Jordan and Evcrmann. — Fishes of lYoiih America. 1991 



inches. Bering Sea in deep water, 4 specimens known ; from off Unalaska 

 in 399 fathoms, and north of Bogoslof Island at Albatross Station 3634, in 

 664 fathoms, where a single specimen 58 mm. was obtained. This speci- 

 men closely resembles the type of Zesiicelus profundorum, but the spines 

 are somewhat stronger than in the latter and the lins shorter. In the 

 Bogoslof specimen the upper preopercular spine extends to margin of 

 opercle, and the occipital spines are more evident, terminating in short 

 strong ridges. D. VII, 10 ; A. 8 ; P. 20, The lower parts, up to and includ- 

 ing the lateral line, are blackish, the line separating them from the lighter 

 under parts very sharply defined. Fins all black. Otherwise essentially 

 as in the type of Z. prof undo7-um, with which we now consider it identical. 

 The variation in the fin rays in this species is considerable, if the figures 

 given by Dr. Gilbert are correct. One of the cotypes, however, has P. 20, 

 not 17 or 18, as stated by Gilbert, The figure also shows 20 rays in the 

 pectoral. It also shows 11 rays in the anal, while our specimen has but 8, 

 (profundorum, of the depths.) 



Acanthocottus profundorum, Gilbert, Kept. U. S. Fish Comm. 1893 (1896), 423, pi. 26, Bering 



Sea north of Unalaska Island at Albatross Station 3329, in 399 fathoms. 

 Zesticelus profundorum, Jokdan & Gu-bebt, Eept. Fur Seal Investigations, 1898. 



734. DASYCOTTUS, Bean. 



Dasycottm, Bean, Proc. U. S. Nat. Mus. 1890, 42 {setiger). 



Head large, with large, bony tubercles and numerous filaments. Mouth 

 wide, jaws equal, or lower jaw slightly projecting. Teeth minute, in 

 villiform bands in jaws; vomerine teeth in 2 patches, separated by an 

 interspace; palate toothless, Preopercle with 2 spines at its angle and 2 

 rudimentary ones on each edge of its lower limb. Gills 3J, no slit behind 

 the last; gill rakers short, tubercular, in moderate number; gill mem- 

 branes free from isthmus; pseudobranchia^ present. Skin smooth, except 

 on nape and along dorsal base, where it bears a few small, bony tubercles. 

 Spinous dorsal well developed and separated from the soft dorsal by a 

 deep notch; pectorals moderately long, their rays procurrent below ; veu- 

 trals with a spine and 3 rays; caudal rounded. North Pacific, Very close 

 to Cottunculus, apparently differing in having cirri on the head and the 

 preopercular spines not hidden by skin, (d a6vg, vroollj; Cottus.) 



2362, DASTCOTTIS SETIGER, Bean. 



Head 2; depth 3, D. IX, 15; A. 13; V. I, 3; lateral line (pores) 11 or 12. 

 Eye nearly equal to snout, | length of head. Maxillary expanded behind, 

 its length equaling that of snout and eye combined, extending to a little 

 behind middle of eye. Pectoral extending to above anal origin ; ventral 

 i as long as postorbital part of head; longest dorsal spine about equaling 

 eye in length ; spinous dorsal with 2 dusky bands extending down on the 



