1914.] 



NATURAL SCIENCES OF PHILADELPHIA. 



281 



Crenicichla pterogramma sp. nov. Fig. 20. 



Head 2f ; depth 4|; D. XVIII, iii, 11, i; A. Ill, 10, i; P. i, 15; 

 V. I, 5; scales about 60 in median lateral series to caudal base, and 

 about 6 distinct on latter; 23 scales in upper branch of 1. 1.; 11 scales 

 in lower branch of 1. 1. before caudal base, and 2 more on latter; 

 8 scales between origin of spinous dorsal and 1. 1.; 4 scales between 

 origin of rayed dorsal and upper 1. 1.; 12 scales in vertical series 

 between origin of spinous anal and upper 11.; 19 predorsal scales; 

 head width 2j in its length; head depth at occiput 2; mandil^le 2; 

 last dorsal spine 3; seventh branched dorsal ray If; third anal 

 spine 4; seventh branched anal ray 1|; least depth of caudal peduncle 

 3; caudal 1; pectoral If; ventral 2; ventral spine 3f ; snout 3| in 

 head, measured from upper jaw tip; eye 5; maxillary 2f; inter- 

 orbital 4. 



Fig. 20. — Crenicichla -pterogramma Fowler. (Type.) 



Body elongate, compressed, rather slender, deepest about midway 

 in depressed ventral length, and edges all convex. Caudal peduncle 

 well compressed, length about f its least depth. 



Head large, compressed, conic, upper profile straight from snout 

 tip nearly to ^spinous dorsal origin, lower profile similar, convex sides 

 not constricted above or below. Snout broad, rather depressed, 

 surface convex, length about | its basal width. Ej-e large, rounded, 

 close to upper profile, its centre near first f in head length as measured 

 from snout tip. Eyelids free, not adipose-like. Pupil large, circular. 

 Mouth large, wide, with horizontal commissure. Premaxillary 

 protractile. ]\Iaxillary rather large, reaches back little inclined till 

 slightly past front of eye, though not quite opposite front edge of 

 pupil, received below preorbital. Lips fleshy, rather broadly folded 



