FISHERY BULLETIN; VOL. 76, NO. 1 



though we have specifically searched for it. Other 

 scarids occur there, and there seems no simple 

 reason for the nonoccurrence of S. croicensis at 

 this island. 



ACKNOWLEDGMENTS 



Deborah W. Arneson assisted in all the field 

 observations and commented on the manuscript. 

 The staff of the Discovery Bay Marine Laboratory, 

 particularly Eileen Graham, made this project 

 possible. John C. Ogden and Ileana Clavijo are 

 thanked for commenting on the manuscript. 

 Evangelina Hernandez prepared Figures 2 and 5. 

 Observations at Isla Desecheo were carried out 

 from the RV Corallina. Those and the observa- 

 tions at St. John were made possible by a grant 

 from the Oceanography Section, National Science 

 Foundation (NSF Grant OCE76-02352), Patrick 

 L. Colin, Principal Investigator. 



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