CATOSTOMID^EJ. CIX. 319 



proposed for E. melanops. Great Lakes, Ohio Valley 

 and South, abundant; one of our handsomest suckers, 

 strangely overlooked by recent writers. This and the 

 next, unlike most of our suckers, are very hardy in the 

 Aquarium. 



5. ERIMYZON, Jordan. CHUB SUCKERS. 



= Moxostoma^ Agassiz (not of Raf.) 

 * No stripes along the rows of scales, body rather short and deep. 



1. E. sucetta, (Lac.) Jordan. CREEK FISH. CHUB 

 SUCKER. Head 4 to 4^- in length; depth 2f, in adult; 

 eye 5 in head; scales crowded, deeper than long; no trace 

 of lateral line; dusky above, brassy on sides and below; 

 very variable; young much less compressed, with black 

 bands or bars, and pale lateral and vertebral streaks; 

 spring males with six tubercles on head; D. 1, 11; lat. 1. 40. 

 New England, S. and W., abundant. \E. oblongus^ (Mit.) 

 Jor.] 



6. HYPENTELIUM, Rafinesque. CRAWL- A -BOTTOMS. 



= Hylomyzon, Ag. 



1. H. nigricans, (LeS.) Jordan. STOXE ROLLER. HOG 

 SUCKER. " MUD SUCKER." Depth 4f in length; head 

 4; depth of head f its length; eyes small, very high up 

 and far back ; lower fins very large ; pectoral nearly as 

 long as head; brownish, often beautifully marbled; D. 

 I, 11; A. 8; lat. 1. 52. Lakes and streams from N. Y., 

 S. and W., abundant; one of our most singular fishes. 

 It frequents clear streams and rapids, and it is not at all 

 a " mud fish," as some writers seem to suppose. 



7. CATOSTOMUS, LeSueur. FINE-SCALED SUCKERS. 



> Acomus and Minomus, Grd. 



* Lateral line with 60 to 65 scales- snout comparatively short; 

 (Decadactylus, Raf.) 



