Jordan and Ever mann. Fishes of North America. 1945 



caudal peduncle about as wide as length of snout, head broadly rounded 

 at snout as viewed from above; mouth large, the maxillary reaching to 

 the posterior margin of pupil; bauds of palatine teeth variable in speci- 

 mens from different localities, varying from a moderate band to a wide one ; 

 interorbital equal to width of eye; preopercular spine rather sharp and 

 long. Pectorals reaching to front of anal ; ventrals not reaching to vent ; 

 dorsals slightly connected at base. Skin prickly or more or less smooth, 

 the prickles, when developed, small, crowded, and flexible. Vent nearer 

 base of caudal than tip of snout. Color grayish olive, mottled with 

 darker; ventrals light, anal light or slightly dusky; other fins crossed 

 with wavy lines of light and dark. Streams of the Coast Range in 

 California south to Point Concepcion, very common; the back and sides 

 usually closely prickly (parvus), but the skin often wholly or partly smooth 

 (yulosus}, the smooth specimens usually with axillary prickles ; the prickly 

 form more common coastwise, the other perhaps more abundant in streams 

 of the interior, the two not distinguishable by any permanent character. 

 Here described from specimens from San Francisquito Creek, Santa Clara 

 County, California, 3 to 7 inches in length, ((julosus, big-mouthed.) 



Cottopsis gulosus, GIRARD, Proc. Ac. Nat. Sci. Phila. 1854, 129, San Mateo Creek * (Coll. R. 



D. Cutts. Type, No. 290, U. S. Nat. MUH.) ; San Joaquin Rivev (Coll. Dr. Heermann, 



No. 291, specimens prickly in axils only); GIRARD, U. S. Pac. R. R. Surv.,x, Fish., 53, 



1858. 



Cottopsis parvus, GIRARD, Proc. Ac. Nat. Sci. Phila. 1854, 54, Monterey, Presidio, Fort 



Reading, Petaluma; prickly specimens. 

 Cottus semiscabra centroplcura, EIGENMANN & EIGENMANN, West Amer. Scientist, Vol. 



vi, No. 49, November, 1889, 149, Allen Springs, Lake Co., Cal. (Coll. D. Cleveland) ; 



specimens with sides prickly. 

 Centridermichthys gulosus, GUNTHER, Cat., U, 170. 

 TTranidea gulosa, JORDAN & GILBERT, Synopsis, 695, 1883. 



2316. COTTUS EYERMANNI, Gilbert. 



Head 3.f in length ; depth 5 ; depth of caudal peduncle 2f in greatest 

 dept h. D. VII, 21 ; A. 18; P. 16; V. 1, 4. Head small, depressed, narrowing 

 rjipidly forward, the snout more acutely rounded than in C. punctulatus. 

 Mouth with distinct lateral cleft, the maxillary reaching a vertical 

 immediately in advance of pupil, 2| in head. Mandible slightly pro- 

 truding. Teeth in narrow bands on jaws, vomer, and palatines, the 

 latter very weak, apparently concealed in part beneath the skin. Total 

 iuterorbital width about diameter of eye, shallowly concave ; occipital 

 area flat or gently convex. Eye small, 1 in sngut, 5 in head. Pores on 

 head unusually large, the most conspicuous occurring on suborbital ring, 

 along mandible and preopercle, and in a horizontal line above opercle; 

 3 pores form a straight transverse line behind the orbit ; a short nasal 

 tube ; upper preopercular spine represented by a short triangular process, 

 the margin of the bone below it being smoothly rounded. Spinous dorsal 

 short and comparatively very high, the longest spine slightly more than 



* The young individual from Upper Pitt River (Coll. Dr. J. S. dewberry), mentioned by 

 Dr. Girard, probably belongs to Oottus ihasta. 



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