442 PROCEEDINGS OF THE ACADEMY OF [Oct., 



simple. Color in alcohol brown, abdomen and lower surface of head 

 paler, especially that of muzzle. Upper surface of head brown. 

 Dorsal, anal and ventral dusky-brown, latter deepest. Caudal, ex- 

 cept dusky-brown median rays, pale brownish. Pectoral pale brown- 

 ish. Lips brownish. Iris silvered brown. Length 2^^ inches 

 (caudal damaged). Type. 



Cope states concerning the scales "transverse (above 1. line) 16," 

 which is surely wrong as he already had stated ' 'scales large, 1. series 6 

 at ventrals." 



PELLEGRININA gen. nov. 

 Type Pellegrinina heterolepis sp. nov. 



This genus differs from Alestes, Brachyalestes and Brycinus in the 

 short anal basis and large dorsal scales. 



(Named for Dr. J. Pellegrin, of the Museum of Natural History, 

 Paris, author of many important contributions to Ichthyology.) 



Pellegrinina heterolepis sp. nov. Fig. 39. 



Head 3; depth 34; D. iii, 10; A. iii, 9, i; P. ii, 15 ;V. ii, 8; scales 

 about 29? (squamation damaged) in lateral line to base of caudal, and 

 several more on latter; 4 scales between origin of dorsal and lateral 

 line; 3 scales between origin of adipose fin and lateral line; 2 scales 

 between base of ventral and lateral line; 2 scales between origin of 

 anal and lateral line; 9 scales before dorsal; width of head 2 in its 

 length; depth of head over posterior margin of orbit If; snout 3^; eye 

 3f ; maxillary 3; mandible 2f ; interorbital space 2f ; third dorsal ray 

 H; third anal ray If; least depth of caudal peduncle 3; pectoral 1^; 

 ventral 1|. 



Body elongate, rather slender, well compressed, profiles similarly and 

 slightly convex with greatest depth about middle of depressed pectoral. 

 Predorsal region with a very obsolete median keel. Breast flattened, 

 and preventral region otherwise similar to predorsal. Postventral 

 region with a median obsolete keel, also postanal. Postdorsal region 

 rounded, keel not evident. Caudal peduncle small, well compressed, 

 and its length a little less than least depth. 



Head elongate, broad above, sides flattened and becoming some- 

 what constricted below, profiles similar. Snout broad, rounded when 

 viewed from above. Eye large, circular, anterior and high. Jaws 

 large, about even. Maxillary rather small, narrow, reaching a little 

 past front of orbit though not to front rim of pupil. Teeth in upper 

 jaw triserial, outer series 17, slender and tridentate, and second series 



