CHIEODOISr.— BEAMOCHAEAX. 173 



1. Chirodon compressus. 



Hemigrammus compressus, Meek, Publ. Columbian Mus., Zool. v. 1904, p. 87, fig. 25. 



Depth of body 2i in the length, length of head 3|. Snout shorter than eye, the diameter of which is 2| in 

 the length of head and greater than the interorbital width. Maxillary extending a little beyond the 

 vertical from the anterior edge of eye ; 5 maxillary teeth. About 12 gill-rakers on the lower part 

 of the anterior arch. About 45 scales in a longitudinal series ; lateral line on only .5 or 6 scales. 

 Dorsal 10-11 ; origin behind the ventrals. Anal 25-27, origin below middle or posterior part of 

 dorsal : anterior part of fin deep, pointed ; free edge emarginate. Pectoral reaching the ventrals, which 

 extend beyond the origin of anal. Caudal forked. Olivaceous ; a dark spot on the basal part of the 

 dorsal fin. 



Ilah. Mexico, Rio Papaloapam i (Meek). 



Here described from two specimens, 45 mm. in total length. 



7. GASTROPELECUS. 



Gasiropelectis, Pall. Spic. Zool. fasc. 8, p. 50 (1769) ; Giinth. Cat. Fish. v. p. 31.2 (1864) ; Jord. & 

 Evevm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 337. 



About six species from tropical South America and one from Panama. 



1. Gastropelecus maculatus. 



Gastropelems maculatus, Steind. Denkschr. Ak. Wien, xli. 1879, p. 168, t. 1, fig. 4^; Jord. & 



Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 338 \ 

 Dorsal 11. Anal 36 or 37. 31 or 32 scales in a longitudinal series. 



Hab. Panama, Eio Mamoni i. 

 Length about 80 mm. 



8. BRAMOCHARAX. 



Bramocharax, Gill, Proc. Ac. Pliilad. 1877, p. 189 ; Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 

 1896, p. 338. 



Two species from Nicaragua. 



1. Bramocharax bransfordi. 



Bramocharax bransfordi, Gill, Proc. Ac. Philad. 1877, p. 190 ' ; Jord. & Everm. Bull. U.S. Nat. Mus. 



xlvii. 1896, p. 339"; Eigenmana & Ogle, Proc. U.S. Nat. Mus. xxxiii. 1907, p. 32, fig. 6. 

 Dorsal 11. Anal 28. Depth of body 2f in the length. 



JIah. Lake Nicaragua i. 



Eigenmann and Ogle's figure of this species shows that the teeth are not conical, 

 but notched, as in Brycon, &c. The produced pointed snout and tlie canine-like 

 anterior teeth distinguish Bramocharax from Chirodon. 



