any  expenses
assumed by the Trust  pursuant to a plan of  distribution  adopted in conformity
with Rule 12b-1  under the 1940 Act,  if any,  and (n) the fees and  expenses of
each  series of the Trust in  connection  with the  management,  investment  and
reinvestment of the assets of each such series.

     The Management  Agreement  provides that the Manager shall not be liable to
the Trust for any error of judgment by the Manager or for any loss  sustained by
the Trust except in the case of a breach of  fiduciary  duty with respect to the
receipt of compensation for services (in which case any award of damages will be
limited as provided in the 1940 Act) or of willful misfeasance, bad faith, gross
negligence or reckless  disregard of duty.  The  Management  Agreement in no way
restricts the Manager from acting as adviser to others.  The Trust has agreed by
the terms of the Management  Agreement that the Trust may use the name "Gabelli"
only  for so long as the  Management  Agreement  or any  amendment,  renewal  or
extension thereof remains in effect or for so long as the Manager is responsible
for the portfolio  management  and  administrative  services for the Trust.  The
Trust has  further  agreed  that in the event that for any  reason,  the Manager
ceases  to be  responsible  for  the  portfolio  management  and  administrative
services of the Trust, the Trust will, unless the Manager otherwise  consents in
writing,  promptly take all steps necessary to change its name to one which does
not include "Gabelli."

     The Management Agreement is terminable without penalty by either party upon
not less than sixty (60) days' written  notice.  The  Management  Agreement will
automatically  terminate in the event of its assignment,  as defined in the 1940
Act and rules  thereunder,  except to the extent otherwise  provided by order of
the SEC or any rule  under the 1940 Act and except to the extent the 1940 Act no
longer  provides  for  automatic  termination,  in which case the  approval of a
majority of the independent Trustees is required for any "assignment."

     By its terms,  the  Management  Agreement,  which was last  approved by the
Board of Trustees on November 17, 1999,  will remain in effect         from year
to year,  provided each such annual continuance is specifically  approved by the
Fund's Board of Trustees or "majority"  (as defined in the 1940 Act) vote of its
shareholders and, in either case, by a majority vote of the Trustees who are not
parties to the  Management  Agreement or  interested  persons of any such party,
cast in person at a meeting called specifically for the purpose of voting on the
Management Agreement.

     As  compensation  for its  services and the related  expenses  borne by the
Manager,  the Trust pays the Manager a fee,  computed daily and payable monthly,
equal,  on an annual  basis,  to .30% of the Fund's  average  daily net  assets,
payable out of the Fund's net assets.

     To the extent  necessary,  the Manager has undertaken to waive  voluntarily
fees  provided for in the  Management  Agreement  and/or  voluntarily  to assume
certain  expenses of the Trust so that total  expenses of the Fund do not exceed
 .30% of the Fund's average daily net assets.

         During the fiscal years ended  September  30, 1999,  September 30, 1998
and September 30, 1997,  the  investment  advisory fees paid to the Manager were
$1,257,595, $865,180 and $635,419, respectively.  During such years, the Manager
waived  advisory  fees  in the  amounts  of  $407,351,  $461,367  and  $343,237,
respectively.

The Sub-Administrator

         First Data Investor Services Group, Inc. (the  "Sub-Administrator"),  a
subsidiary  of First Data  Corporation  which is located at 101 Federal  Street,
Boston, Massachusetts 02110, serves as Sub-Administrator to the Fund pursuant to
a  Sub-Administration   Agreement  with  the  Adviser  (the  "Sub-Administration
Agreement").  Under the Sub-Administration  Agreement, the Sub-Administrator (a)
assists  in  supervising  all  aspects  of the Fund's  operations  except  those
performed  by the  Adviser  under its  advisory  agreement  with the  Fund;  (b)
supplies   the   Fund   with   office   facilities   (which   may   be  in   the
Sub-Administrator's own offices), statistical and research data, data processing
services,  clerical,  accounting and bookkeeping  services,  including,  but not
limited  to,  the  calculation  of the net  asset  value of  shares in the Fund,
internal  auditing and legal  services,  internal  executive and  administrative
services,  and  stationery  and office  supplies;  (c) prepares and  distributes
materials for all Fund Board of Trustees'  Meetings including the mailing of all
Board materials and collates the same materials into the Board books and assists
in the drafting of minutes of the Board Meetings;  (d) prepares  reports to Fund
shareholders,  tax returns  and  reports to and  filings  with the SEC and state
"Blue Sky"  authorities;  (e)  calculates  the Fund's net asset value per share,
provides any equipment or services  necessary for the purpose of pricing  shares
or valuing the Fund's investment  portfolio and, when requested,  calculates the
amounts   permitted  for  the  payment  of   distribution   expenses  under  any
distribution  plan adopted by the Fund; (f) provides  compliance  testing of all
Fund activities  against  applicable  requirements of the 1940 Act and the rules
thereunder,  the Internal Revenue Code of 1986, as amended (the "Code"), and the
Fund's  investment  restrictions;  (g) furnishes to the Adviser such statistical
and other factual  information and information  regarding  economic  factors and
trends as the Adviser from time to time may require;  and (h) generally provides
all  administrative  services that may be required for the ongoing  operation of
the Fund in a manner  consistent  with the  requirements  of the 1940 Act.

          For   such   services   and  the   related   expenses   borne  by  the
Sub-Administrator, the Manager pays an annual fee of .0275% of the average daily
net assets of the Trust and certain  other  affiliated  funds not  exceeding $10
billion,  .0125% of net assets  exceeding  $10  billion  but not  exceeding  $15
billion, and .01% of net assets exceeding $15 billion.  The  Sub-Administrator's
fee is paid by the  Manager  and will  result in no  additional  expense  to the
Trust.

The Distributor

     The Trust, on behalf of the Fund, has entered into a Distribution Agreement
with Gabelli & Company,  Inc. (the "Distributor"),  a New York corporation which
is a subsidiary of Gabelli Funds,  Inc., having principal offices located at One
Corporate Center, Rye, New York 10580-1434. The Distributor acts as agent of the
Fund for the continuous  offering of its shares on a no-load basis at no cost to
the  Fund.  In  connection  with the sale of the  Fund's  shares,  the Trust has
authorized the  Distributor to give only such  information and to make only such
statements  and  representations  as are  contained in the Fund's  Prospectus or
Statement of Additional Information. Sales may be made only by Prospectus, which
may be delivered  personally or through the mails. The Distributor is the Fund's
"principal  underwriter" within the meaning of the 1940 Act, and bears all costs
of preparing,  printing and distributing  reports and  prospectuses  used by the
Trust in connection with the sale of the Fund's shares and all sales  literature
printed, counsel fees and expenses in connection with the foregoing.

