107. COTTID.E LIOCOTTUS. 711 



abundant. Eesembles Coitus hubaUs, with which it has been improp- 

 erly confounded by Dr. Giinther. 



(Jxpicottus bison Girard, Proc. Acad. Nat. Sci. Pbila. 1854, 130: Clijpeocoitiis robusius 

 Ayrcs, Proc. Cal. Acad. Nat. Sci. 1854, 12: Aspicotius bison Girard, U. S. Pac. E. K. 

 Surv. G(J. ) 



1092. E. dacorans (Pallas) J. & G. 



Greenish and reddish, marbled and spotted. Form of U. hison, the 

 head large, wider than deep or long; top of head nearly as in U. bison, 

 the ridges higher and very rough; orbital ridges elevated, continued 

 backward toward the nape, the occipital ridges sharp behind; upper 

 preopercular spine very long, rough, nearly two-thirds us long as head, 

 with strong recurved hooks or serrations on the upper edge; lower pre- 

 opercular spines strong; oi)ercle with a longitudinal rib and no dis- 

 tinct spine; lateral line with a row of rough bony scutella, each with 

 a minute central spine; skin above more or less villous or prickly, else- 

 where smooth. Isthmus wide; a slit behind last gill; vomer with teeth. 

 D. Yri-14; A. 10; C. 12; P. 17; Y. I, 3. L. G inches. Alaska and Kam- 

 tschatka. (Here described from a specimen in the British IMuseum.) 



(Cottus diceraus Pallas, Nov. Act. Petrop. 1783, 354: Cottus diccraits Ciiv. & Val. iv, 

 189: Sijuanceia cervus Tiles. M6m. Ac. St. Petersb. iii, 278: Ceratocottus diceraus Gill, 

 Proc. Acad. Nat. Sci. Phila. 1851), 1G5, aud 1881, 167: Cottus diceraus Giintlier, ii, 189.) 



1093. E. claVDger (Cuv. & Val.) Sw. 



Dark brown, with 3 or 4 vertical bands; belly white. Top of head 

 everywhere rough; two strong nasal spines; superciliary margins much 

 elevated, with a deep groove between them; 4 i)reopercular spines, the 

 upper exceedingly long and strong, extending nearly to the vertical 

 from the end of the first dorsal, serrated and coarselj' toothed on its 

 upper margin, but without antler-like processes; "occiput with a very 

 long cuneiform process on each side"; lateral line with bony plates, 

 rougher than in E. bison, each with a serrated keel and spine; skin sub- 

 villous above, with small rough warts; a series of small cutaneous ap- 

 pendages above the anal. Suborbital stay spinous; vomerine teeth 

 present; isthmus broad; slit behind last gill large. D. VI-13; A. 11; 

 V. I, 3. L. 2i inches. Bering's Sea. (Ilere described from the original 



type, in the British Museum.) 



{Cotlus clavigcr Cuv. & Val. iv, 195, 1829: Cottus cJaviger Giiutlier, ii, 1G7.) 



Syi.— I^IOCOTTUS Girard. 

 {Lciocotfus Girard, Proc. Acad. Nat. Sci. Phila, 185G, 133: type Lcioeottus hirundo Girard.) 



Body -elongate, covered with thick, smooth skin. Head compressed, 

 narrowed above, not externally bouy. Mouth small, horizontal, low ; villi- 



