SCHAEFER, M. B., AND C. J. OrANGE. 



1956. Studies of the sexual development and 

 spawning of yellowfin tuna (Neothunnus macrop- 

 terus) and skipjack (Katsuwonus pelamis) in 

 three areas of the eastern Pacific Ocean, by ex- 

 amination of gonads. [In English and Spanish.] 

 Inter- Am. Trop. Tuna Comm., Bull. 1:281-349. 



Simmons, D. C. 



1969. Maturity and spawning of skipjack tuna 

 (Katsuwonus pelamis) in the Atlantic Ocean, 

 with comments on nematode infestation of the 

 ovaries. U.S. Fish Wildl. Serv., Spec. Sci. Rep. 

 Fish. 580, 17 p. 



David C. Simmons 

 LuciNDA McDade 



Southeast Fisheries Center 



National Marine Fisheries Service, NOAA 



75 Virginia Beach Drive 



Miami, FL 33H9 



324 



