262 MEMOIRS OF THE CARNEGIE MUSEUM 



Curimatella Eigenmanii and Eigcnmann. 

 Curimatella Eigenmann and Eigenmann, Ann. N. Y. Acad. Sci., IV, 1889, 7. 



Type, Curimatus lepidurus Eigenmann and Eigenmann. 



Teeth none; lateral line complete; caudal lobe densely scaled; narrow margin 

 of the broad tongue free. 



120. Curimatella alburna (Muller and Troschel). 

 Anodus alburnus Muller and Troschel, Horse Ichth., I and II, 1845, 26, pi. 4, 



fig. 3 (Lake Amucu, Brit. Guiana); in Schomburgk, Reisen, III, 1848, 633 



(Lake Amucu). 

 Curimatus alburnus Kner, "Familie der Characinen," i, 1859, 8 (Rio Guapore, 



Matto Grosso). — Steindachner, " Ichthyologische Beitrage," v, 1876, 338 



(Teffe); "Flussfische Slidamerika's," ii, 1881, 36 (Amazon). — Eigenmann and 



Eigenmann, Ann. N. Y. Acad. Sci., IV, 1889, 10 (Surinam; Coary; Lake 



Hyavary; Tonantins); Proc. U. S. Nat. Mus.,XIV, 1891, 46.— ? Boulenger, 



Trans. Zool. Soc. London, XIV, 1896, 34 (Descalvados). — Pellegrin, Bull. 



Mus. d'Hist. Nat., V, 1899, 157 (Apure).— Eigenmann, Ann. Carnegie Mus., 



IV, 1907, 1124 (Bahia Negra). 

 Curimatella alburna Eigenmann, Repts. Princeton Univ. Exp. Patagonia, III, 1910, 



420. 



Seven specimens, 90-115 mm. Rupununi. (C. M. Cat. No. 2105a-d; I. U. 

 Cat, No. 12289.) 



Eighteen specimens, 55-65 mm. Twoca Pan. (C. M. Cat, No. 2106a-d; 

 I. U. Cat. No. 12290.) 



Head 3.4-3.66; depth 2.66-2.75; D. 11 or 12; A. 9 or 10; scales 5-35 to 

 38-5; eye 1 in snout, 3.5 in head, 1.5-2 in interorbital. 



Stout; ventral profile regularly arched, dorsal profile rather steep in front, 

 with an angle at the origin of dorsal; preventral area flat, with a median series 

 of scales and blunt lateral keels; postventral area with a median and two lateral 

 keels converging toward the anal; predorsal area bluntly keeled, with a median 

 series of scales. 



Snout broad, subtruncate mouth subterminal, the thin lower jaw included. 



Scales crenate, with two or three diverging striae, nowhere notably increased 

 or decreased on the body; caudal lobes densely covered with small scales to 

 near their tip; lateral line straight. 



Anterior dorsal and anal rays in the adult prolonged, the former reaching the 

 adipose, the latter the caudal; caudal a little more than 3 in the length, ventrals 

 not reaching the anus, pectorals not to ventrals. 



