156 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. VII. 



Goodea atripinnis Jordan. 



Jesus Maria (175), 30 to 50 mm.; San Miguel (19), 33 to 75 mm. 



Family Atherinidae. 



Chi rostoma arge (Jordan & Snyder) . 

 San Miguel (47), 33 to 75 mm. 



Family Scienidse. 



Haploidonotus grunniens Rafinesque. MATALOTE. 

 Roderiguez (7), 145 to 260 mm. 



Family Ceiitrarchidse. 



Lepomis pallidus (Mitchill). 



Sabinas (50), 40 to no mm.; Roderiguez (12). 



Lepomis megalotis (Rafinesque). 



Sabinas (6), 75 to 105 mm.; Roderiguez (2), 93 mm. 



Family Cichlidfe. 



Cichlasoma cyanoguttatum (Baird & Girard). 



The dentition of this species varies greatly, especially so if we con- 

 sider Neetroplus carpintus Jordan and Snyder identical with it. In 

 my account of the genus Neetroplus (Field Mus. Pub., Zool. Ser., V., 

 221) I called attention to the fact that the incisor teeth of N. carpintis 

 were not always evident. Owing to the variation in color and form 

 as well as in dentition, I am inclined to believe Mr. Regan is correct 

 in combining these two supposed species. The smallest specimens 

 (50 mm.) usually have pointed conical teeth. Other specimens (100 

 to 150 mm.) may have very few incisor-like teeth while in others of 

 the same size these teeth are quite evident. For fishes of the length 



