FISHERY BULLETIN: VOL. 74, NO. 3 



tricia M. Bird gave unstinted help with both 

 experimental and field vi^ork and was responsible 

 for the necessary underwater field photographs, 

 one of which is reproduced as Figure 15. Lynn 

 Erdoesy, amanuensis, prepared the manuscript 

 with patience and skill and Patricia Morrissey 

 gave it her special attention through production. 

 Stewart Springer made possible the reproduction 

 of Figure 11. 



Extended correspondence with Daniel Weihs, 

 Technion-Israel Institute, Haifa, Israel, was of 

 great help in connection with hydrodynamic mat- 

 ters, as were communications with Charles W. 

 McCutchen of The National Institutes of Health. 



Ross F. Nigrelli of the Osborn Marine Labora- 

 tory, New York Zoological Society, supplied special 

 data; Carl L. Hubbs of the Scripps Institution of 

 Oceanography furnished data on some Pacific 

 fishes; James W. Atz of the American Museum of 

 Natural History provided bibliographic and other 

 help; and Phyllis Cahn, Long Island University of 

 New York, provided advice on several matters in 

 addition to reading the manuscript. The National 

 Marine Fisheries Service Honolulu Laboratory 

 provided the photo for Figure 11. Fritz Goro kindly 

 provided a fresh print of his remarkable photo- 

 graph used in Figure 20. To all these people go my 

 profound thanks. 



This project was supported, in part, by National 

 Science Foundation grant GB-34377 from 1 June 

 1972 (proposal submitted 1 May 1971). 



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