718 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
from snout; preopercular spine short, bifurcate; cranium plane above. 
Upper part of body mesially, covered with minute, imbedded, non-im- 
bricated, pectinate scales; anteriorly, small cirri, mostly bifid or trifid, 
take the ])lace of the scales. Head, especially above, with very many 
similar cirri ; a fringe of cirri on edge of preojiercle. Dorsal fins con- 
tiguous, rather low; pectoral reaching past front of anal. Anal papilla 
very large. Head 3^; depth 4i. D. IX-17; A. 14; V. I, 3; P. 16. L. 
7 inches. Coast of California; abundant in rock-pools from Monterey 
southward to Lower California. 
(Grd., Proc. Acad. Nat. Sci. Phila. ISiiT, 201; Gii-ard, IJ. S. Pac. R. R. Surv. Fish. 57: 
Centrklermichtlii/s anaiis Giiutlier ii, 171: Cottus criniger GUntber ii, 522.) 
I)b. Skin without scales or iiricldes. (Oligocottus.) 
1103. O. inaeulossis Grd. — Joining. 
Usual color reddish brown, varying to gray, intense green or crimson 
according to surroundings, the vivid colors developed in the presence 
of similarly colored alga); fins all barred; belly usually livid bluish or 
greenish; lower side of head with white mottlings; northern specimens 
with an ocellated black spot on front of spinous dorsal. Head slender, 
narrowed above, the snout rather pointed ; maxillary reaching pupil; top 
of head with several scattered cirri ; a few on sides of head, none on 
edge of preopercle; cirri on lateral line anteriorly and on front of back, 
also on base of spinous dorsal. No scales or prickles anj- where; pre- 
opercular spine forked. Front rays of anal enlarged and i>artly de-. 
tached in anal papilla large (in ^); pectorals reaching well beyond 
front of anal. Head 3|; depth 44. D. VllI-lC; A. 12. L. 3 inches. 
San Luis Obispo to Alaska, exceedingly abundant northward; one of the 
smallest of marine Cottidw. 
(Girard, Proc. Acad. Nat. Sci. Phila. 185(i, 153; Girard, U. S. Pac, R. R. Surv. Fish, 
56: Ccntridennichthgs macitlosus Giiiither, ii, 171.) 
aa. Month with very little lateral cleft; the head globoid. (Blennicottus* Gill.) 
1101. O, glotoaceps Grd. 
Dark olive, with obscure darker cross-bars; first dorsal with 2 dark 
streaks above; fins generally barred with greenish, orange, or blue; 
cirri mostly black. Body little comiiressed; head extremely short and 
blunt, narrowed above, nearly everywhere convex. Mouth anterior, 
short and broad, almost without lateral cleft; lower jaw shortest; max- 
illary reaching imst front of the small eye; iuterorbital space very nar- 
*Gill, Proc. Acad. Nat. Sci. Phila. 1881, 166: type OUgocoitus glohiceps Grd. {Blen- 
nf«s; Coitus.) 
