HOG SUCKER. 819 



Diagnosis. — This is the only Sucker in'" Ohio having 66 to 70 scales in 

 lateral line. 



Habits. — This species is the most common of the Suckers, swarming in 

 every pond and stream in Ohio, and is the one to which the name Sucker 

 primarily belongs. It varies much in size, color and form in the differ- 

 ent streams. Its flesh is soft and poor, and of little value for food. It 

 bites at a small hook baited with a worn, and is one of numerous tribe 

 of boy's fish, which may be found on every urchin's string. , 



40. Catostomos nigricans LeSueur. 



Ilog^ Sucker; Hog: mullet; Won Molly; Crawl-a-bottom ; Stone 

 Boiler; Stone Toter; Stone liiig^g^er ; Hammer-head; Blud Sucker. 



a. Subspecies nigricans. 



Cotoatomus nigricans, LeSueuk, Jonrn. Aoad. Nat. Sci. Phil , 1817, 102 — DeKay, New 

 York Fauna, part It, Fishes, 1842, 202. — Cuviee and Valenciennes, Hist. Nat. des 

 Poiss , xvii, 1844, 453 — Kirtland, Bost. Journ. Nat. Hist., v, 1845, 272.— Stoeee, 

 Synopsis, 1846, 421.— Cope, Journ. Aoad. Nat. Sci. Phila , 18(18, 236 ; Proc Am. Philos. 

 Soc. Phila., 1870, 468.— Gcntheb, Cat Fishes Brit. Mus., vii, 1868, 17.— Uhlee 

 and LUGGEE, Pishes of Maryland, 1876, 138. — JoEDOsr, Ann. Lye. Nat. Hist N. Y, 

 xi, 1877, 345; Bull. U. S. Nat. Mas., xii, 1878, 162. 



Cotostomus nigrans {sic), Kietland, Efpt. Zool. Ohio, 183S, 168. 



Hylomyzon nigricans, kOASS^z, Am. JnuTn. Sci. Arts, xix, 1855, 205. — Pctnam, Bull. Mas. 

 Comp. Zool., 1863, 10.— Jordan, Fishes of Ind., 1875, 221. 



Hypenieltum nigricans, Joedan, Bull. Buffalo Soc. Nat. Hist., 1876, 95 ; Man. Vert., 1876, 

 294 ; 2d Ed , 1878.— Nelson, Bull. No. 1, Ills. Mus. Nat Hist., 187C, 48.— Joedan and 

 CoPELAND, Check List, 1876, 156.— Jordan and Gilbbet, in Klippart'sEept., 1876, 53. 



Caiostomiis maeulosus, LeSueor, Journ. Acad. Nat. .Sci. Phila , 1817, 103. — DeKay, New 

 York Fauna, part iv, Fishes, 1842, 203.— Cdvier and Valenciennes, Hist. Nat. des 

 Poiss., 1844, 454.— Stoeee, Synopsis, 1846, 422,— Uhler and Lugger, Fishes of 

 Maryland, 1876, 139. 



Exoglossum macropUrum, Rafinesque, Journ. Acad. Nat. Sci , Phila., 1817, 420.— Cuvier 

 and Valenciennes, xvii, 1844, 486.— Stoekr, Synopsis, lf'46, 428. 



Sypentelium macropterum, Rafinesque, Ich. Oh., 1820, p. 68.— Kietland, Rept. Zool. 

 Ohio, 1838, 168 



Caioslomus xanthopm, Rafinesque, loh. Ohio., 1820, 57. 



? Catostomm f megastomus, Rafinesque, loh. Oh., 1820, 59. (Most likely mythical.) 



Catostomus planiceps, Cuvier and Valenciennes, Hist. Nat. des Polssons, xvii, 1844, 450, 

 pi. 516. — Stoeee, Synopsis, 1846, 426. 



aa. Subspecies etowamis. 

 Catostomus nigricans, var. etowanvs, Joedan, Ann. Lye Nat. Hist. N. Y., xi, 1877, 345. 



Description. — Body stout and heavy in front, tapering off rapidly from the shoulders 

 to the tail, nearly cylindrical behind ; head quadrangular, broad and flat above, with 

 vertical sides ; the Interohltal space transversely concave ; frontal bone thick, broad 

 and short ; fontanelle short and rather small ; mouth large, the upper lip very thick, 



