G86 COXTRIBUTIOXS TO NORTH AMERICAN ICHTHYOLOGY IV. 
lO&l. SI. cavifs’oiis Lock. 
Very similar to the preceding, but with the upper surface of the bead 
more uneven, the concavity of the interocular area more marked, and 
the dorsal flu with more spines. Head equalling depth, about in 
total length with caudal. D. lY, XIY-IS; P. 20; Y. I, 3; xV. 14; Lat. 
1. 44. L. 16 inches. Kodiak, Alaska; perhaps not distinct from the 
l)recediug. 
(Lockiiigton, Proc. Acad, Nat. Sci. Phila. 1880, 233: CotUis viUosus Pallas, Zoogr. 
Ross.-Asiat. iii, 129, 1811.) 
362.— ASCEI.SCSSTSIYS Jordan & Gilbert. 
(Jordan & Gilbert, Proc. U. S. Nat. Mns. 1880, 264: type Ascelichthyti rhodorus Jor. & 
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 spin*es; a supraorbital cir- 
rus; teeth on jaws, vomer and palatines; no slit behind fourth gill; gill- 
membranes broadly united, free from the isthmus; spinous dorsal low; 
the spines slender, almost concealed in the membrane; pectorals broad; 
ventral Jins icanting. Small Ashes of the rock pools of the Xorth Paciflc. 
(a, privative; (TxeXog, leg; flsh.) 
1042. A. rUsodoroas Jor. & Gilb. 
Dark olivaceous, sometimes with saddle-like pale blotches; lips rosy; 
spinous dorsal dusky, edged in life with bright crimson; other tins 
dusky, edged with paler, the pectoral slightly barred. Head low, 
rounded anteriorly; maxillary reaching to posterior border of eye. Xo 
scales, prickles, or barbels anywhere, except a fringed cirrus over the 
eye; imeopercle with a short, simple, strongly hooked spine; spines 
directed downwards and forwards on subopercle and iuteropercle; lat- 
eral line continuous. Dorsal tins connected by membrane, the spines 
low, weak, nearly uniform; soft dorsal nearly twice as high as spinous; 
pectorals about reaching vent. Head 3; depth 5. D. IX-19; A. 15; 
P.16. L. 5 inches. Paciflc coast; Sitka to Cape Mendocino; abundant 
among rocks between tide-marks. 
(Jordan & Gilbert, Proc. U. S. Nat. Mns. 1880, 264.) 
363.— PSYCHKOEETES Gunther. 
(Giinther, Cat. Fish. Brit. Mns. iii, 516, 1861: type rsi/chrohites paradoxus Gunther.) 
Body tadpole-shaped, tapering from the head to the very slender tail, 
covered with very loose, naked, movable skin. Head large, depressed, 