     The Distribution Agreement is terminable by the Distributor or the Trust at
any time without  penalty on not more than sixty (60) days' nor less than thirty
(30)  days'  written  notice,  provided  that  termination  by the Trust must be
directed or approved by the  Trustees,  by the vote of the holders of a majority
of the  outstanding  voting  securities of the Trust, or by written consent of a
majority  of the  Trustees  who are not  interested  persons of the Trust or the
Distributor.  The  Distribution  Agreement will  automatically  terminate in the
event of its assignment,  as defined in the 1940 Act. The Distribution Agreement
provides that, unless terminated, it will remain in effect from year to year, so
long as continuance of the  Distribution  Agreement is approved  annually by the
Trustees or by a majority of the outstanding voting securities of the Trust, and
in either  case,  also by  majority  of the  Trustees  who are not  "interested"
persons of the Trust, or the Distributor, as defined in the 1940 Act.

Counsel

     Willkie  Farr  &  Gallagher,   787  Seventh  Avenue,  New  York,  New  York
10019-6099, is counsel to the Trust.

Independent Auditors

     Ernst & Young LLP, 787 Seventh Avenue,  New York, New York 10019,  has been
selected as independent auditors for the Trust.


Custodian, Transfer Agent and Dividend Disbursing Agent

     State Street Bank and Trust Company ("State Street"),  225 Franklin Street,
Boston, MA 02110 is the custodian for the Fund's cash and securities  securities
as  well  as the  transfer  and  dividend  disbursing  agent  (the  "Custodian,"
"Transfer  Agent"  and  "Dividend  Disbursing  Agent")  for its  shares.  Boston
Financial Data Services,  Inc. ("BFDS"), an affiliate of State Street located at
the BFDS Building, Two Heritage Drive, Quincy, Massachusetts 02171, performs the
services of  transfer  agent and  dividend  disbursing  agent for the Fund.
Neither  BFDS nor State  Street  assists  in or is  responsible  for  investment
decisions involving assets of the Fund.

                               PURCHASE OF SHARES

     The  procedures  for  purchasing  shares of the Fund are  summarized in the
Fund's Prospectus under "Purchase of Shares."

                                RETIREMENT PLANS

     The Trust has available a form of Individual Retirement Account ("IRA") for
investment  in Fund  shares  which may be  obtained  from the  Distributor.  The
minimum investment  required to open an IRA for investment in shares of the Fund
is $1,000 for an individual.  There is no minimum for additional  investments in
an IRA.

     Under the Code,  individuals may make wholly or partly  tax-deductible  IRA
contributions  of up to $2,000  annually,  depending  on whether they are active
participants in an employer-sponsored retirement plan and/or their income level.
However,  dividends  and  distributions  held in the account are not taxed until
withdrawn in accordance  with the  provisions of the Code. An individual  with a
non-working  spouse may  establish a separate  IRA for the spouse under the same
conditions  and  contribute a maximum of $4,000  annually to both IRAs  provided
that no more  than  $2,000  may be  contributed  to the  IRA of  either  spouse.
Investors   satisfying   statutory   income   levels   requirements   may   make
non-deductible  contributions up to $2,000 annually to a Roth IRA, distributions
from  which are not  subject  to tax if a  statutory  five year  holding  period
requirement is satisfied.

     Investors  who are  self-employed  may purchase  shares of the Fund through
tax-deductible  contributions  to retirement  plans for  self-employed  persons,
known as Keogh or H.R. 10 plans.  The Fund does not currently act as sponsor for
such  plans.  Fund shares may also be a suitable  investment  for other types of
qualified  pension  or  profit-sharing   plans  which  are   employer-sponsored,
including  deferred  compensation  or salary  reduction  plans  known as "401(k)
Plans" which give participants the right to defer portions of their compensation
for investment on a  tax-deferred  basis until  distributions  are made from the
plans.  The minimum initial  investment for such plans is $1,000 and there is no
minimum for additional investments.

     Investors  should  be  aware  that  they may be  subject  to  penalties  or
additional tax on  contributions  or withdrawals  from IRAs or other  retirement
plans which are not permitted by the applicable  provisions of the Code. Persons
desiring  information  concerning  investments  through IRAs or other retirement
plans should write or telephone the Distributor.

                              REDEMPTION OF SHARES

     The  procedures  for redemption of shares of the Fund are summarized in the
Prospectus under "Redemption of Shares." The Trust has elected to be governed by
Rule 18f-1 under the 1940 Act pursuant to which the Trust is obligated to redeem
shares  solely in cash up to the lesser of  $250,000  or one  percent of the net
asset value of the Fund during any 90-day period for any one shareholder.

     None  of the  Manager,  the  Transfer  Agent,  the  Trust  or any of  their
affiliates or agents will be liable for any loss,  expense,  or cost when acting
upon any oral,  wired, or electronically  transmitted  instructions or inquiries
believed by them to be genuine.  While  precautions will be taken, as more fully
described  below,  shareholders  bear  the  risk of any  loss as the  result  of
unauthorized  telephone  redemptions or exchanges believed by the Transfer Agent
to be  genuine.  The Trust will employ  reasonable  procedures  to confirm  that
instructions  communicated by telephone are genuine.  These  procedures  include
recording all phone conversations,  sending confirmations to shareholders within
72 hours of the  telephone  transaction,  verifying the account name and sending
redemption proceeds only to the address of record or to a previously  authorized
bank account.  If a shareholder  is unable to contact the Trust by telephone,  a
shareholder  must also mail the  redemption  request to the  Distributor  at The
Gabelli Funds, P.O. Box 8308, Boston, Massachusetts 02266-8308.

                                 NET ASSET VALUE

     The method for  determining  the public offering price of the Fund's shares
and the net asset value per share is summarized in the Prospectus under
    Pricing of Fund Shares."

     The Fund relies on Rule 2a-7 under the 1940 Act to use the  amortized  cost
valuation method to stabilize the purchase and redemption price of its shares at
$1.00 per share. This method of valuation involves valuing portfolio  securities
at  their  cost at the time of  purchase  and  thereafter  assuming  a  constant
amortization to maturity of any discount or premium, regardless of the impact of
interest rate fluctuations on the market value of the securities. While reliance
on Rule 2a-7 should enable the Fund, under most conditions,  to maintain a $1.00
share price,  there can be no assurance that the Fund will be able to do so, and
investment in the Fund is neither insured nor guaranteed by the U.S. Government.

