(62) 

 Genus PHOXINUS, Rafinesque. 



117. Phoxinus neogxus Cope. New World Minnow. (M. V. 302- 

 Nelson 47.) 



"A single specimen obtained in the Fox River at Greneva" 

 (Nelson.') Specimens also from Wisconsin River. 



Genus HEMITREMIA, Cope. 



118. Hemitremia heterodon Cope. (M. V. 303 ; Nelson 47.) 



Abundant in northern Illinois and Wisconsin. Lake Michigan ; 

 Calumet R.; Fox R.; Rock R.; Bailey's Cr., La Salle Co. This 

 species has the teeth 4-4 and should probably be referred to Al- 

 harnops. 



Genus SEMOTILUS, Rafinesque. 



119. Semotihis corjwraHs f Mitch.) Putnam. Chub, Creek Chub, 

 Horned Dace. (M. V. 304; Nelson 45.) 



Everywhere very abundant, frequenting small creeks, common- 

 est of fishes. McLean Co.; Ogle Co.; Jackson Co.j Pekin ; Effing- 

 ham; Union Co. 



Genus CERATICHTHYS, Baird. 



120. Ceratichthys hlguttatus (Kirt.) Girard. Horned Chub, Horny- 

 head, River Chub. (M. V. 305 ; Nelson 45.) 



Everywhere very abundant, frequenting the river channels more 

 than the preceding species. Rock R., Ogle Co. 



121. Ceratichthys amblops (Raf.) Girard. Big-eyed Chub. (M. V. 306.) 



Abundant in the Wabash valley. 



122. Ceratichthys dissimilis (Kirt.) Cope. Spotted Shiner. (M. V. 

 306; Nelson 45.) 



In tributaries of the Wabash and Illinois, frequenting the river 

 channels. Probably abundant. Rock R., Ogle Co. 



Genus COUESIUS, Jor., Mss. 



123. Couesius prosthemius CoT^e. Lake Chub. (M. V. 307.) 



In Lake Michigan. Specimens in the National Museum from 

 near Evanston. 



Genus RHINICHTHYS, Agassiz. 



124. Rhinichthys cataractae {G. &Y.) Jor. Long-nosed Dace. (M. V. 

 307 ; Rhinichthys nasutiis and R. maxiilosus Nelson 45.) 



In clear tributaries of Lake Michigan. Chicago. 



