PEARSE FISHES OF LAKE VALENCIA, VENEZUELA 43 



TABLE VI. B. ASTYANAX BIMACULATUS 



Chaestomus pearsei, Coroncho 



Ten specimens were caught in the Rio Castano July 16. 

 Five of these were free from parasites; the other five carried a 

 total of twenty-seven intestinal nematodes. 

 Creagrutus beni, Sardina 



Ten specimens, caught by the Isla del Euro, July 12, carried 

 two species of parasites. Nine of the specimens had a total of 

 108 Parspina bagre cysts in the fins. Two each had a single 

 intestinal nematode. 



Crenicichla geayi, Mataguaro 



This fish carried eight species of parasites, (Table VI C) 

 TABLE VI. C. CRENICICHLA GEAYI 



tThis species is very transparent. It may have occurred before July 9 and been overlooked. 

 Jt also leaves its host readily and swims in the water. Such behavior makes statistical records 

 even more unreliable. 