     As required by Rule 2a-7, the Trustees have adopted the following  policies
relating to the Fund's use of the amortized cost method:

     (a)  The Trustees  have  established  procedures  which they consider to be
          reasonably  designed,  taking into account  current market  conditions
          affecting the Fund's investment objective,  to stabilize its net asset
          value at $1.00 per share.

     (b)  The  Trustees  (i) have  adopted  procedures  whereby  the  extent  of
          deviation  between the  current  net asset value per share  calculated
          using available market quotations or market-based  quotations from the
          Fund's  amortized  cost price per share,  will be  determined  at such
          intervals as the Trustees deem  appropriate  and as are  reasonable in
          light of current market conditions,  (ii) will periodically review the
          amount of  deviation  as well as the  methods  used to  calculate  the
          deviation,  and (iii) will maintain  records of the  determination  of
          deviation  and  the  Trustees'  review  thereof.  In  the  event  such
          deviation exceeds 3/10 of 1%, the Trustees will promptly consider what
          action,  if any,  should  be  taken  to  prevent  the  deviation  from
          exceeding  1/2 of  1%.  Where  the  Trustees  believe  the  extent  of
          deviation may result in material  dilution or other unfair  results to
          investors or exiting shareholders, they shall take such action as they
          deem  appropriate  to  eliminate  or reduce to the  extent  reasonably
          practicable such dilution or unfair results.

     (c)  The Fund will seek to  maintain a  dollar-weighted  average  portfolio
          maturity  appropriate  to its  objective of  maintaining  a stable net
          asset value per share;  provided,  however,  that it will not purchase
          any instrument  with a remaining  maturity (as determined  pursuant to
          Rule 2a-7) longer than 397 days nor maintain a dollar-weighted average
          portfolio maturity which exceeds 90 days.

     (d)  The Fund will limit its portfolio  investments,  including  repurchase
          agreements, to those United States dollar-denominated securities which
          the Manager,  acting in  accordance  with  procedures  and  guidelines
          approved by the Trustees,  determines to be of eligible quality and to
          present  minimal credit risks.  The Fund will invest in U.S.  Treasury
          obligations and repurchase agreements  collateralized by U.S. Treasury
          obligations.  The types of U.S. Treasury obligations in which the Fund
          will  invest  include  (1) bills,  notes and bonds  issued by the U.S.
          Treasury that are direct  obligations  of the U.S.  Government and (2)
          component parts of U.S. Treasury notes and bonds,  namely,  either the
          corpus (principal) of such Treasury obligations or one of the interest
          payments scheduled to be paid on such obligations.     See "Investment
          and Risk Information" in the Prospectus.

     (e)  The Fund will record,  maintain and preserve  permanently in an easily
          accessible place a written copy of the procedures  described above and
          will  record,  maintain and preserve for a period of not less than six
          years (two years in an easily  accessible  place) a written  record of
          the Trustees'  considerations and actions taken in connection with the
          discharge of their obligations set forth above.

     While the  procedures  adopted by the Trustees have been designed to enable
the Fund to achieve its investment objective of maintaining a $1.00 share price,
there can be no assurance that a constant share price will be maintained. In the
event that market conditions or changes in issuer  creditworthiness  result in a
substantial  deviation  between the Fund's $1.00  amortized cost price per share
and its net asset  value  per  share  based on the  market  value of the  Fund's
portfolio,  the  Trustees  will take such  action  as they deem  appropriate  to
eliminate or reduce to the extent possible any dilution of shareholder interests
or other unfair results to existing  shareholders or investors.  Such action may
include  basing the purchase and  redemption  price of Fund shares on the Fund's
market-based  net asset  value,  with the result that the Fund's price per share
may be higher or lower than $1.00.



                      PORTFOLIO TRANSACTIONS AND BROKERAGE

     The Manager is responsible for decisions to buy and sell securities for the
Fund,  arranging the execution of portfolio  transactions  on the Fund's behalf,
and  selection of brokers and dealers to effect the  transactions.  Purchases of
portfolio securities are made from dealers,  underwriters and issuers; sales, if
any,  prior to  maturity,  are made to dealers  and  issuers.  The Fund does not
normally incur any brokerage commission expense on such transactions. There were
no  brokerage  commissions  incurred  by the  Fund  since  its  commencement  of
operations.  The  instruments  purchased by the Fund are  generally  traded on a
"net" basis with dealers  acting as principal  for their own accounts  without a
stated commission,  although the price of the security usually includes a profit
to the dealer.  Securities  purchased in underwritten  offerings include a fixed
amount  of  compensation  to  the  underwriter,  generally  referred  to as  the
underwriter's  concession  or discount.  When  securities  are purchased or sold
directly from or to an issuer, no commissions or discounts are paid.

     The policy of the Fund regarding  purchases and sales of securities is that
primary  consideration  will be given to obtaining the most favorable  price and
efficient execution of transactions.


<PAGE>


                                    TAXATION

         The Fund has  qualified,  and  intends to  continue  to  qualify,  as a
"Regulated  Investment Company" under Subchapter M of the Code. If so qualified,
the Fund will not be subject to federal income tax on its net investment  income
and  capital  gains,  if any,  realized  during  any  taxable  year in  which it
distributes  such  income to its  shareholders.  However,  the Fund may still be
liable for an excise tax on income that is not  distributed in accordance with a
calendar  year  requirement.  The Fund intends to avoid the excise tax by making
timely distributions.

     Generally,  you will owe tax on the amounts  distributed to you, regardless
of whether you receive these amounts in cash or reinvest them in additional Fund
shares.  Shareholders  not subject to tax on their income  generally will not be
required to pay any tax on amounts  distributed  to them.  Federal income tax on
distributions  to an IRA or to a qualified  retirement  plan will  generally  be
deferred.

     Capital gains, if any,  derived from sales of portfolio  securities held by
the Fund will generally be designated as long-term or short-term.  Distributions
from the Fund's  long-term  capital  gains are  generally  taxed at a  favorable
long-term capital gains rate regardless of how long you have owned shares in the
Fund.  Dividends  from other  sources are  generally  taxed as ordinary  income.
Distributions from capital gains may be subject to state and local taxes.

     Dividends and capital gain  distributions  are  generally  taxable when you
receive them;  however,  if a distribution  is declared in October,  November or
December,  but  not  paid  until  January  of the  following  year,  it  will be
considered  to be paid on  December  31 in the year in  which  it was  declared.
Shortly  after the end of each year,  you will receive from the Fund a statement
of the amount and nature of the distributions made to you during the year.

