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SIGNATURE JOHN H. COSTELLO
TITLE ASSISTANT TREASURER
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40,766
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(13)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
40,753
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
729
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
89,085
<NUMBER-OF-SHARES-REDEEMED>
85,423
<SHARES-REINVESTED>
628
<NET-CHANGE-IN-ASSETS>
123,859
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(256)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,364
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,058
<AVERAGE-NET-ASSETS>
45,347
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.016
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.016
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 72
<NAME> Tax#Exempt Portfolio
Class II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
2,387,045
<INVESTMENTS-AT-VALUE>
2,387,045
<RECEIVABLES>
55,602
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
2,442,647
<PAYABLE-FOR-SECURITIES>
109,603
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
5,200
<TOTAL-LIABILITIES>
114,803
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
2,328,114
<SHARES-COMMON-STOCK>
50,470
<SHARES-COMMON-PRIOR>
30,833
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(270)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
2,327,844
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
43,187
<OTHER-INCOME>
0
<EXPENSES-NET>
2,421
<NET-INVESTMENT-INCOME>
40,766
<REALIZED-GAINS-CURRENT>
(13)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
40,753
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
632
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
189,768
<NUMBER-OF-SHARES-REDEEMED>
170,721
<SHARES-REINVESTED>
590
<NET-CHANGE-IN-ASSETS>
123,859
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(256)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,364
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,058
<AVERAGE-NET-ASSETS>
38,142
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.017
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.017
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
36
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 71
<NAME> Tax#Exempt Portfolio
Class I
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
2,387,045
<INVESTMENTS-AT-VALUE>
2,387,045
<RECEIVABLES>
55,602
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
2,442,647
<PAYABLE-FOR-SECURITIES>
109,603
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
5,200
<TOTAL-LIABILITIES>
114,803
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
2,328,114
<SHARES-COMMON-STOCK>
2,236,078
<SHARES-COMMON-PRIOR>
2,136,132
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(270)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
2,327,844
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
43,187
<OTHER-INCOME>
0
<EXPENSES-NET>
2,421
<NET-INVESTMENT-INCOME>
40,766
<REALIZED-GAINS-CURRENT>
(13)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
40,753
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
39,405
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
5,176,120
<NUMBER-OF-SHARES-REDEEMED>
5,086,022
<SHARES-REINVESTED>
9,848
<NET-CHANGE-IN-ASSETS>
123,859
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(256)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,364
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,058
<AVERAGE-NET-ASSETS>
2,273,819
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.017
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.017
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
20
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 21
<NAME> Government Portfolio Class I
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
4,886,006
<INVESTMENTS-AT-VALUE>
4,886,006
<RECEIVABLES>
16,955
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
4,902,961
<PAYABLE-FOR-SECURITIES>
129,433
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
10,800
<TOTAL-LIABILITIES>
140,233
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
4,763,699
<SHARES-COMMON-STOCK>
3,987,638
<SHARES-COMMON-PRIOR>
3,528,704
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(971)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
4,762,728
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
129,839
<OTHER-INCOME>
0
<EXPENSES-NET>
5,521
<NET-INVESTMENT-INCOME>
124,318
<REALIZED-GAINS-CURRENT>
26
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
124,344
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
103,706
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
16,451,262
<NUMBER-OF-SHARES-REDEEMED>
16,038,166
<SHARES-REINVESTED>
45,838
<NET-CHANGE-IN-ASSETS>
407,828
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(997)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
4,616
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
6,773
<AVERAGE-NET-ASSETS>
3,809,373
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.027
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
20
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 22
<NAME> Government Portfolio Class II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
4,886,006
<INVESTMENTS-AT-VALUE>
4,886,006
<RECEIVABLES>
16,955
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
4,902,961
<PAYABLE-FOR-SECURITIES>
129,433
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
10,800
<TOTAL-LIABILITIES>
140,233
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
4,763,699
<SHARES-COMMON-STOCK>
181,132
<SHARES-COMMON-PRIOR>
151,966
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(971)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
4,762,728
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
129,839
<OTHER-INCOME>
0
<EXPENSES-NET>
5,521
<NET-INVESTMENT-INCOME>
124,318
<REALIZED-GAINS-CURRENT>
26
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
124,344
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
4,810
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,402,053
<NUMBER-OF-SHARES-REDEEMED>
1,376,401
<SHARES-REINVESTED>
