104 



Family XXI. CATOSTOMIDiE. (Ths Suckers.) 



Genus 54. Placopharynx, Cope. 



Big-jawed Suckers. 



99 Placopharynx carinatus, Cope. 



This species has not actually occurred in our personal collections 

 from Illinois, but has been received by Dr. Jordan from the Illinois 

 Piiver, and is said by fishermen to be rather common in the Wabash. 

 Its resemblances to Moxostoma are so strong that it would very 

 probably be passed by collectors as belonging to that genus. 



Genus 55. Moxostoma, Raf. 

 Eed Horse. 



100. Moxostoma aureolum, Le S. 



Distribution like that of the following species, from which it is, 

 in my opinion, but doubtfully distinct. Less common in Illinois 

 than macrolepidotum. 



101. Moxostoma macrolepidotum, Le Sueur. — Common Bed Horse ; 



Mullet; White Sucker; Large-scaled Sucker. 



(Bui. II, 63 and 64; Myxostoma macrolepidotum, Myxostoma 

 velatum.) 



Very abundant everywhere in lakes, rivers, and smaller streams. 

 It inhabits Lake Michigan and the smaller lakes in Northern Illi- 

 nois, and is not less common to the southward. Where the com- 

 mon sucker is not known its name is appropriated to this species, 

 the name of "red horse" being rarely heard in Southern Ilhnois. 



102. Moxostoma carpio, Val.— Carp Mullet. "^"^ 'V** \^f^uU\^ - 1 



Said by Dr. Jordan to occur in the Great Lakes. Not positively 

 identified by me in Illinois, the common lake mullet of South Chi- 

 cago not being clearly different, to my mind, from Moxostoma ynacro- 

 lepidotum. 



Genus 56. Minytrema, Jordan. 

 Spotted Suckers. 



103. Minytrema mdanops, Raf. — Spotted Mullet ; Striped Sucker. 

 Moderately common in streams throughout the State. 



Genus 57. Ertmyzon, Jordan, 



104. Erimyzon succtta, Lac. — Creek-fish; Chub-sucker. 



Everywhere abundant in streams and lakes, ascending creeks in 

 spring. Occurs in our collections from McHenry to Union county. 



