BIG-MOUTH BUFFALO. 807 



28. BuBALioHTHYS URUS Agassiz. 



Big-monthed Buffalo; Black Buffalo; ]TIons:rel Buffalo. 



t? Amblodm niger, RAPiNEtQUE, Journal de Physique, Phila., 1818, 421. (Entirely un- 

 recognizable.) 



f? Caiostomus niger, Eapinksqub, Ichth. Oh., 1820, 50. (Unrecognizable ; more likely 

 Cyeleptua elongatus.) 



Buialiohthye niger, Agassiz, Am. Journ Sci. Arts, 2d series, xix, 1855, 195. — Jordan, 

 Fishes of Ind., 222, 1875 ; Ball. Bnflalo Soc. Nat. Hist , 1876, 95 ; Man. Vert., 1876, 

 298.— Nelson^, Bull. No. 1, Ills. Mug. Nat. Hist , 1876, 50.— Jordan and Copbland, 

 Check List, 1876, 158.— Jordan, Proc. Acad. Nat. Sci., Phila., 1877, 75.— Jordan 

 and Gilbert, in Klippart's Kept., 1876, 53.— Jordan, Ball. U. S. Nat. Mas., ix, 1877, 

 34 ; Man. Vert., 2d Ed., 328. 



Carpiodes urus, Agassiz, Am. Journ. Soi. Arts, 1854, 355. 



Bubalichthys urus, Agassiz, Am. Journ. Soi. Arts, xix, 1855, 193. — Putnam, Ball. Mns. 

 Comp Zool, 1863, 10,— Jordan, Fishes of Ind., 1875, 212; Bull. U. S. Nat. Mas., xii, 

 1878, 209.— Jordan and Copeland, Check List, 1876, 158. 



Buialichthys ionasua, Agassiz, Am. Journ. Sci. Arts, 2a series, xix, 1855, 195. — Jordan 

 and Copeland, Check List, 1876, 158. 



Deaeripiion. — Body much less elevated and less compressed than ia the preceding, the 

 back not at all carinated ; axis of body aboye ventrals about at the lateral line, acd but 

 very little farther from the dorsal outline than from the ventral ; depth 3 to 4J in length ; 

 head very stout, strongly transversely ojuvex, thicker, larger, and leas pointed than in 

 the next, about four iti length ; eye aboat equal to snout, 5i in head, much smaller than 

 B. bubalus ; month large, considerably oblique, opening well forward ; mandible longer 

 than eye ; dorsal fin lower and less rapidly depressed than in the next, the longest ray 

 scarcely half the length of the base of the fin; anal fin rounded, its rays not rapidly 

 shortened, the middle ones not much shorter than the longest ; colors very dark ; fins 

 all black ; scales 8-41-7 ; dorsal 30 ; anal 10. 



Habitat, Mississippi Valley, in all the larger streams. 



Diagnosis. — From the other species of this genus, B. urus may be known 

 by the larger mouth, and the less elevated and compresied body. Its 

 colors are darker than those of any other of the Buflfalo-fisheB. 



Habits. — This species occurs in the Ohio River and its larger tributaries, 

 but is rather less abundant than either the preceding or the next. It 

 reaches a considerable size, and is of some value as a food fish. 



29. Bubalichthys bubalus Agassiz. 



Buffalo-flsh; Small-moutlied Buffalo; Hig'h-back.ed Buffalo. 



Catostomuabuialua, Kirtland, Kept. Zool. Ohio, 1838, 163; Boston Journ. Nat. Hist., v, 



1845, 266.— Storer, Synopsis, 1846, 434. (Not of Eafinesque). 

 Bubalichthya bubalus, Agassiz, Am. Journ. Soi. Arts, 2d series, xix, 1855, 195. — Jordan, 



Fishes of Ind., 1875, 222 ; Proc. Acad. Nat Soi. Phila , 1877, 75 ; Bull. U. S. Nat. 



Mu8., xii, 1878, 20C.— Jordan and Copeland, Check List, 1876, 158. — Jordan and 



Gilbert, in Klippart's Kept., 1877, 53. 