3,514
<NET-CHANGE-IN-ASSETS>
407,828
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(997)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
4,616
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
6,773
<AVERAGE-NET-ASSETS>
181,305
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
35
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 23
<NAME> Government Portfolio Class III
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
4,886,006
<INVESTMENTS-AT-VALUE>
4,886,006
<RECEIVABLES>
16,955
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
4,902,961
<PAYABLE-FOR-SECURITIES>
129,433
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
10,800
<TOTAL-LIABILITIES>
140,233
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
4,763,699
<SHARES-COMMON-STOCK>
594,349
<SHARES-COMMON-PRIOR>
674,646
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(971)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
4,762,728
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
129,839
<OTHER-INCOME>
0
<EXPENSES-NET>
5,521
<NET-INVESTMENT-INCOME>
124,318
<REALIZED-GAINS-CURRENT>
26
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
124,344
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
15,802
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
4,477,572
<NUMBER-OF-SHARES-REDEEMED>
4,570,274
<SHARES-REINVESTED>
12,405
<NET-CHANGE-IN-ASSETS>
407,828
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(997)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
4,616
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
6,773
<AVERAGE-NET-ASSETS>
612,938
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 11
<NAME> Money Market Portfolio Class I
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
10,982,454
<INVESTMENTS-AT-VALUE>
10,982,454
<RECEIVABLES>
114,547
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
11,097,001
<PAYABLE-FOR-SECURITIES>
480,000
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
21,842
<TOTAL-LIABILITIES>
501,842
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
10,597,537
<SHARES-COMMON-STOCK>
9,874,869
<SHARES-COMMON-PRIOR>
9,386,116
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(2,378)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
10,595,159
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
316,790
<OTHER-INCOME>
0
<EXPENSES-NET>
10,866
<NET-INVESTMENT-INCOME>
305,924
<REALIZED-GAINS-CURRENT>
(104)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
305,820
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
288,235
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
40,348,958
<NUMBER-OF-SHARES-REDEEMED>
40,051,068
<SHARES-REINVESTED>
190,863
<NET-CHANGE-IN-ASSETS>
637,365
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(2,274)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
11,042
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
13,951
<AVERAGE-NET-ASSETS>
10,522,411
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.027
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
18
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 12
<NAME> Money Market Portfolio Class II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
10,982,454
<INVESTMENTS-AT-VALUE>
10,982,454
<RECEIVABLES>
114,547
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
11,097,001
<PAYABLE-FOR-SECURITIES>
480,000
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
21,842
<TOTAL-LIABILITIES>
501,842
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
10,597,537
<SHARES-COMMON-STOCK>
245,601
<SHARES-COMMON-PRIOR>
86,009
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(2,378)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
10,595,159
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
316,790
<OTHER-INCOME>
0
<EXPENSES-NET>
10,866
<NET-INVESTMENT-INCOME>
305,924
<REALIZED-GAINS-CURRENT>
(104)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
305,820
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
3,913
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
739,510
<NUMBER-OF-SHARES-REDEEMED>
583,626
<SHARES-REINVESTED>
3,708
<NET-CHANGE-IN-ASSETS>
637,365
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(2,274)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
11,042
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
13,951
<AVERAGE-NET-ASSETS>
145,424
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.027
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
33
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 13
<NAME> Money Market Portfolio Class III
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
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10,982,454
<INVESTMENTS-AT-VALUE>
10,982,454
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114,547
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0
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0
<TOTAL-ASSETS>
11,097,001
<PAYABLE-FOR-SECURITIES>
480,000
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
21,842
<TOTAL-LIABILITIES>
501,842
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
10,597,537
<SHARES-COMMON-STOCK>
477,044
<SHARES-COMMON-PRIOR>
487,919
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(2,378)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
10,595,159
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
316,790
<OTHER-INCOME>
0
<EXPENSES-NET>
10,866
<NET-INVESTMENT-INCOME>
305,924
<REALIZED-GAINS-CURRENT>
(104)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
305,820
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
13,776
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
2,045,624
<NUMBER-OF-SHARES-REDEEMED>
2,067,526
<SHARES-REINVESTED>
11,027
<NET-CHANGE-IN-ASSETS>
637,365
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(2,274)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
11,042
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
13,951
<AVERAGE-NET-ASSETS>
523,828
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
43
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 63
<NAME> Treasury Only Portfolio
Class III
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
1,049,100
<INVESTMENTS-AT-VALUE>