                       INVESTMENT PERFORMANCE INFORMATION

     The Fund will prepare a current  quotation of yield from time to time.  The
yield quoted will be the simple  annualized  yield for an  identified  seven (7)
calendar  day  period.  The yield  calculation  will be based on a  hypothetical
account  having a balance of exactly one share at the beginning of the seven-day
period.  The  base  period  return  will  be  the  change  in the  value  of the
hypothetical  account during the seven-day period,  including dividends declared
on any shares  purchased  with dividends on the shares but excluding any capital
changes.  The yield will vary as interest rates and other  conditions  affecting
money market  instruments  change.      The yield for the seven-day period ended
September 30, 1999 was 4.46% (4.36% without waivers),  which is equivalent to an
effective yield of 4.56% (4.46% without waivers).      The yield also depends on
the quality,  length of maturity and type of instruments in the Fund's portfolio
and its operating expenses.  The Fund may also prepare an effective annual yield
computed by compounding the unannualized  seven-day period return as follows: by
adding 1 to the unannualized seven-day period return, raising the sum to a power
equal to 365 divided by 7, and subtracting 1 from the result.

              EFFECTIVE YIELD = [(base period return + 1)365/7] -1

     The Fund may also  calculate  the tax  equivalent  yield over a  thirty-day
period.  The tax  equivalent  yield will be  determined  by first  computing the
current yield as discussed  above.  The Fund will then determine what portion of
the yield is attributable to securities, the income of which is exempt for state
and local income tax purposes. This portion of the yield will then be divided by
one minus the maximum state tax rate of  individual  taxpayers and then added to
the portion of the yield that is attributable to other securities.

     The Fund's yield will fluctuate,  and annualized yield quotations are not a
representation  by the Fund as to what an  investment  in the Fund will actually
yield for any given  period.  Actual yields will depend upon not only changes in
interest rates  generally  during the period in which the investment in the Fund
is held, but also on any realized or unrealized  gains and losses and changes in
the Fund's expenses.

     The Fund may  advertise  certain total return  information  computed in the
manner  described in the  Prospectus.  An average annual compound rate of return
("T") will be computed by using the  redeemable  value at the end of a specified
period "ERV" of a hypothetical  initial investment of $1,000 ("P") over a period
of time ["n"] according to the formula: P (1 + T)n = ERV.

     Comparative  performance  information  may be  used  from  time  to time in
advertising  or  marketing  the  Fund's  shares,   including  data  from  Lipper
Analytical Services,  Inc., IBC Money Fund Report, The Bank Rate Monitor,  other
industry publications, business periodicals, rating services and market indices.

                        DESCRIPTION OF THE FUND'S SHARES

    Description of Shares, Voting Rights and Liabilities

     The Fund is the initial series of shares of beneficial  interest (par value
$.001) of the Trust.  The  Trustees  are  authorized  to  designate  one or more
additional  series of shares of  beneficial  interest of the Trust,  each series
representing  a separate  investment  portfolio.  Shares of all series will have
identical  voting rights,  except where by law, certain matters must be approved
by a majority of the shares of the affected series.  Each share of any series of
shares when issued has equal dividend,  liquidation (see "Redemption of Shares")
and voting rights within the series for which it was issued and each  fractional
share has those rights in proportion to the percentage that the fractional share
represents of a whole share. Shares will be voted in the aggregate.

     Shares have no preference,  preemptive,  conversion or similar rights.  All
shares, when issued in accordance with the terms of the offering,  will be fully
paid and  nonassessable.  Shares  will be redeemed  at net asset  value,  at the
option of the shareholder.

     The Fund sends  semi-annual  and annual reports to all of its  shareholders
which include a list of the Fund's portfolio securities and the Fund's financial
statements  which  shall  be  audited  annually.  Unless  it  is  clear  that  a
shareholder  holds as  nominee  for the  account  of an  unrelated  person  or a
shareholder  otherwise  specifically  requests in  writing,  the Fund may send a
single copy of  semi-annual,  annual and other  reports to  shareholders  to all
accounts at the same address and all accounts of any person at that address.

     It  is  the  intention  of  the  Trust  not  to  hold  annual  meetings  of
shareholders. The Trustees may call a special meeting of shareholders for action
by shareholder vote as may be required by the 1940 Act, the Declaration of Trust
of the Trust or the  By-Laws of the Trust.  In  addition,  the Trust will call a
special meeting of  shareholders  for the purpose of voting upon the question of
removal of a Trustee or  Trustees,  if  requested  to do so by the holders of at
least  10% of the  Trust's  outstanding  shares,  and the Trust  will  assist in
communications  with other shareholders as required by Section 16(c) of the 1940
Act.

     Shares of the Trust have  noncumulative  voting rights which means that the
holders of more than 50% of shares can elect 100% of the Trustees if the holders
choose to do so, and, in that event,  the holders of the  remaining  shares will
not be able to elect person or persons as Trustees.  The Transfer Agent does not
issue certificates evidencing Fund shares.


<PAGE>


                              FINANCIAL STATEMENTS


THE GABELLI U.S. TREASURY MONEY MARKET FUND
STATEMENT OF NET ASSETS -- SEPTEMBER 30, 1999

                           Annualized
Principal                  Yield at Date             Maturity         Market
Amount                     of Purchase               Date             Value

                  U.S. TREASURY OBLIGATIONS -- 99.8%
                           U.S. Treasury Bills -- 72.7%
$350,690,000      U.S. Treasury Bills
                  4.439% to 4.887%                   10/14/99-       348,858,078
                                                     11/26/99
                           Interest Rate

                           U.S. Treasury Notes -- 27.1%

30,000,000        U.S. Treasury Notes -- 5.625%      11/30/99         30,037,932
40,000,000        U.S. Treasury Notes -- 5.375%      01/31/00         40,034,095
15,000,000        U.S. Treasury Notes -- 5.500%      02/29/00         15,014,305
25,000,000        U.S. Treasury Notes -- 5.500%      03/31/00         25,026,682
40,000,000        U.S. Treasury Notes -- 5.875%      11/15/99         20,022,440

                                                                      ----------
                                                                     130,135,454

                                                                      ----------
TOTAL INVESTMENTS (Cost $478,993,532)(a)              99.8%          478,993,532
Other Assets and Liabilities (Net)                     0.2             1,105,980
                                                      -----           ----------
NET ASSETS (applicable to 480,099,512 shares outstanding,
  $0.001 par value, one billion shares authorized)   100.0%         $480,099,512
                                                     =====            ==========
NET ASSET VALUE, Offering and Redemption Price Per Share               $1.00
                                                                       =====
- ----------------------------------------------
(a)  Aggregate cost for Federal tax purposes.


