688 CONTRIBUTIONS TO NOETH AMERICAN ICHTHYOLOGY IV. 



not firm. Gills 3 J, no slit behind the last arch ; gill-membranes broadly 

 joined to the isthmus, their union extending to above the lower edge of 

 the base of the pectorals. Pseudobranchife very small; no cirri, scales, 

 or prickles; the skin thin and movable, smooth, or roughened with small 

 warts. Spinous dorsal little developed ; the two fins usually continu- 

 ous ; spines very slender, flexible, imbedded in the skin ; pectorals short, 

 procurrent below; ventrals very short, well separated, their rays 1,3; 

 caudal rounded. Deeper parts of the Atlantic; very closely related to 

 PsycJirohites. (A diminutive of Cottus.) 



1044. C unicrops CoUett. ' 



Pale, with three broad duskj' cross-bands on body and fins, one on 

 head, one through spinous dorsal and pectoral, one throhgh second 

 dorsal and anal, besides a small band at base of caudal. Head very 

 large, its length, breadth, and d^pth nearly equal; the greatest depth 

 at the na]De; four bony tubercles on top of head and some at the sides, 

 all covered by the skin; lower jaw included; maxillary extending to 

 below the middle of the eye, which is equal to the snout, and about 4^ 

 in head; suborbital stay and the roughish edge of the i)reopercle both 

 covered by smooth skin; chin and iireorbital with pores. Skin every- 

 where thin, somewhat movable, its surface roughened by small blunt 

 warts. Dorsal fin continuous, the feeble spines lower than the soft 

 rays; pectorals barely reaching anal; caudal long. Head 2f ; deptli 3^. 

 D. VI-IO; A. 10. L. 8 inches. Deep water off the coasts of Norway 

 and of Ehode Island; lately taken by the United States Fish Commis- 

 sion. The specimens here described by us difier somewhat from Col- 

 lett's description, but the verj' small size of the original types may per- 

 haps account for the discrepancies. 



(? Collett, Norges Fiske, 1875, 20, pi. 1; Goode, Proc. U. S. Nat. Mus. 1880, 479.) 



1013. C. tOB'VMS Goode. 



Color yellowish, the fins all dusky; no cross-bars. General form and 

 appearance of C. microps, but the head still larger, and the skin per- 

 fectly smooth, very thin, loose, and movable as in Llparis. Tubercles 

 on head stronger, more numerous, covered by skin, but more spine-like, 

 the bones firmer; spinous dorsal still feebler and more concealed. 

 Head 2^; depth 3 J. D. VII-14; A. ca. 15. L. 6 inches. Deep water 

 ofl" the coast of Ehode Island ; lately taken by the United States Fish 

 Commission. 



(Goode, Proc. U. S. Nat. Mus. 1880, 479; name only.) 



