298 MEMOIRS OF THE CARNEGIE MUSEUM 



III, 1848, 634 (Rupununi; Takutu; Rio Branco). — Kner, "Familie der 

 Characinen," i, 1859, 23 (Rio Negro and Cujaba). — Cope, Proc. Am. Philos. 

 Soc, XI, 1870, 566 (Para); XVII, 1878, 689 (Peruvian Amazon; Para; Amby- 

 iacu).— Eigenmann and Ogle, Proc. U. S. Nat. Mus., XXXIII, 1907, 7 

 (Para; Bolivar). — Eigenmann, Repts. Princeton Univ. Exp. Patagonia, III, 

 1910, 425. 

 Anostomus fasciatus Gunther, Catalogue, V, 1864, 304 (British Guiana; Caracas). 

 — Steindachner, "Flussfische Siidamerika's," iv, 1882, 12 (Huallaga).— 

 Cope, Proc. Acad. Nat. Sci. Phila., 1871, 258 (Ambyiacu). — Garman, Bull. 

 Essex Inst., XXII, 1890, 21 (Coary; Dutch Guiana; Hyamary; lea; Jose 

 Fernandez; Jutahy; Lakes Alexo, Hyavary, Saraca, Manacapuru, Manaos; 

 Obidos; Rio Puty; Sao Paolo; Serpa; Tabatinga; Teffe; Tonantins; Villa 

 Bella).— Eigenmann and Eigenmann, Proc. U. S. Nat. Mus., XIV, 1891, 50. 

 — ? Perugia, Ann. Mus. Genova, (2 a), X, 1891, 40 (Candelaria.) — Pellegrin, 

 Bull. Mus. d'Hist. Nat., V, 1899, 406 (Manaos). 

 One specimen, 141 mm. Rupununi Pan. (C. M. Cat. No. 1865a.) 

 Two specimens, 168-174 mm. Twoca Pan. (C. M. Cat. No. 1866a; I. U. 

 Cat. No. 12147.) 



Head 4.66; depth 4; D. 12; A. 10 or 11; scales 4 or 4.5-43 or 44-4; eye 1.25 

 in snout, 3.5 in head, 2 in interorbital. 



Elongate, the width a little more than half the depth. Dorsal and ventral 

 profiles nearly equally arched; a just perceptible or no depression over the eyes; 

 head broad, the mouth very small, terminal, its width equal to the eye; a regular 

 median series of scales in front of the dorsal and along the midventral line. 



Four multicuspid, black-tipped, graduated teeth on each jaw, those of the upper 

 jaw forming an open crescent. 



Dorsal obliquely rounded, its longest ray 4.33 in the length, its origin equi- 

 distant from tip of snout and origin of adipose. Caudal deeply forked, the upper 

 lobe 4.5 in the length; anal squarely truncate when open, the tip of the first rays 

 reaching far beyond the tip of the last when closed; ventrals reaching half-way 

 to anal; pectorals about half-way to second third of ventrals. 



Dark above, white or yellow below. Opercle dark; a series of four dark cross- 

 bands and a small spot at the base of the middle caudal rays; lower caudal lobe 

 margined with dark. 



Schizodontopsis Garman. 

 Schizodontopsis Garman, Bull. Essex Inst., XXII, 1890, 16 (tceniatus). 



An Anostomatine genus with the mouth small, very obliquely directed upward; 