THE GABELLI U.S. TREASURY MONEY MARKET FUND
FINANCIAL HIGHLIGHTS

Selected data for a share of beneficial  interest  outstanding  throughout  each
period.

<TABLE>
<CAPTION>
<S>                                          <C>         <C>          <C>          <C>           <C>

                                            1999         1998        1997(d)       1996         1995
                                            ----         ----        ----          ----         ----
Operating performance:
Net asset value, beginning of year....      $1.00        $1.00        $1.00        $1.00        $1.00
                                            -----        -----        -----        -----        -----
Net investment income (a).............     0.0422       0.0496       0.0485       0.0492       0.0528
Net realized gain on investments......     0.0005       0.0005       0.0013       0.0006       0.0002
                                           ------       ------       ------       ------       ------
Total from investment operations......     0.0427       0.0501       0.0498       0.0498       0.0530
                                           ------       ------       ------       ------       ------

Distributions to shareholders:
Net investment income.................    (0.0422)     (0.0496)     (0.0485)     (0.0492)     (0.0528)
Net realized gain on investments..        (0.0005)     (0.0005)     (0.0013)     (0.0006)     (0.0002)
                                           ------      --------     --------     --------     --------
Total distributions...................    (0.0427)     (0.0501)     (0.0498)     (0.0498)     (0.0530)
                                           ------      --------     --------     --------     --------

Net asset value, end of year..........      $1.00        $1.00        $1.00        $1.00        $1.00
                                            =====        =====        =====        =====        =====
Total return (b)......................      4.4%         5.1%         5.1%         5.1%         5.4%
                                            ====         ====         ====         ====         ====

Ratios to average net assets and
supplemental data:
Net assets, end of year (in 000s)...      $480,100     $314,394     $203,542     $216,038     $218,036
Ratio of net investment income
   to average net assets..............      4.19%        4.91%        4.85%        4.92%        5.30%
Ratio of operating expenses
   to average net assets (c)..........      0.30%        0.30%        0.30%        0.30%        0.27%
         .........
- ------------------

+    Total return  represents  aggregate  total return of a hypothetical  $1,000
     investment at the beginning of the period and sold at the end of the period
     including reinvestment of dividends.

(a)  Net  investment  income  before  fees  waived by the Manager for the fiscal
     years ended  September 30, 1999,  1998,  1997,  1996 and 1995 were $0.0412,
     $0.0475, $0.0469, $0.0477 and $0.0516, respectively.

(b)  Operating  expense  ratios before fees waived by the Manager for the fiscal
     years ended  September  30,  1999,  1998,  1997,  1996 and 1995 were 0.40%,
     0.46%, 0.45%, 0.45% and 0.39%, respectively.

(c)  Gabelli Funds, LLC (formerly known as Gabelli Funds,  Inc.) became the sole
     investment adviser of the Fund on April 15, 1997.

</TABLE>

                       See accompanying notes to financial statements.


THE GABELLI U.S. TREASURY MONEY MARKET FUND
STATEMENT OF OPERATIONS - FOR THE YEAR ENDED SEPTEMBER 30, 1999

Investment Income:
         Interest.                                          $19,227,778
                                                            ------------
Expenses:
         Management fee                                       1,257,445
         Transfer agent fees                                    169,462
         Custodian fees                                          70,007
         Registration fees                                       49,500
         Legal and audit fees                                    33,700
         Trustees' fees                                          26,163
         Shareholder communications expenses                     36,631
         Miscellaneous expenses                                  22,038
                                                            ------------
         Total Expenses before fees waived
         by Manager                                           1,664,946
         Fees waived by Manager                                (407,351)
                                                            ------------
         Total Expenses - Net                                 1,257,595
                                                            ------------
Net Investment Income                                        17,970,183
Net realized gain on investments                                230,183
                                                            -------------
Net Increase in net assets resulting from operations        $18,200,366
                                                            ========


THE GABELLI U.S. TREASURY MONEY MARKET FUND
STATEMENT OF CHANGES IN NET ASSETS

                                        Year Ended          Year Ended
                                        September           September
                                        30, 1999            30, 1998
                                        ----------          ----------
Operations:
   Net investment income                $17,970,183         $14,145,169
   Net realized gain on investments         230,183             240,664
                                        -----------         -----------
   Net increase in net assets resulting
   from operations                       18,200,366          14,385,833
                                        -----------         -----------
Distribution to shareholders:
   Net investment income                (17,970,183)        (14,145,169)
   Net realized gain on investments        (230,183)           (245,894)
                                        -----------         ------------
   Total distribution to shareholders   (18,200,366)        (14,391,063)
                                        -----------         ------------

Share transactions ($1.00 per share):
   Shares sold....                    2,175,277,133       1,769,620,862
   Shares issued upon reinvestment of dividends
   and distributions                     17,576,389          13,843,721
   Shares redeemed                   (2,027,147,677)     (1,672,607,748)
                                        ------------        ------------
   Net increase in net assets           165,705,845         110,851,605

Net Assets:
   Beginning of period                  314,393,667         203,542,062
                                        ------------        ------------
   End of period..                     $480,099,512        $314,393,667
                                        =========           =========

                 See accompanying notes to financial statements.


THE GABELLI U.S. TREASURY MONEY MARKET FUND
NOTES TO FINANCIAL STATEMENTS

     1. ORGANIZATION.  The Gabelli U.S. Treasury Money Market Fund (the "Fund"),
a series of The Gabelli Money Market Funds (the  "Trust"),  was organized on May
21,  1992 as a Delaware  business  trust.  The Fund is a  diversified,  open-end
management  investment  company  registered under the Investment  Company Act of
1940, as amended (the "1940 Act"). The Fund's primary  objective is high current
income  consistent with the  preservation  of principal and liquidity.  The Fund
commenced investment operations on October 1, 1992.

     2. SIGNIFICANT ACCOUNTING POLICIES. The preparation of financial statements
in accordance with generally accepted accounting  principles requires management
to  make  estimates  and  assumptions  that  affect  the  reported  amounts  and
disclosures in the financial statements.  Actual results could differ from those
estimates.  The  following  is a  summary  of  significant  accounting  policies
followed by the Fund in the preparation of its financial statements.