1,049,100
<RECEIVABLES>
10,355
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,059,462
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,385
<TOTAL-LIABILITIES>
3,385
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,056,277
<SHARES-COMMON-STOCK>
80,584
<SHARES-COMMON-PRIOR>
100,468
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(200)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,056,077
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
27,782
<OTHER-INCOME>
0
<EXPENSES-NET>
1,173
<NET-INVESTMENT-INCOME>
26,609
<REALIZED-GAINS-CURRENT>
39
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
26,648
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
2,081
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
213,518
<NUMBER-OF-SHARES-REDEEMED>
234,538
<SHARES-REINVESTED>
1,136
<NET-CHANGE-IN-ASSETS>
(23,796)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(239)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,039
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,470
<AVERAGE-NET-ASSETS>
84,745
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.024
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
0
<PER-SHARE-DISTRIBUTIONS>
.024
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 62
<NAME> Treasury Only Portfolio
Class II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
1,049,100
<INVESTMENTS-AT-VALUE>
1,049,100
<RECEIVABLES>
10,355
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,059,462
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,385
<TOTAL-LIABILITIES>
3,385
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,056,277
<SHARES-COMMON-STOCK>
50,764
<SHARES-COMMON-PRIOR>
36,849
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(200)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,056,077
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
27,782
<OTHER-INCOME>
0
<EXPENSES-NET>
1,173
<NET-INVESTMENT-INCOME>
26,609
<REALIZED-GAINS-CURRENT>
39
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
26,648
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
937
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
121,241
<NUMBER-OF-SHARES-REDEEMED>
108,043
<SHARES-REINVESTED>
717
<NET-CHANGE-IN-ASSETS>
(23,796)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(239)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,039
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,470
<AVERAGE-NET-ASSETS>
37,124
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.025
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.025
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
35
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 61
<NAME> Treasury Only Portfolio
Class I
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
1,049,100
<INVESTMENTS-AT-VALUE>
1,049,100
<RECEIVABLES>
10,355
<ASSETS-OTHER>
7
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,059,462
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,385
<TOTAL-LIABILITIES>
3,385
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,056,277
<SHARES-COMMON-STOCK>
924,726
<SHARES-COMMON-PRIOR>
942,593
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(200)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,056,077
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
27,782
<OTHER-INCOME>
0
<EXPENSES-NET>
1,173
<NET-INVESTMENT-INCOME>
26,609
<REALIZED-GAINS-CURRENT>
39
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
26,648
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
23,591
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,348,410
<NUMBER-OF-SHARES-REDEEMED>
1,372,641
<SHARES-REINVESTED>
6,364
<NET-CHANGE-IN-ASSETS>
(23,796)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(239)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,039
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,470
<AVERAGE-NET-ASSETS>
914,449
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
20
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 51
<NAME> Domestic Portfolio Class I
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
1,272,507
<INVESTMENTS-AT-VALUE>
1,272,507
<RECEIVABLES>
7,772
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,280,279
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,433
<TOTAL-LIABILITIES>
2,433
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,277,940
<SHARES-COMMON-STOCK>
1,125,775
<SHARES-COMMON-PRIOR>
1,170,937
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(94)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,277,846
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
34,980
<OTHER-INCOME>
0
<EXPENSES-NET>
1,389
<NET-INVESTMENT-INCOME>
33,591
<REALIZED-GAINS-CURRENT>
35
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
33,626
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
30,141
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
5,572,691
<NUMBER-OF-SHARES-REDEEMED>
5,636,301
<SHARES-REINVESTED>
18,448
<NET-CHANGE-IN-ASSETS>
(740)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(129)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,242
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,687
<AVERAGE-NET-ASSETS>
1,108,004
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.027
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
20
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 52
<NAME> Domestic Portfolio Class II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
1,272,507
<INVESTMENTS-AT-VALUE>
1,272,507
<RECEIVABLES>
7,772
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,280,279
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,433
<TOTAL-LIABILITIES>
2,433
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,277,940
<SHARES-COMMON-STOCK>
46,465
<SHARES-COMMON-PRIOR>
34,458
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(94)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,277,846
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
34,980
<OTHER-INCOME>
0
<EXPENSES-NET>
1,389
<NET-INVESTMENT-INCOME>
33,591
<REALIZED-GAINS-CURRENT>
35
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
33,626
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
960
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
