1906.] 



NATURAL SCIENCES OF PHILADELPHIA. 



481 



ured from tip of upper jaw. Body greatly compressed and edges, 

 except rounded upper and lower siu-faces of caudal peduncle, with a 

 slight median ridge. Head a little robust, compressed, and becom- 

 ing a little constricted below. Snout broadly convex. No palatine 

 teeth, others as in Astyanax. Tongue a little long, not free. Inter- 



Stethaprion erijthrops Cope. 



orbital space broad and convex. Gill-opening forward nearly opposite 

 front of eye. Rakers 13 + 14, lanceolate, and a little less than pupil. 

 Filaments 2 in eye. Tubes in lateral hne simple. Vent close in front 

 of anal. Color in alcohol pale brownish, back a httle darker, and body 

 more or less with brassy-silvery reflections. A dull leaden and pale 

 streak along posterior or straight portion of lateral line. Fins all dull 



