EIGENMANN: the freshwater fishes of BRITISH GUIANA 335 



the vertical from the first dorsal rays, and is continued forward by a few large scat- 

 tered chromatophores. The black caudal spot usually extends nearly or entirely 

 to the end of the middle caudal rays. Scales of the back and sides above the lateral 

 stripe outlined with pigment, an olive stripe along the back. All fins somewhat 

 duskj'. Males with a cherry-red spot on the base of each caudal lobe; anterior 

 margin of anal with a white bar, broadest towards the tip, the rest of anal and the 

 base of dorsal tinged with red. Females with yellow on caudal, anal, and dorsal 

 in place of the red of the males. The white bar on the anal is lacking in females. 



192. Hemigrammus ocellifer Steindachner. (Plate XLVIII, fig. 4.) 

 Tetragonopterus ocellifer Steindachner, "Flussfische Siidamerika's," iv, 1882, 



32, pi. 7, fig. 5 (Villa Bella; Cudajas). — Eigenmann and Eigenmann, Proc. 



U. S. Nat. Mus., XIV, 1891, 54.— Ulrey, Ann. N. Y. Acad. Sci., VIII, 1895, 



286 (Amazon and Solimoes basin). 

 Hulupristis ocellifer Eigenmann, Smiths. Misc. Coll., Quarterly Issue, XLV, 1903, 



145. 

 Hemigrammus ocellifer Eigenmann, Repts. Princeton Univ. Exp. Patagonia, III, 



1910, 436. 



Thirty-three specimens, 28-44 mm. Obidos (Col. Bentos, Thayer Expedition). 

 (Mus. Comp. Zool. Cat. No. 20842, part.) 



One specimen, 38 mm. Curupira (Maj. Cotinho). (Mus. Comp. Zool. Cat. 

 No. 21017.) 



Sixteen specimens, 28-37 mm. Tabatinga (M. Bourget, Thayer Expedition). 

 (Mus. Comp. Zool. Cat. No. 20774.) 



Five specimens, 31-36 mm. Cudajas (Thayer and Bourget). (Mus. Comp. 

 Zool. Cat. No. 20969.) 



One hundred and nine specimens, 26-37 mm. Gluck Island. (C. M. Cat. 

 No. 1455a-2; I. U. Cat. No. 11910.) 



Three specimens, small, Konawaruk. (C. M. Cat. No. 1456a; I. U. Cat. No. 

 11911.) 



Four specimens, 28-29 mm. Malali. (C. M. Cat. No. 1157a-5; I. U. Cat. 

 No. 11912.) 



Humeral spot bounded in front and behind by bright bars as wide as the spot, 

 and a second, less distinct, dark bar just behind it. 



Head 3.25 to 3.5; depth 2.5 to 2.75; D. 10 or 11; A. 22 to 26; scales 5-30 to 

 33-3 to 3.5; eye 2.25 to 2.5 in head; snout littk^ more than half of ej^e; interorbital 

 about equal to eye. 



