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. 

 \\\ Anal fin small, 15 to 17 rayed. 

 g. Body short and stout. 



15. A. pu//us, (DeKay) GilL BLACK BULL -HEAD. 

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

 long; mouth large; dors"al 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. GKEEN CAT. Body very 

 slender, elongate, the depth about 5-J 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 



