_ BIG-MOUTH BUFFALO. | 807 
28. BuBALICHTHYs URUS Agassiz. 
Big-emouthed Buffalo; Black Buffalo; Mongrel Buffalo. 
2? Amblodon niger, RAFINESQUE, Journal de Physique, Phila., 1818, 421. (Entirely un- 
recognizable. ) 
2? Catostomus niger, RAFINESQUE, Ichth. Oh., 1820, 56. (Unrecognizable; more likely 
Cycleptus elongatus. ) 
Bubalichthys niger, AGassiz, Am. Journ Sci. Arts, 2d series, xix, 1855, 195—JORDAN, 
Fishes of Ind., 222, 1875; Ball. Buffalo Soc. Nat. Hist , 1876, 95; Man. Vert., 1876, 
298.—NELSON, Bull. No. 1, Ills. Mus. Nat. Hist, 1876, 50.—JoRDAN and CopPgsLAND, 
Check List, 1876, 158—Jorpan, Proc, Acad. Nat. Sci, Phila., 1877, 75.—JoRDAN 
and GILBERT, in Klippart’s Rept., 1876, 53.—JORDAN, Bull. U. S. Nat. Mus., ix, 1877, 
34; Man. Vert., 2d Ed., 323. 
Carpiodes urus, AGASSIZ, Am. Journ. Sci. Arts, 1854, 355. 
Bubalichthys urus, AGASSIZ, Am. Journ. Sei. Arts, xix, 1855, 193.—PuTNAM, Bull. Mus. 
Comp. Zool, 1863, 10,— JORDAN, Fishes of Ind., 1875, 222; Bull. U. S. Nat. Mus., xii, 
1878, 209.— JORDAN and COPELAND, Check List, 1876, 158. 
Bubalichthys bonasus, AGassiz, Am. Journ. Sci. Arts, 2a series, xix, 1855, 195.—JORDAN 
and COPELAND, Check List, 1876, 158. 
Description —Body much less elevated and less compressed than in the preceding, the 
back not at all carinated; axis of body above ventrals about at the lateral line, and but 
very little farther from the dorsal outline than from the ventral ; depth 3 to 44 in length; 
head very stout, strongly transversely convex, thicker, larger, and leas pointed than in 
the next, about four in length; eye about equal to snout, 54 in head, much smaller than 
B. bubalus ; mouth 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.—F rom the other species of this genus, B. urus may be known 
by the larger mouth, and the less elevated and compressed body. Its 
colors are darker than those of any other of the Buffalo-fishes. 
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-fish; Small-mouthed Buffalo; Migh-backed Buffalo. 
Catostomus bubalus, KiRTLAND, Rept. Zool. Ohio, 1838, 168; Boston Journ. Nat. Hist., v, 
1845, 266.—STORER, Synopsis, 1846, 424. (Not of Rafinesque). 
Bubalichthys bubalus, AGassiZ, Am. Journ Sci. Arts, 2d series, xix, 1855, 195.—JoRDAN, 
Fishes of Ind., 1875, 222; Proc. Acad. Nat Sci. Phila, 1877, 75; Bull. U.S. Nat. 
Mus., xii, 1878, 206. Rae and COPELAND, Check List, 1876, 158. —JORDAN and 
GILBERT, in Klippart’s Rept., 1877, 53. 
