Notes on some South American Fishes. 63*? 



Each jaw with a series of incisors with very oblique cutting edge, behind 

 which are several series of much smaller conical teeth. 



45 females, 6 males. Rio Grrande do Sul. 



Poecilia decemniaciilata (Jenyns). 



D. 8 ; A. 10 ; Lat. 1. 29. 8—11 black spots along the sides. The edges of 

 the scales darker. A series of incisors with obliquely truncate cutting edge, 

 behind which are smaller conical teeth. 



Four females. 



Mugil cepUalUS L., or platanus Giinther. 



Many young. I am unable to say with certainty whether these 

 Specimens are if. cephalus or M. platanus. 



Ather illicit thy s bonarieiisis (C. & V.). One specimen. 

 Astroiiotus portalagrensis Hensel. Three specimens. 

 AstronotllS facetus (.lenyns). Many specimens. 

 Crenicicllla saxatilis L. Five specimens. 



These specimens represent the lepidota of Heckel, but the char- 

 acters separating this species from saxatitis are variable. While the 

 typical saxatitis is said to contain 54 series of scales, lepidota has 

 but 44. Specimens examined from the lower Amazon have 48 and 

 50. 



GeophagUS brasiliensis Quoy & Graimard. Four specimens. 



