Dave Hawkins, defending National A.A.U. champion in the 100-yard butterfly, will attempt to retain his crown over the new longer 220-yard distance--and against the man who beat him last weekend--at New Haven tomorrow.

He will be the only member of the Crimson swimming team at the meet in Yale's Payne Whitney pool.

After setting an intercollegiate and American record of 2:13.8 in the 200-yard butterfly two weeks ago, Hawkins lost the same event to Phil Drake of the University of North Carolina at the N.C.A.A. meet last Saturday.

Drake did a 2:13.7, ahead of Hawkins' second place 2:14.6. Hawkins' dolphin kick was off at the N.C.A.A.'s but may be working well for this A.A.U. meet, Drake has reportedly hit 2:13.2, however.

In addition, the Australian will meet Eulalio Rios of Mexico, who won the 200-meter butterfly at the recent Pan-American games.