     SECURITY  VALUATION.  Investments  are  valued  at  amortized  cost  (which
approximates market value) whereby a portfolio  instrument is valued at cost and
any discount or premium is amortized on a constant  basis to the maturity of the
instrument.

     SECURITIES TRANSACTIONS AND INVESTMENT INCOME.  Securities transactions are
accounted  for on the  trade  date  with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization of premium and accretion of discount) is recorded as earned.

     DIVIDENDS AND  DISTRIBUTIONS.  Dividends from investment  income (including
realized  capital  gains  and  losses)  are  declared  daily  and paid  monthly.
Distributions of long term capital gains, if any, are paid annually.

     PROVISION FOR INCOME TAXES.  The Fund has qualified and intends to continue
to qualify as a regulated  investment company under Subchapter M of the Internal
Revenue Code of 1986, as amended. As a result, a Federal income tax provision is
not required.

     3.  AGREEMENTS  WITH  AFFILIATED  PARTIES.  The  Trust has  entered  into a
management  agreement (the "Management  Agreement") with Gabelli Funds, LLC (the
"Manager"),  which provides that the Trust will pay the Manager a fee,  computed
daily and paid  monthly,  at the annual rate of 0.30 percent of the value of the
Fund's average daily net assets.  In accordance  with the Management  Agreement,
the Manager provides a continuous  investment  program for the Fund's portfolio,
oversees the  administration  of all aspects of the Fund's  business and affairs
and pays the  compensation  of all Officers and Trustees of the Fund who are its
affiliates.  To the extent  necessary,  the  Manager  has  undertaken  to assume
certain  expenses  of the Trust so that the total  expenses  do not exceed  0.30
percent of the Fund's average daily net assets. For the year ended September 30,
1999, the Manager voluntarily waived management fees of $407,351.


REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

TO THE SHAREHOLDERS AND BOARD OF TRUSTEES OF
THE GABELLI U.S. TREASURY MONEY MARKET FUND
(a series of The Gabelli Money Market Funds)

     We have  audited the  accompanying  statement  of net assets of The Gabelli
U.S.  Treasury  Money  Market Fund (the  "Fund") (a series of The Gabelli  Money
Market Funds) as of September 30, 1999, and the related  statement of operations
for the year then ended,  the statement of changes in net assets for each of the
two years in the period then ended, and the financial highlights for each of the
five years in the period then ended.  These  financial  statements and financial
highlights are the responsibility of the Fund's  management.  Our responsibility
is to express an opinion on these financial  statements and financial highlights
based on our audits.

     We conducted  our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  financial  statements  and  financial
highlights are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  Our  procedures  included  confirmation  of securities  owned as of
September 30, 1999 by correspondence with the custodian.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

     In our opinion,  the financial statements and financial highlights referred
to above present fairly, in all material respects, the financial position of The
Gabelli U.S. Treasury Money Market Fund as of September 30, 1999, the results of
its operations for the year then ended, the changes in their net assets for each
of the two years in the period then ended, and the financial highlights for each
of the five  years in the  period  then  ended,  in  conformity  with  generally
accepted accounting principles.

                                                       Ernst & Young LLP

New York, New York
November 1, 1999


                   1999 TAX NOTICE TO SHAREHOLDERS (UNAUDITED)

U.S. GOVERNMENT INCOME:

     The percentage of the ordinary  income dividend paid by the Fund during the
period from  October 1, 1998 through  September  30, 1999 which was derived from
U.S.  Treasury  Securities was 100%.  Such income is exempt from state and local
income tax in all states. Due to the diversity in state and local tax law, it is
recommended  that you consult your personal tax advisor as to the  applicability
of the information provided to your specific situation.


<PAGE>


                           PART C: OTHER INFORMATION

Item 23.  Exhibits.

          (a)  Certificate   of   Trust  is   incorporated   by   reference   to
               Post-Effective  Amendment No. 6 to the Registrant's  Registration
               Statement on Form N-1A as filed with the SEC via EDGAR on January
               31, 1997.

               Declaration   of   Trust  is   incorporated   by   reference   to
               Post-Effective  Amendment No. 6 to the Registrant's  Registration
               Statement on Form N-1A as filed with the SEC via EDGAR on January
               31, 1997.

          (b)  Amended and  Restated  By-Laws are  incorporated  by reference to
               Post-Effective  Amendment No. 6 to the Registrant's  Registration
               Statement on Form N-1A as filed with the SEC via EDGAR on January
               31, 1997.

          (c)  Not Applicable.

          (d)  Management  Agreement  between the  Registrant and Gabelli Funds,
               Inc.  ("Gabelli  Funds" or the "Manager") dated December 16, 1994
               is incorporated by reference to Post-Effective Amendment No. 5 to
               the  Registrant's  Registration  Statement  on Form N-1A as filed
               with the SEC via EDGAR on January 31, 1996.

               Amendment to the Management  Agreement between the Registrant and
               Gabelli  Funds,  LLC (formerly  known as "Gabelli  Funds,  Inc.")
               dated November 17, 1999 is filed herewith.

               Sub-Administration Agreement  between  the Manager and First Data
               Investor Services Group, Inc. (formerly known as "The Shareholder
               Services Group, Inc.", "FDISG" or the "Sub-Administrator")  dated
               May 1,  1995  is  incorporated  by  reference  to  Post-Effective
               Amendment  No. 5 to the  Registrant's  Registration  Statement on
               Form N-1A as filed with the SEC via EDGAR on January 31, 1996.

          (e)  Distribution  Agreement  between  the  Registrant  and  Gabelli &
               Company,  Inc. ("Gabelli" or the "Distributor")  dated August 18,
               1992 is incorporated by reference to Post-Effective Amendment No.
               5 to the  Registrant's  Registration  Statement  on Form  N-1A as
               filed with the SEC via EDGAR on January 31, 1996.

          (f)  Not Applicable.

          (g)  Custodian  Agreement between the Registrant and State Street Bank
               and Trust Company is incorporated by reference to  Post-Effective
               Amendment  No. 6 to the  Registrant's  Registration  Statement on
               Form N-1A as filed with the SEC via EDGAR on January 31, 1997.

          (h)  Transfer Agency Agreement between the Registrant and State Street
               Bank  and  Trust   Company  is   incorporated   by  reference  to
               Post-Effective  Amendment No. 6 to the Registrant's  Registration
               Statement on Form N-1A as filed with the SEC via EDGAR on January
               31, 1997.

          (i)      Consent of Counsel is filed herewith.

