1906.] 



NATURAL SCIENCES OF PHILADELPHIA. 



431 



FURTHER KNOWLEDGE OF SOME HETEEOGNATHOTJS FISHES. PART II. 



HY HENRY W. FOWLER. 



Astyanax stilbe (Cope). Fig. 24. 



Tetragonopterus stilbe Cope, Proc. Amer. Philos. Soc. Phila., XI, 1869-70 

 (August 19, 1870), p. 559. Type, No. 8,085, A. N. S. P. Para. 

 De Schulte Buckow. Cope, I.e., p. 566 (evidently type). 



Fig. 34. — Astyanax stilbe (Cope). 



Width of head 2 in its length ; interorbital space 2|- in head measured 

 from tip of upper jaw. Body compressed. Predorsal region with a 

 median keel, and postdorsal region rounded. Preventral region 

 rounded and postventral region trenchant. Caudal peduncle com- 

 pressed. Head compressed. Snout moderately broad and surface 

 convex. Rami of mandible not elevated inside mouth. Teeth in 

 jaws mostly quindentate, 4 on each side in an outer series above, and 



