Short-headed Redhorse 



pressed; head short, broad, flattish above; mouth moderate, the 

 lips full, the lower truncate behind; snout short, little projecting; 

 dorsal fin elevated in front, its edge much incised, its first ray 

 longer than the base of the fin and about as long as the head; 

 caudal lobes equal. Colour, silvery, with smoky shading above, 

 some of the scales blackish at their bases; caudal and anal with 

 some red; top of head, humeral bar and a broad shade across 

 dorsal fin, dusky. 



Short-headed Redhorse 



Moxostoma breviceps (Cope) 



Great Lakes and Ohio Valley, abundant in Lake Erie. This 

 species reaches a length of a foot or more. 



Head 5 to 5^; depth 3!; eye small, 5 in head; D. 12 or 13- 

 scales 6-45-5. Body deep, compressed; head small; snout short 

 and sharply conic, overhanging the very small mouth; form sug- 

 gesting that of the white-fish; caudal fin with the upper lobe fal- 

 cate and much longer than the lower, at least in the adult; dorsal 

 fin short, high, and falcate, the anterior rays i^ to \\ times base 

 of fin, the free 'border much concave; anal long, falcate, reaching 

 beyond base of caudal. Colour, silvery, the lower fins bright red. 



GENUS PLACOPHARYNX COPE 



Suckers much like Moxostoma in all respects, except that the 

 pharyngeal bones are much more developed and the teeth reduced in 

 number, those on the lower half of the bone very large, 6 to 10 in 

 number, nearly cylindric in form, being but little compressed and 

 with a broad, rounded, or flattened grinding surface; mouth larger 

 and more oblique than usual in Moxostoma, and the lips thicker. 

 Only one species known. 



Big- jawed Sucker 



Placopharynx duquesnii (Le Sueur) 



This interesting sucker reaches a length of 2 to 2^ feet and 

 is not uncommon from Michigan to Tennessee, Arkansas and 



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