140 Bulletin 4/, United States National Museutn. 



Pimelodusnalalli, LeSueuk. Mem. Mus., v., 154, 1819, North America. 



Ammntsnalalix, GiiNTilER, V, 101, 1864 ; Jordan, I. c, SO, 1877. 



Silm-us liridiis, yur. /meatus, and Silurus cupreus, Rafinesque, Qnart. Jour. Sci. London, 1S20, 48, 

 51, Ohio River. 



Pimeloiliis /e/iiiH.s el antonicnsU:, GiRARD, Pac. R. R. Expl., x. 209, 1858, Canadian and San An- 

 tonio rivers, Texas. (Type, Nos. 924 and 923. ) 



Pimelodvs catii.1, Girard, Proc. Ac. Nat. Sci. Phila., 1859, 159, Aux Plaines, Illinois. 



Pimelodris mpremdes, Girard, /. c, 1859, 159, Aux Plaines, Illinois. (Tyjie, No. 1497.) 



Piiiu'lodiis cntiosus, Richahdson, Fauna Bor. Amor., in, 132, 1836, Lake Huron. 



PimeloditscKpreun, Rafinesque, Ichth. Oh., 65, 1820, Ohio River. 



Aminnis Halahs, .Ioudan & Gilbert, Syuopsis, 105,1883. 



Amiimis holli, CopK, Bull V. S. Nat. Mus., xx, 35, 1880, Little Wichita River, Texas. 



Ameiiirus holli, .Iouuan & Giliiert, Synopsis, 881, 1883 ; this form has rather longer spines than 

 usual iu natalis, approaching erebennus. 



Amiurius vatalis analis, JORDAN, I. c, 1877,81, Arkansas River. (Type, No. 31088.) 



•210. AMEIURHS VULGARIS, (Thompson). 

 Anal rays 20. Body moderately elongate ; depth 4^ to 5 in length; head 

 3i to 4. Barbels long ; mouth wide ; head longer than broad, rather nar- 

 rowed forward ; profile rather steep, evenly convex ; dorsal region more or 

 less elevated. Lower jaw more or less distinctly projecting; in other 

 respects scarcely distinct from A. nehulosus, with which it may inter- 

 grade. Dark reddish brown or blackish. L. 18 inches. Vermont to Min- 

 nesota and Illinois, chiefly northward ; not rare, {luilgaris, common, 

 which is not true in most of its range.) 



Pimelodm v^dgaris, Thomp.son, Hist. Vermont, 138, 1842, Lake Champlain. 



Pinielodus delcayl, Girard, Proc. Ac. Nat. Sci. Phila., 1859, 100, Oswego, N. Y. (Type, No. 1513. ) 



Paiielndnaailvrm, Girard, Pac. R. R. Expl., .\, 210, 1858, L.Amelia, Minnesota. (Type, No. 904.) 



Amuirus lelurnii, Jordan, I. c, 1877, 88. 



Amiurns vnlguri.<:, Jordan & GILBERT, Synopsis, 105,1883. 



217. AMEIURUS NEBULOSIS, (Le Sueur). 

 (Horned Pout; Common Bullhead; Small Catfish; Schuylkill Cat; Sacramento Cat.) 



Body rather elongate ; depth 4 to 4i in length. Anal fin usually with 

 21 or 22 rays, its base 4 iu body ; dorsal fin inserted rather nearer adipose 

 fin than end of snout. Upper jaw usually distinctly longer than lower. 

 Humeral process more than i the length of pectoral spine, which is rather 

 long. Color dark yellowish brown, more or less clouded, sometimes yel- 

 lowish, sometimes nearly black. L. 18 inches. Great Lakes, Ohio Valley, 

 eastward to Maine, southwestward to Texas, and southeastward to 

 Florida. The common bullhead, or Horned Pout of the North and East, 

 abundant in every pond and stream; also introduced about 1877 into the 

 Humboldt, Sacramento, San Joaquin and Gila rivers, where it is now 

 excessively abundant. Variable, (nebulosus, olonded.) 



Pimelodhs nehidosiis, Le Sueur, Mem. Mus., v. 149, 1819, Lake Ontario. 



Pimelodu.'s alrariif, De Kat, N. Y. Fauna: Fish., 185, 1842, Wappingers Creek, Dutchess 

 County, N. Y. 



dd. Colors dark, black or greenish. Great Lake region, north and east. 



ccenosus. 

 cc. Anal 26; rays low, its base 3V^ in body; spines weak; nape more or less swollen 

 and elevated. Alabama River to Texas. antomen.sis. 



ccc. Anal 27, its base 3J^ in lenstli, its r.ays high, more than }4 head; spines strong, 

 napo not swollen. Little Red River, Ark. analis. 



aa. Dorsal spine inserted nearer adipose fin than tip of snout, the posterior part of body thick- 

 ened and shortened; .jaws subequal. Great Lakes to North Carolina and south. 



NATALIS. 



