410 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
46. Sebastolobus altivelis sp. nov. (Plate 23.) 
Body slender, depth 3} in length; head 2}; lateral line 33-35 pores. Dorsal xv, 9; 
anal 01,5; pectoral 22. Mouth large, 2 in head, maxillary reaching posterior margin 
of pupil. Mandible laterally and in front shutting within the wide premaxillary band 
of teeth, its tip fitting into an emargination between premaxillaries, and bearing a 
short symphyseal knob. Bands of teeth on mandible, vomer, and palatines narrow. 
Eye very large, 3 in head, 3 times interorbital width. Interorbital narrow, scaled, 
concave, with 2 low, rounded ridges. Cranial ridges strong, terminating in sharp 
spines, agreeing with those in 5. alascanus and S. macrochir. Preorbital wide, par- 
tially overlapping middle third of maxillary, posteriorly with a forwardly directed 
triangular spine, in front of which is a long slit-like mucous pore. A blunt tubercle 
directed forward from front of each premaxillary, less prominent than in S, alascanus. 
Dorsal spines long and comparatively strong, the third always the highest, the 
outline of fin behind it straight or concave, never convexly rounded, as in S. macrochir 
and S. alascanus. In the type specimen the longest spine is contained 13 times in 
length of head. The spine before the last is scarcely longer than the one preceding, 
the last spine again lengthened. Second anal spine usually curved, much longer 
and stronger than third and longer than soft rays, its length 1? to 2in head. In 
the type it is abnormally curved, as shown in the accompanying figure. Ventrals 
reaching to vent; pectorals to front of anal. Pectoral fin very broad, the lower 
seven rays thickened and extended beyond membranes, the lobe thus formed subject 
to much variation, being unusually short in the type. Scales rough ctenoid. Man- 
dible scaled at base only, the head otherwise completely invested, including the 
branchiostegal rays and membranes. Fin membranes covered with fine ctenoid 
scales. 
Color, red; a dark blotch on membranes between first and third dorsal spines, and 
a large one beginning back of fourth spine and extending along entire upper edge of 
fin; edge of pectoral, ventral, anal, and sometimes caudal, black. In some speci- 
mens a black blotch on membrane back of second anal spine, as in 8S, macrochir. 
Opercular lining blackish, this visible externally as a dusky blotch. 
The type is a specimen 325 mm. (12? inches) long, taken south of the Alaskan 
Peninsula at a depth of 625 fathoms (station 3338). No other specimens were secured 
during the Alaskan expedition of 1890, but the species is almost equally abundant 
with S. alascanus in deep water off the coast of California. From S. alascanus it is 
distinguishable at sight by the contour of the spinous dorsal fin, the smaller number 
of dorsal spines, and the dusky lining of the opercle. From S. macrochir, with which 
it agrees in its fin formula, it is distinguished by the greater height of both dorsal 
and ana: spines, and in the different contour of the spinous dorsal. 
Family COTTIDA. The Sculpins. 
47. Hemitripterus marmoratus Bean. 
Several small specimens were secured at stations 3224, 3257, 3258, and 3311, in 
Bering Sea, north of Unalaska Island; depths, 70 to 121 fathoms. They agree with 
the types in having but 14 dorsal spines, the first four of which are not noticeably dif- 
ferentiated. The second dorsal contains 11 or 12 rays, and the anal fin 13. The last 
two rays of the anal fin are approximated at base, but do not evidently constitute 
a divided ray. 
48. Psychrolutes zebra Bean. 
Taken abundantly in shallow water south of the Alaskan Peninsula, thence west — 
to and through Unimak Pass, along the northern shore of Unalaska Island, and in 
Bristol Bay. The depths range from 31 to 121 fathoms, at stations 3213, 3215, 3216, — 
3217, 3219, 3222, 3223, 3224, 3225, 3257, 3258, 3259, 3263, 3265, 3272, 3310, 3311, 3313; 
3322, and 3334. The spinous dorsal is continuous with soft dorsal, there being no — 
notch between the two. 