          (j)      Consent of Independent Auditors is filed herewith.

               Powers of attorney  for  Anthony  Colavita,  Vincent E.  Enright,
               Thomas E. O'Connor,  John J. Parker,  Karl Otto Pohl and Anthonie
               C. van Ekris are  incorporated  by  reference  to  Post-Effective
               Amendment  No. 6 to the  Registrant's  Registration  Statement on
               Form N-1A as filed with the SEC via EDGAR on January 31, 1997.

               Power  of  Attorney  for  Mario J.  Gabelli  is  incorporated  by
               reference to  Post-Effective  Amendment No. 8 to the Registrant's
               Registration  Statement  on Form  N-1A as filed  with the SEC via
               EDGAR on February 2, 1998.

               Secretary's  Certificate  ratifying  and  approving  a  power  of
               attorney for Mario J. Gabelli is filed herewith.

          (k)  Not Applicable.

          (l)  Purchase Agreement is incorporated by reference to Post-Effective
               Amendment  No. 6 to the  Registrant's  Registration  Statement on
               Form N-1A as filed with the SEC via EDGAR on January 31, 1997.

          (m)  Not Applicable.

          (n)  Not Applicable.

          (o)  Not Applicable.

Item 24.  Persons Controlled by or Under Common Control with the Fund.

          None.

Item 25.  Indemnification.

          To the extent  consistent with Section 17(h) and (i) of the Investment
          Company  Act of 1940,  as amended  (the "1940  Act") and  pursuant  to
          Sections 2 and 3 of Article  VII of the  Registrant's  Declaration  of
          Trust and Article VI of the Registrant's By-Laws,  Trustees,  officers
          and employees of the Trust will be  indemnified  to the maximum extent
          permitted by Delaware law and the 1940 Act.

          Reference is made to Sections 2 and 3 of Article Seven of Registrant's
          Declaration of Trust and Article VI of the Registrant's By-Laws.

          Insofar  as   indemnification   for  liabilities   arising  under  the
          Securities  Act of 1933 may be  permitted  to  trustees,  officers and
          controlling   persons  of   Registrant   pursuant  to  the   foregoing
          provisions,  or  otherwise,  Registrant  has been  advised that in the
          opinion of the Securities and Exchange Commission such indemnification
          is against  public policy as expressed in that Act and is,  therefore,
          unenforceable.  In the event that a claim for indemnification  against
          such  liabilities  (other than the payment by  Registrant  of expenses
          incurred  or paid by a  trustee,  officer  or  controlling  person  of
          Registrant  in  the  successful   defense  of  any  action,   suit  or
          proceeding) is asserted by such trustee, officer or controlling person
          in connection with the securities being  registered,  Registrant will,
          unless in the opinion of its  counsel  the matter has been  settled by
          controlling precedent,  submit to a court of appropriate  jurisdiction
          the question of whether such  indemnification  by it is against public
          policy  as  expressed  in the Act and will be  governed  by the  final
          adjudication of such issue.

          The   Registrant   hereby   undertakes   that   it  will   apply   the
          indemnification  provisions of its Declaration of Trust,  its By-Laws,
          the Management  Agreement,  the  Sub-Administration  Agreement and the
          Distribution  Agreement in a manner  consistent with Release No. 11330
          of the Securities and Exchange Commission under the 1940 Act.

Item 26.  Business and Other Connections of the Investment Adviser

          Gabelli Funds, LLC (the "Manager") is a registered  investment adviser
          providing  investment  management and  administrative  services to the
          Registrant. The Manager also provides similar services to other mutual
          funds.

          The  information  required  by this Item 26 with  respect to any other
          business,  profession,  vocation or employment of a substantial nature
          engaged in by directors  and  officers of the Manager  during the past
          two  years is  incorporated  by  reference  to Form  ADV  filed by the
          Manager pursuant to the Investment  Advisers Act of 1940 (SEC File No.
          801-37706).

Item 27.  Principal Underwriters

          (a)  Gabelli & Company,  Inc. ("Gabelli & Company")  currently acts as
               distributor for The Gabelli ABC Fund, The Gabelli Asset Fund, The
               Gabelli Blue Chip Value Fund, The Gabelli Capital Asset Fund, The
               Gabelli  Convertible  Securities  Fund,  Inc., The Gabelli Equity
               Income Fund,  The Gabelli  Equity Trust Inc.,  The Gabelli Global
               Convertible Securities Fund, The Gabelli Global Interactive Couch
               Potato(R)Fund,  The Gabelli  Global  Multimedia  Trust Inc.,  The
               Gabelli Global  Telecommunications Fund, Gabelli Gold Fund, Inc.,
               The Gabelli Growth Fund, The Gabelli  International  Growth Fund,
               Inc., The Gabelli Global  Opportunity  Fund, The Gabelli  Mathers
               Fund,  The Gabelli Small Cap Growth Fund,  The Gabelli  Utilities
               Fund, The Gabelli Utility Trust, The Gabelli Value Fund, Inc. and
               the Gabelli Westwood Funds.

          (b)  The  information  required  by this Item 27 with  respect to each
               director, officer or partner of Gabelli & Company is incorporated
               by  reference to Schedule A of Form BD filed by Gabelli & Company
               pursuant to the Securities  Exchange Act of 1934, as amended (SEC
               File No. 8-21373).

          (c)  Not applicable.

Item 28.   Location of Accounts and Records.

          All such accounts, books and other documents required by Section 31(a)
          of  the  1940  Act  and  Rules  31a-1  through  31a-3  thereunder  are
          maintained  at the  offices  of       Gabelli  Funds,  LLC      ,  One
          Corporate  Center,  Rye, New York  10580-1434     First Data  Investor
          Services Group, 101 Federal Street, Boston,  Massachusetts 02110     ;
          State  Street Bank and Trust  Company,  225 Franklin  Street,  Boston,
          Massachusetts  02110;  and Boston  Financial Data Services,  Inc., Two
          Heritage Drive, North Quincy, Massachusetts 02171.

Item 29.  Management Services.

          Not Applicable.

Item 30.  Undertakings.

          Not Applicable.


<PAGE>



                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, and
the  Investment  Company Act of 1940, as amended,  the  Registrant,  THE GABELLI
MONEY  MARKET  FUNDS,  has duly  caused  this  Post-Effective  Amendment  to its
Registration  Statement  to be signed on its  behalf  by the  undersigned,  duly
authorized,  in the  City of Rye and  State  of New  York,  on the  29th  day of
November, 1999

                                                  THE GABELLI MONEY MARKET FUNDS


                                                  By: Mario J. Gabelli *
                                                  Mario J. Gabelli
                                                  President

     Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,
this  Post-Effective  Amendment  No. 10 to its  Registration  Statement has been
signed  below  by the  following  persons  in the  capacities  and on the  dates
indicated.

