Jordan and Evcrmann. — Fishes of North America. 1049 



punctulatus; in the others more or less prickles are developed, varying from 

 a few in axil of pectorals to a band covering more than ^ of the sides. 

 As this is not an unusual amount of variation, we do not consider Coitus 

 semigcaber worthy of recognition. The relations of Coitus punctulaius with 

 the eastern species have not been carefiillj' worked out, and it seems best 

 to recognize it for the j) resent as distinct. .Specimens from Green River, 

 Wyoming, and from Mink Creek, Ross Fork, and Port Neuf River, Poca- 

 tello, Idaho. The collection contains also 2 specimens from Thompson 

 Falls and 3 from Flathead Lake, which seem to be this species. By the 

 Port Hall Indians this tish is called aliwe, a word meaning horns. 



{ptmciulatus, speckled.) 



Potamocottus punctulatus, Gill, Proc. Bos. Soc. Nat. Hist. 1861, 40, Bridgers Pass, 'Wyo- 

 ming (Coll. Capt. Simijsoii) ; Gill, Iclitb. Ca]>t. Simpson ExpL, 402, 187G, witli plate. 

 Cottus punctulatus, Gilbert & Evermann, Bull. IT. S. Fish Comm. 1894, 202. 

 Uranidea punctulata, Jordan & Gilbert, Synopsis, 697, 1883. 



2320. COTTUS SEMISCABER (Cope). 

 (Rocky MorNTAix Bullhead.) 



Head 3; deptb 4i; D. VIII-17 or 18; A. 12 or 13; eye 5 in head; maxil- 

 lary 2] ; third dorsal spine 4 in head; highest dorsal rays 2*; pectoral 1^; 

 ventral nearly 2; caudal 1*. Body not much compressed, caudal peduncle 

 wide, equal to length of snout; head broad and rounded anteriorly as 

 viewed from above; month large, the maxillary reaching about to poste- 

 rior margin of eye ; band of teeth broad on jaws, vomer, and the palatines ; 

 interorbital space (bone only) narrow, not over ^ eye; preopercular spines 

 rather stout and blunt. Pectorals reaching to front of anal ; dorsals not 

 connected, scarcely meeting in some specimens; veutrals not reaching to 

 vent; last rays of soft dorsal reaching almost to base of caudal, highest 

 dorsal rays equal snout and i eye; vent much nearer tail than tip of 

 snout. Color slaty gray in spirits, with mottlings on sides which form 

 inconspicuous cross bars; pectorals, dorsals, and caudal, with wavy cross 

 lines; ventrals and anal white or sometimes dusky and mottled; a dark 

 spot on spinous dorsal posteriorly, fin edged with white. Rocky Mountain 

 region, in clear streams on 1>oth sloiies. Abundant in Colorado, northern 

 New Mexico, Wyoming, Montana, Idaho, Utah, eastern Washington, and 

 Oregon. Found in the upper basins of the Fraser, Columbia, Missouri, 

 Colorado, Platte, Arkansas, and Lake Bonneville, its eastern and northern 

 limits not well ascertained. It is subject to very great variations in color, 

 size, and roughness of skin. Most specimens are smooth, or rough only in 

 the axil. Some, especially from southern Idaho and Provo River, Utah, 

 are quite rough, some of them as rough as Coitus asper or Coitus rhotlieus. 

 These rough specimens differ in no other respect from smooth ones from 

 the same localities. The specimens here especially described are from 

 Eagle River at Gypsum, Colorado, the largest 4+ inches in length. 



Rough specimens from Provo are thus described by Jordan & Gilbert 

 (Synopsis, 695) : Head 3i; depth 4*. D. VII, 18; A. 14; V. 1,4; eye U in 

 head. Form of Coitus aspcr, but slender. Skin of top of head and entire 



