PEARSE FISHES OF LAKE VALENCIA, VENEZUELA 



Pandosentis iracundus Van Cleave 



39 



This minute parasite was found in the chusco, Aquidens 

 pulcher (Gill), and in the mataguaro, Crenicichla geayi Pellegrin. 

 Quadrigyrus torquatus Van Cleave 



This worm was found in five species of fishes: the guabina, 

 Hoplias malabaricus (Bloch) ; anguilla, Symbranchus marmoratus 

 Bloch; mataguaro, Crenicichla geayi Pellegrin; and the sardinas, 

 Gephyrocharax valenciae Eigenmann and Astyanax bimaculatus 

 (L.). 



NEMATODA 



The nematode parasites were sent to Dr. N. A. Cobb of the 

 Bureau of Plant Industry and as it will probably be some time 

 before he is ready to report, these worms are listed as "intestinal" 

 when they occurred in the lumen of the intestine and "visceral" 

 when they were found encysted among the visceral organs. 



CRUSTACEA 



Aegathoa lazzari Pearse 



Found twice on fishes from Lake Valencia on the sardinas 

 Astyanax bimaculatus (L.) and Gephyrocharax valenciae Eigen- 

 mann. 



Dolops geayi Bouvier 



This argulid was found on fishes, attached to the body at 

 bases of the fins, and in the branchial and buccal cavities. 

 The following fishes served as hosts: chusco, Aquidens pulcher 

 (Gill); mataguaro, Crenicichla geayi Pellegrin; and the guabina, 

 Hoplias malabaricus (Bloch). 



FIG. 14. Porocephalus gracilis. 



