710 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



branes not broadly united, nearly free from isthmus. Dorsal fills well 

 .-eparated; spinous dorsal short and low, its height little more than 

 length of snout; second dorsal very large, 3 times height of first, its 

 longest rays about as long as head; anal high, half as high as second 

 doisal: pectoral long, reaching past front of anal; ventrals well devel- 

 oped; lateral line chain-like, conspicuous; skin perfectly smooth. Head 

 3; depth G. D. YII-18; A. 15; V. 1,3. L. 3 inches. Deep waters of 

 the Great Lakes. 



'iirard, Proo. Host. Soc. Nat. Hist, iv, 19, 1"C>1; Girnnl, Monogr. Cott.6.~>: Ptyonotus 



tluHiijuHiiii Gliiither, ii. 175, the uame Triglo^*!* lu-iny; MM aside oil account of the prior 

 Triylops. ) 



37O. ENOPIIRYS S \vainson. 

 (Asj>icottu8 Grd.: Clypeocottus Ayivs: Ciratocuttus Gill.) 



(S\vai::s(iu, Class. Fish. &c. 1839, 271: type Cottus cluviyer C. &, V.) 



Body short and thick, depressed anteriorly. Head very large, mailed 

 above with rugose, bony plates; a series of large, rough, bony plates 

 along lateral line; no scales. Teeth in villiform bands in jaws and on 

 vomer, none on palatines; preoperele with strong, straight spines; sub- 

 orbital stay broad, externally bony; gill-membranes joined to the isth- 

 mus, not forming a fold across it; a slit behind fourth gill. Dorsal lins 

 separate, the anterior short, not notched; anal short. Intestinal canal 

 elongate. Herbivorous, feeding chiefly on alga), (ev, on; "cr^u?, eye- 

 brow ) 



1OOI. E. bisou (Grd.) J. & G, Stone ScuJpin. 



Olivaceous above, variegaied \\ith blackish and reddish, yellowish 

 below; lins olivaceous, marked with black; ventrals pale. Snout blunt; 

 maxillary reaching beyond pupil; external bones of head rough granu- 

 l:n : imcrorbital space elevated and concave, the orbital ridge without 

 spine; suborbital sta\ covering most of cheek; a ridge extending back- 

 \\.:n!> i'rom eadi e\e, the t wo connected by a nos> ridge al occiput; the 

 ridges are large and rough, and the space between them is concave; 

 preoperele with 1 spines, the upper very long, straight and roii-li, 

 nsiialh reaching past opercle, a little more than one third head; oper- 

 cnlar rid-e very broad: subopercle with 1' diverging si>ines; a single 

 s: i ies of large, rough, granular plates along sides, iVom opercle to base 

 of caudal, the plates wit hoiit keel >r s|>ine and growing smaller behind; 

 spinon, dor>al small, much lower than soft rays; anal short. Head 2; 

 depth 4. D. Vlll-ll'; A. '.. L. ll' inches. San Francisco to Alaska; 



