Contents —continued 



SILLIMAN, RALPH P. Effect of crowding on stock and catch in Tilapia mossambica 685 

 WENNER, CHARLES A. The occurrence of elvers of Synaphobranchus affinis on the 



continental slope off North Carolina 687 



PEARCY, WILLIAM G., DANIEL A. PANSHIN, and DONALD F. KEENE. Catches 



of albacore at different times of the day 691 



Vol. 73, No. 2 was published on 30 April 1975. 



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