OATOSTOUID^. — CIX. 319 



proposed for E. melamps. 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 Suckees. 



= Moxostoma, Agassiz (not of Raf.) 



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



1. E. sucetta, (Lac.) Jprdan. Ceeek Fish. Chub 

 SucEEB. Head 4 to 44- in length; depth 3f, 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. [^. dblongvis, (Mit.) 

 Jor.] 



6. HYPENTELIUM, Rafinesque. Cbawl- a -Bottoms. 



= Sylomyzon, Ag. 

 1. H. nigricans, (LeS.) Jordan. Stone Rollbe. Hoo 

 SucKEE. "Mud Suckee." 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. CATOSTOISUS, LeSueur. Fine-Scaled Suokbes, 



> Aconvus and Minomus, Grd. 

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

 {p&Mda^ylm, Kaf.) 



