Notes on some South American Fishes. 629 



A number of specimens from Braret show the following varia- 

 tion. Old males with a horizontal <-shaped spot on the root of the 

 caudal, the upper limb continued onto the caudal. From the end 

 of the lower limb a dusky streak extends upward and backward on 

 the caudal. Behind this the caudal is dusky, in front of it white. 

 Dorsal high, with oblique dark spots on the membranes. On other, 

 mostly smaller, males, the coloration does not differ from that of the 

 females, which are unmarked, save for the darker borders of the 

 scales and an occasional humeral and ventral spot, as in the speci- 

 mens from Para. The fin formulas and scales as in the specimens 

 from Para. 



Pcecilia branneri sp. nov. 



D. 7 in female, 9 in male ; A. 9. Lat. 1. 25 ; depth 3^ at origin of anal. 

 Rather short and deep. Origin of dorsal in female over end of anal. Eye 

 large, ahout 3 in head. Teeth in broad bands, all pointed. Dorsal of the 

 female low, last but one ray of the male produced, reaching to near middle of 

 caudal. Margins of the scales, especially those of the back, dark. A well- 

 defined black spot at base of caudal, rounded forward, truncated behind. 

 Fins unspotted. 



Male with traces of about 8 dark vertical lines on body ; caudal spot mar- 

 gined with white (blue in life?) behind, its upper angle continuous with a 

 black crescent on the caudal behind the white border. A dark streak on the 

 caudal upward and backward from near the middle of the crescent. Mem- 

 branes of the dorsal dotted with black. 



Types: One male (Santarem — D. B. Meinot) ; two females (Para); three 

 females and two males (Para — H. H. Smith) ; ten females and five males (loc. 

 doubtful, probably Para). 



To Dr. J. C. Branner, of the Stanford University, for some years 

 an associate of Hartt in Brazil. 



RiTUliis urophthalmus GUnther. 

 Rivuius poeyi Steindachner. 



Many specimens from Para. 



Orestias agassizii C. & V. One specimen. Lake Titicaca. 

 Orestias pentlandi C. & V. One specimen. Lake Titicaca. 

 AlialJleps anableps (L.). One specimen. Para. 



Potamorrliapliis guianensis (Schomburgk). Nine specimens (No. 

 1610). Brazil. 



Caranx latus Agassiz. Two specimens. Braret and Pernambuco. 



Caranx llippos (Linnaeus). Two specimens. Braret. 



Nomeiis gronovii (Grmelin). Five specimens. Rocky pools at Panama. 



