UNITED STATES DEPARTMENT OF THE INTERIOR 

 U.S. Fish and Wildlife Service 



BUREAU OF COMMERCIAL FISHERIES 



REPORT OF THE 



BUREAU OF COMMERCIAL FISHERIES 



BIOLOGICAL LABORATORY, 



GALVESTON, TEXAS 



Fiscal Year 1967 



Milton J. Lindner, Director 

 Robert E. Stevenson, Assistant Director 



Contribution No. Z6l, Bureau of Connmercial Fisheries 

 Biological Laboratory, Galveston, Texas 



Circular 295 



Washington, D.C. 

 December 1968 



