192 Annals of the Carnegie Museum. 



cottus aciiticeps the flaps are simple at all ages, or sometimes the first 

 one or two are doubled, and they extend backwards past the front of 

 the anal. 



36. Oligocottus maculosus (Girard). 



Some large specimens of this fish which is very common in tidal 

 pools were taken in the pools at Kanaka Bay, San Juan Island. The 

 species may be readily known from Oligocottus rtibellio and Dilarchns 

 snyderi, which replaces it on the California Coast south of Monterey 

 Bay (its range and that of the latter form overlap from Pigeon Point 

 north to Crescent City) by the absence of cirri at the base of the dorsal 

 fin, or anywhere above the lateral line, and by the absence of a definite 

 dark spot on the front of the spinous dorsal. From Oligocottus rubellio 

 it is further known by the smaller head and eye, being in this respect 

 closer to Dilarchus snyderi. It has a much blunter snout and lower 

 nasal spines than Dilarchus snyderi, from the male of which it is at 

 once distinguished by the generic character of the connected first 

 anal rays. 



37. Dasycottus setiger Bean. 



Taken abundantly in deep water; the largest specimen being eight 

 inches in length. The occipital spines are not so high as in Alaskan 

 specimens, with which these have been compared, and the transverse 

 distance between most of the spines is less. 



The life-colors are as follows: grayish flesh ground-color with choco- 

 late-brown cross-bands, spots, and lines; pectoral lead-color, below edge 

 with white; caudal with a light margin. 



38. Nautichthys oculofasciatus (Girard). 



This species apparently adapts itself to various depths, as it was 

 taken from deep water (30 or 40 fathoms) in the dredge, and from 

 shallow water in the seine. It is rather a sluggish fish, and no dif- 

 ficulty was experienced in catching in a dip-net a couple of specimens 

 which were swimming in a foot of water. 



The colors in life are orange-brown, the flesh translucent; the pec- 

 toral and cheek a little deeper in color than the rest of the head or 

 body; some yellow about the snout and under side of the head; mem- 

 brane of spinous dorsal light yellow, varying to green; the first spines 

 olive-brown, crossed with light green; soft dorsal light brick-red, 

 crossed with olive-brown; olive-brown spots on pectoral rays; ventrals 

 yellow; anal like soft dorsal, but a little lighter; caudal with a wide 