446,138
<NUMBER-OF-SHARES-REDEEMED>
435,076
<SHARES-REINVESTED>
945
<NET-CHANGE-IN-ASSETS>
(740)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(129)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,242
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,687
<AVERAGE-NET-ASSETS>
35,711
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.027
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.027
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
35
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 53
<NAME> Domestic Portfolio Class III
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
1,272,507
<INVESTMENTS-AT-VALUE>
1,272,507
<RECEIVABLES>
7,772
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,280,279
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,433
<TOTAL-LIABILITIES>
2,433
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,277,940
<SHARES-COMMON-STOCK>
105,685
<SHARES-COMMON-PRIOR>
73,304
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(94)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,277,846
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
34,980
<OTHER-INCOME>
0
<EXPENSES-NET>
1,389
<NET-INVESTMENT-INCOME>
33,591
<REALIZED-GAINS-CURRENT>
35
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
33,626
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
2,490
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
405,519
<NUMBER-OF-SHARES-REDEEMED>
375,047
<SHARES-REINVESTED>
1,909
<NET-CHANGE-IN-ASSETS>
(740)
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(129)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,242
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,687
<AVERAGE-NET-ASSETS>
95,277
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 43
<NAME> Treasury Portfolio
CLass III
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
9,286,192
<INVESTMENTS-AT-VALUE>
9,286,192
<RECEIVABLES>
9,952
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
9,296,144
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
42,560
<TOTAL-LIABILITIES>
42,560
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
9,253,956
<SHARES-COMMON-STOCK>
4,253,392
<SHARES-COMMON-PRIOR>
2,999,235
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(372)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
9,253,584
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
229,075
<OTHER-INCOME>
0
<EXPENSES-NET>
12,794
<NET-INVESTMENT-INCOME>
216,281
<REALIZED-GAINS-CURRENT>
347
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
216,628
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
88,778
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
18,365,706
<NUMBER-OF-SHARES-REDEEMED>
17,128,403
<SHARES-REINVESTED>
16,854
<NET-CHANGE-IN-ASSETS>
1,345,721
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(781)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
8,210
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
14,581
<AVERAGE-NET-ASSETS>
3,442,107
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.026
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.026
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
45
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 42
<NAME> Treasury Portfolio
CLass II
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
MAR-31-1999
<PERIOD-END>
SEP-30-1998
<INVESTMENTS-AT-COST>
9,286,192
<INVESTMENTS-AT-VALUE>
9,286,192
<RECEIVABLES>
9,952
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
9,296,144
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
42,560
<TOTAL-LIABILITIES>
42,560
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
9,253,956
<SHARES-COMMON-STOCK>
353,845
<SHARES-COMMON-PRIOR>
410,416
<ACCUMULATED-NII-CURRENT>
0
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0
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(372)
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0
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0
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0
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0
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216,281
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347
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0
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0
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9,328
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0
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0
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2,609,784
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2,668,466
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2,111
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1,345,721
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0
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(781)
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0
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0
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8,210
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0
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14,581
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356,199
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1.000
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.026
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0
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.026
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0
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0
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1.000
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35
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0
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0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000356173
<NAME> Colchester Street Trust
<SERIES>
<NUMBER> 41
<NAME> Treasury Portfolio
CLass I
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<S>
<C>
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4,498,843
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0
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0
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