FISHES FROM BERING SEA AND KAMCHATKA. 



59 



white; ventrals white; anal largely white, with a conspicuous wide curved or V-shaped black baron 

 posterior half of fin. 



Only the type taken. 



This species is not to be confounded with any other. In coloration, in the character of the spine- 

 like scales, the short preopercular spine, the wide interspace between dorsals, the presence of supraocular 

 tubercles, the absence of filaments and the fin rays, it is unlike other species. 



Myoxocephalus parvulus, new species. (Fig. 12.) 



Type 65 mm. long, from tide pool at Preobrazhenskoi Bay, Medni Island. 



Measurements in himdredths of length to base of caudal: Head 36; snout 8.8; diameter of eye 7; 

 interorbital width 4; maxillary 14; width of head 27; distance between posterior ends of occipital 

 ridges 5; depth of body 25; least depth of caudal peduncle 5.8; longest dorsal spine 13; longest 

 dorsal ray 16; length of caudal 23; length of ventrals 25; of pectorals 34. 



Dorsal lx-14; anal 12; pectoral 17; 35 pairs of pores in lateral line to base of caudal, an additional 

 pair on base of caudal, and an unpaired terminal pore. 



A blunt tubercle bearing a small papilla at upper posterior border of orbit, with an indistinct smaller 

 tubercle before it on supraocular ridge; interorbital space narrow, rather deeply grooved, the sides of 



Fig. 12. — Myoxcephalus parvulus, new species. Type. 



groove forming on median line a sharp angle, which lies between a pair of concealed low ridges; occipital 

 region depressed, especially anteriorly, where it forms a pit-like concavity, the floor of which is below 

 the bottom of the interorbital groove; the occipital ridges converge backward, each terminating in a 

 small tubercle bearing a low papilla; the ridge is frequently interrupted by depressions, thus forming 

 two or three tubercles; no filaments on head, but the maxillary with a low papilla; nasal spines weak, 

 but not concealed; anterior nostril tube longer than the posterior; maxillary extending nearly to vertical 

 from posterior border of pupil; teeth on vomer in a single irregular row, the bands on jaws narrow, 

 the inner series slightly enlarged. Upper preopercular spine short, directed obliquely upward and 

 gently curved, reaching half way from its base to tip of opercular spine; second spine about one-half 

 the length of the first, inclined downward and backward; third spine represented by a small concealed 

 tubercle; the fourth directed downward and forward; a short sharp spine on lower angle of subopercle, 

 and a shorter, blunter one on adjacent angle of interopercle; post-temporal and humeral spines blunt. 



Dorsals contiguous; head and body without spines, tubercles, or warts; lateral line opening in two 

 series of pores, one above the other below the plates. 



Color dark bluish above, white below, the back crossed by two broad conspicuous bands of gray; 

 the first band includes the last three spines and the first tliree rays of the dorsals and extends first 

 vertically downward then forward and downward until it joins the white of the abdomen; the second 

 includes the last two rays of the dorsal and about half the caudal peduncle and extends downward in a 



