314 MEMOIRS OF THE CARNEGIE MUSEUM 



Aphyodite 37 gen. no v. 

 Type, the only species, A. grammica. 

 This is an Aphyocharax with a scaled caudal. 



169. Aphyodite grammica sp. nov. (Plate XLIV, fig. 5.) 



Type, about 32 mm. Konawaruk. (Carnegie Museum Catalog of Fishes 

 No. 1882.) 



Cotypes, two specimens, 30-32 mm. Konawaruk. (I. U. Cat. No. 12162.) 



Head 4.5; depth 3.33; D. 11; A. 22; scales 4-7 + 23-3. Eye twice as long- 

 as the snout, 2.5 in the head; interorbital a little less than the eye. 



Compressed, slender. Head short, compressed, the snout small, oblique; the 

 maxillary not reaching to below the eye; cheeks small, entirely covered by the 

 suborbital; maxillary margin convex, with three scarcely perceptible teeth; each 

 premaxillary with about ten teeth. 



Scales regularly imbricate, caudal lobes scaled to near their tips. 



Adipose fin well-developed; anal emarginate; ventrals not reaching anal, 

 pectorals not to ventrals. 



Scales of the back margined with dark; a black median line; black at base of 

 ventrals and base of anal. 



Subfamily Iguanodectin^e. 

 Iguanodectes Cope. 

 Iguanodectes Cope, Proc. Acad. Nat. Sci. Phila., 1871, 260, pi. 8, fig. 1. 

 Type, Iguanodectes tenuis Cope. 

 Range : Guianas and Amazons. 



Gill-membranes united, free from the isthmus; upper jaw with two series of 

 pluricuspid incisors, the outer series consisting of a single tooth in each side. Slen- 

 der; anal long; lateral line complete. 

 One species known. 



170. Iguanodectes tenuis Cope. 



Iguanodectes tenuis Cope, Proc. Acad. Nat. Sci. Phila., 1871, 260, pi. 8, fig. 1 

 (Ambyiacu). — Eigenmann and Eigenmann, Proc. U. S. Nat. Mus., XVI, 1891, 

 54. — Eigenmann, Repts. Princeton Univ. Exp. Patagonia, III, 1910, 430. 

 One specimen, 54 mm. Wismar. (C. M. Cat. No. 1884.) 

 Fifteen specimens, 35-92 mm. Rockstone sand-bank. (C. M. Cat. No. 



1885a-d; I. U. Cat. No. 12164.) 



37 a<t>iiy, a small fish; She, born of. 



