(64) 



132. *Myxostoma anisunim (Raf.) Jor. Long-tailed Sucker. (M. V. 

 315.) 



Abundant in Ohio Eiver near Cincinnati; not yet noticed in 

 Illinois. 



138. Myxostoma velatnm (Cope) Jor.. Small-mouthed Red Horse, 

 White Nose. (M. V, 317; Teretnlus anisurus and T. velatus 1^q\- 

 son 49.^ 



Generally abundant in the larger streams. 



Genus MINYTREMA, Jordan. 



134. Minytrema melanopH (^dii.) 3 or . Spotted Sucker. (M. V. 318; 

 Erhnyzon melanops Nelson 48.) 



Grenerally abundant, especially southward. 



Genus E RIMY Z ON, Jordan. 



135. Erhnyzon sucetta (Lac.) Jord. Chub-sucker, Creek-eish. (M. 

 V. 319; Erimyzon ohlongus Nelson 48.) 



Everywhere A^ery abundant, ascending small streams in spring. 

 Union Co., Johnson Co. 



Genus CATOSTOMUS, Le Sueur. 



136. Catostomus nigricans Le S. Stone-roller, HoG Sucker, Crawl- 

 a-bottom, Hammer-head. (M. V. 319 ; Nelson 48.) 



Everywhere common, frequenting rapids and shallows in clear 

 streams. Rock R., Ogle Co.; Mackinaw Cr. 



137. Catostomus commersonii (Lac.) Jor. Common Sucker, White 

 Sucker. (M. V. 320 ; Catostomus teres Nelson 48.) 



Everywhere very abundant. 111. R., Mackinaw Cr., Pine Cr.; 

 Cache R., Union Co.; Rock R. 



138. Catostomus longirostrum Le Sueur. Red-sided Sucker, Long- 

 nosed Sucker. (M. V. 320 ; Catostomus hudsonius Nelson 48.) 



Abundant in Lake Michigan. 



Genus CYCLEPTUS, Rafinesque. 



139. Cydeptus elongatns (Le S.) Ag. Gourd-seed Sucker, Black- 

 horse, Missouri Sucker. (M. V. 320; Nelson 50.) 



In the Ohio and Mississippi Rivers, and all their larger tribu- 

 taries; not generally common, but often seined in large numbers. 

 Peoria, 111. 