Signatures                    Title                              Date


/s/ Mario J. Gabelli*         President and Trustee              11/29/99
Mario J. Gabelli

/s/ Bruce N. Alpert           Vice President and                 11/29/99
Bruce N. Alpert...            Treasurer

/s/ Anthony Colavita*         Trustee                            11/29/99
Anthony J. Colavita

/s/ Vincent D. Enright*       Trustee                            11/29/99
Vincent E. Enright

/s/ John J. Parker*           Trustee                            11/29/99
John J. Parker

/s/ Karl Otto Pohl*           Trustee                            11/29/99
Karl Otto Pohl

/s/ Anthonie C. van Ekris*    Trustee                            11/29/99
Anthonie C. van Ekris


*By: /s/ BRUCE N. ALPERT                                         11/29/99
         Bruce N. Alpert
         Attorney-in-fact




<PAGE>


                                  EXHIBIT INDEX

               Exhibit
               Number                        Description



               23(d)                         Amendment to Management Agreement

               23(i)                         Consent of Counsel

               23(j)                         Consent of Independent Auditors

                                             Secretary's Certificate







                                 Amendment No. 1
                                     to the
                              Management Agreement


     This  Amendment  No. 1 dated as of  November  17,  1999 is entered  into by
Gabelli Funds,  LLC (formerly known as Gabelli Funds,  Inc.) (the "Manager") and
The Gabelli Money Market Funds (the "Trust").

     WHEREAS,  the Manager and the Trust  entered  into a  Management  Agreement
dated as of December 16, 1994 (the "Management Agreement"); and

     WHEREAS,  the Manager and the Trust wish to amend the Management  Agreement
to reflect the change in the Manager's name;

     NOW, THEREFORE,  the parties hereto,  intending to be legally bound hereby,
hereby agree as follows:

     1.   The name "Gabelli Funds,  Inc." in the Management  Agreement is hereby
          deleted in all  places  where it appears  and  replaced  with the name
          "Gabelli Funds, LLC."

     2.   The Management  Agreement shall remain in full force and effect in all
          other respects.

     IN WITNESS  WHEREOF,  the undersigned have executed this Amendment No. 1 as
of the date and year first written above.


THE GABELLI MONEY MARKET FUNDS


By:      /s/ BRUCE N. ALPERT


GABELLI FUNDS, LLC


By:      /s/ BRUCE N. ALPERT





November 29, 1999
The Gabelli Money Market Funds
One Corporate Center
Rye, New York 10580-1434

Re:      Post-Effective Amendment No. 10 to Registration Statement
         (Securities Act File No. 33-48220; Investment Company Act
         File No. 811-6687) (the "Registration Statement")

Ladies and Gentlemen:

     You have  requested  us, as counsel to The Gabelli  Money Market Funds (the
"Trust"), a business trust organized under the laws of the State of Delaware, to
furnish  you with  this  opinion  in  connection  with  the  Trust's  filing  of
Post-Effective  Amendment No. 10 to its Registration Statement on Form N-1A (the
"Amendment").

     We have examined  copies of the Trust's  Agreement and Declaration of Trust
and By-laws,  each as now in effect,  and the  Amendment.  We have also examined
such other  records,  documents,  papers,  statutes and  authorities  as we have
deemed necessary to form a basis for the opinion hereinafter  expressed.  In our
examination  of the above  material,  we have  assumed  the  genuineness  of all
signatures,  the authenticity of all documents  submitted to us as originals and
the  conformity  to  original  documents  of all copies  submitted  to us. As to
various  questions  of  fact  material  to our  opinion,  we  have  relied  upon
statements and  certificates  of officers and  representatives  of the Trust and
others. Based upon the foregoing, we are of the opinion that:

     1.   The Trust is duly  organized and validly  existing as a business trust
          in good standing under the laws of the State of Delaware.

     2.   The  shares  of the  Trust  to be  offered  for sale  pursuant  to the
          Registration  Statement are duly authorized and, when sold, issued and
          paid for as contemplated by the Registration Statement, will have been
          validly and legally issued and will be fully paid and nonassessable.

     We hereby  consent  to the  filing of this  opinion  as an  exhibit  to the
Amendment,  to  the  reference  to our  name  under  the  heading  "Counsel  and
Independent  Accountants" in the Statement of Additional Information included as
part of the  Amendment,  and to the filing of this  opinion as an exhibit to any
application  made by or on behalf of the Trust or any  distributor  or dealer in
connection  with the  registration or  qualification  of the Trust or the shares
under the securities laws of any state or other jurisdiction.

     We do not intend to express any  opinion as to any matters  governed by any
law other than the law of the State of New York, the General  Corporation Law of
the State of Delaware  (including  the  applicable  provisions  of the  Delaware
Constitution and the reported judicial  decisions  interpreting  those laws) and
the federal law of the United States.

Very truly yours,
/s/ Willkie Farr & Gallagher
Willkie Farr & Gallagher





                         Consent of Independent Auditors


     We  consent to the  reference  to our firm  under the  captions  "Financial
Highlights" and "General Information - Counsel and Independent  Auditors" and to
the use of our report on The  Gabelli  U.S.  Treasury  Money  Market  Fund dated
November 1, 1999, in this Registration Statement (Form N-1A No. 33-48220) of The
Gabelli Money Market Funds.


                                                         /s/  Ernst & Young, LLP
                                                              Ernst & Young, LLP


New York, New York
November 23, 1999





                             SECRETARY'S CERTIFICATE


     I, Julie A. Tedesco, Assistant Secretary of The Gabelli Money Market Funds,
a Delaware  business  trust (the  "Fund"),  pursuant to the vote  adopted by the
Board of Trustees at a meeting held on February 18, 1998 and in accordance  with
said vote,  do hereby  certify  that the Board  Members  ratified and approved a
power of attorney from Mario J. Gabelli  authorizing  Bruce N. Alpert to execute
and sign on behalf of Mario J. Gabelli, Chief Executive Officer of the Fund, all
amendments and supplements to the Fund's Registration Statement on Form N-1A.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand as officer of said Fund
this 18th day of February, 1998.



                                                            /s/ JULIE A. TEDESCO
                                                                Julie A. Tedesco
                                                             Assistant Secretary




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