[ARTICLE] 6
[CIK] 0000880583
[NAME] THE TRAVELERS SERIES TRUST
[SERIES]
   [NUMBER] 8
   [NAME] MFS EMERGING GROWTH PORTFOLIO
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   YEAR
[FISCAL-YEAR-END]                          DEC-31-1998
[PERIOD-END]                               DEC-31-1998
[INVESTMENTS-AT-COST]                      126,866,733
[INVESTMENTS-AT-VALUE]                     169,993,345
[RECEIVABLES]                                  545,071
[ASSETS-OTHER]                                  18,269
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                             170,556,685
[PAYABLE-FOR-SECURITIES]                       331,383
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                      166,178
[TOTAL-LIABILITIES]                            497,561
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                   128,975,715
[SHARES-COMMON-STOCK]                       10,081,086
[SHARES-COMMON-PRIOR]                        5,600,999
[ACCUMULATED-NII-CURRENT]                            0
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                     (2,043,324)
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                    43,126,733
[NET-ASSETS]                               170,059,124
[DIVIDEND-INCOME]                              142,709
[INTEREST-INCOME]                              326,415
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                 998,823
[NET-INVESTMENT-INCOME]                       (529,694)
[REALIZED-GAINS-CURRENT]                    (1,225,490)
[APPREC-INCREASE-CURRENT]                   37,341,898
[NET-CHANGE-FROM-OPS]                       35,586,709
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                            0
[DISTRIBUTIONS-OF-GAINS]                             0
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                      5,189,246
[NUMBER-OF-SHARES-REDEEMED]                    709,159
[SHARES-REINVESTED]                                  0
[NET-CHANGE-IN-ASSETS]                      99,712,071
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                     (606,979)
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                          837,712
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                998,823
[AVERAGE-NET-ASSETS]                       111,968,637
[PER-SHARE-NAV-BEGIN]                            12.56
[PER-SHARE-NII]                                 (00.07)
[PER-SHARE-GAIN-APPREC]                          04.38
[PER-SHARE-DIVIDEND]                                 0
[PER-SHARE-DISTRIBUTIONS]                            0
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              16.87
[EXPENSE-RATIO]                                  00.89
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>