334 FISHES. 



Form, etc., nearly of Amiurus melas; but the eyes little 

 developed; anal short, of about 19 rays. Subterranean 

 stream, tributary of Conestoga River, E. Penn. 

 Jft Anal fin small, 15 to 17 rayed. 

 g. Body short and stout. 



15. A. pullus, (DeKay) Gill. BLACK BULL -HEAD. 

 Depth 4 in length; the head flattened, nearly as broad as 

 long; mouth large; dorsal nearer adipose fin than snout; 

 A. 16 or 17; color black, white below; size small. W. 

 N. Y. to New England. 



gg. Body comparatively slender and eel-like. 



16. A. brunneus, Jordan. GREEN CAT. Body very 

 slender, elongate, the depth about 5 in length; head 

 broad and flat, about 4 in length, the width 4; the upper 

 jaw more projecting than in any other of the species 

 known; profile convex, not steep; dorsal fin very high, 

 f length of head, well forward, its spine nearer snout 

 than adipose fin; anal fin short and high, its base 5 in 

 length of body, its rays 16 to 18; pectoral spine serrated; 

 color pale olive-green; a blackish horizontal bar at base 

 of dorsal. The slenderest of the Amiuri^ abundant in 

 many Southern streams. 



3. PELODICHTHYS, Rafinesque. MUD CATS. 

 (Hopladelus, Raf.) 



1. P. olivaris, (Raf.) Gill & Jordan. MUD CAT. Body 

 very long and slender, much depressed forwards, closely 

 compressed behind; head very long and flat, tapering 

 downwards and forwards, broadly rounded in front; 

 head 3 in length, depth 6 in length; dorsal spine some- 

 what enveloped in thick skin; pectoral spine very long, 

 flattened, serrated behind; adipose fin high and long; 

 jaws thin and flat the lower always the longer; colors 



