UNITED STATES DEPARTMENT OF THE INTERIOR 



Walter J. Hickel, Secretary 



Russell E. Train, Under Secretary 



Leslie L. Glasgow, Assistant Secretary 



for Fish and Wildlife, Parks, and Marine Resources 



Charles H. Meacham, Commissioner, U.S. FISH AND WILDLIFE SERVICE 



Dayton L. Alverson, Acting Director, BUREAU OF COMMERCIAL FISHERIES 



Diagnostic Characters of Juveniles of the Shrimps 



Penoeus azfecus azfecus, P. duororum duorarum, 



and P. brasiliensis 



(Crustacea, Decapoda, Penaeidae) 



By 



ISABEL PEREZ FARFANTE 



United States Fish and Wildlife Service 

 Special Scientific Report-Fisheries No. 599 



Washing:ton, D.C. 

 FEBRUARY 1970 



