840 



FISHES — CYPRmiD-ffi!. 



head jet black, ■with several large tubercles on the snout in spring, a dusky shade along 

 sides of the caudal peduncle ; head 4 J ; depth 4 ; D. I, 7 ; A. 7; lat. 1. 47 ; teeth 4-5 

 Length 2J inches. 



Habitat, Ohio Valley to the Upper Missouri, abundant. 



Diagnosis. — Among Ohio fish, this small species may be known at sight 

 by the short, thick head and small mouth. 



Habits. — This species is most abundant in the small and often muddy 

 brooks which flow directly into the Ohio River. It does not appear to 

 like a sandy or gravelly bottom, and as it feeds on mud and Algae, it is 

 seldom found in company with such species Ericymha and Chrosomus. 



Genus 29. HYB0RHYNCHU8. Agaasiz. 



Bytorhynchua, Agassiz, Am. Journ, Sci. Arts, 1855, 233. 

 Type, Mirmilus notatus, Eafinesque. 

 Etymology, huhos, gibbons ; rhugchos, snont. 



This genus differs from PimephaUs only in having the lateral line complete, and the 

 maxillary often provided with a rudimentary or obsolete barbel. The species are more 

 elongate than those of PimepAo!es and reach a larger size. The coloration and nuptial 

 dress is similar In the two genera. 



60. Hyborhynchds notatus (Rafinesque) Agassiz. 



Blunt-nosed minnew. 



? Minnilus netatus, Eafinksqob, loh. Oh., 1820, 47. 



Hylorhynchus notatua, Agassiz, Am. Joarn. Sci. Arts, 1855, 2-22. — Cope, Cyp. Penn., 1866, 

 392 ; Journ. Phil. Acad. Sci., 1869, 235.— Gunthbr, Cat. Fishes, vii, 182.— Jokban, 

 Bull. Buff. Acad. Sci., 1876, 94 ; Man. Vert , 2(i Ed., 1878, 268, and of writers generally. 



? Hyborhynchua superdliosus, Cope, Journ. Phila. Acad. Sci. 1869, 234. — Jokdan, Man. 

 Vert., 2d Ed., 1878, 289. (Specimens with an obsolete maxillary barbel.) 



Disaription. — Body rather elongate, not elevated, moderately compressed; head 

 moderate, the muzzle blunt and convex, top of the head depressed ; cheeks vertical ; 

 month small, inferior, horizojital; fins small, the dorsal moderate, the first ray distinct 

 and spine like in the males, slender in the females ; anal small ; caudal short ; scales 

 moderate, deep^ closely imbricated; scales in front of the dorsal small and crowded; 

 «ye moderate ; color olivaceous, little silvery, sides bluish ; a black spot on the dorsal 

 fin in front, near the base ; a dusky ahade at base of caudal ; males in spring with black 

 on the dorsal mote extended, and the head wholly black ; snout wi th about fourteen 

 4isproportioDately large tubercles.; head 4^ ; depth 5 ; D. 8 ; A. 7 ; lat. 1. 44 ; teeth 4-4. 

 Length, 4 inches. 



Habitat, Ohio Valley andOreat Lake Regions, abundant. 



Diagnosis. — The presence of a dark spot on the anterior rays of the 

 •dorsal distinguishes this plain species from all the others with long in- 

 testines or teeth 4-4. 



