G8G CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 



1O11. II. ravifroiis Lock. 



Very similar to the preceding, but with the upper surface of the head 

 more uneven, the concavity of the iuterocular area more marked, and 

 the dorsal lin with more spines. Head equalling depth, about 3 in 

 total length with caudal. D. IV, XIV-13; P. 20; V. I, 3; A. 14; Lat. 

 1. 44. L. 1C inches. Kodiak, Alaska; perhaps not distinct from the 

 preceding. 



(Lorkington, Proc. Acad. Nat. Sci. Phila. 1880, 233: ? Cottus villostis Pallas, Zoogr. 

 Ross.-Asiat. iii, 129, 1811.) 



362. ASCELICIITHYS Jordan & Gilbert. 



(Jordan & Gilbert, Proc. U. S. Nat. Mus. 1880, 264: type Ascelichthys rhodorus JOT. & 

 Gilb.) 



Body plump, fusiform, tapering backward, covered with loose smooth 

 skin; head broad, depressed, its upper surface evenly and weakly con- 

 vex; a hooked preopercular spine; no nasal spines; a supra orbital cir- 

 rus; teeth on jaws, vomer and palatines; no slit behind fourth gill; gill- 

 mcmbraues broadly united, free from the isthmus; spinous dorsal low: 

 the spines slender, almost concealed in the membrane; pectorals broad; 

 ventral Jins ictinting. Small fishes of the rock pools of the North Pacific. 

 (a, privative; <r/>>.oc, leg; <>^'>, fish.) 



1O42. A. rhodorus Jor. & Gilb. 



Dark olivaceous, sometimes with saddle-like pale blotches; lips rosy; 

 spiuous dorsal dusky, edged in life with bright crimson; other fins 

 dusky, edged with paler, the pectoral slightly barred. Head low, 

 rounded anteriorly; maxillary reaching to posterior border of eye. No 

 scales, prickles, or barbels anywhere, except a fringed cirrus over the 

 eye; preopercle with a short, simple, strongly hooked spine; spines 

 diiedrd downwards and forwards on subopercle and interopercle; lat- 

 eral line continuous. Dorsal fins connected by membrane, the spines 

 low, weak, nearly uniform; soft dorsal nearly twice as high as spiuous; 

 pectorals about reaching vent. Head 3; depth 5. D. IX-19; A. 15; 

 P. 10. L. 5 inches. Pacilic coast; Sitka to Cape Mendoeiuo; abundant 

 among rocks between tide-marks. 



(Jordan & Gill>.-rt, Proc. U. S. Nat. Mu*. 1-^0,204.) 



3G3. PSYCIIROLl'TES Gtinther. 



(Giintlirr, Cat. Fish. Urit. Mus. iii, .Md, l-ill: typi- I'xi/rliroliitcH parafloxns Gtinther.) 



IJody tadpole-shaped, tapering from the head to the very slender tail, 

 covered with very loose, naked, movable skin. Head large, depressed, 



