74 DEEP SEA FISHES. 
long as the head, apparently with a shallow notch; pectorals narrow, more 
than half the length of the head; ventrals inserted below the pectoral 
bases, narrow, pointed, half as long as the pectoral fins. 
Light brown with dots or puncticulations of darker over head and body ; 
gill covers lighter; fins black. 
Station, Latitude. Longitude. Depth. Temperature. Bottom, 
3429 22° 30! 30” N. TOTO SRWy. 919 fathoms 37°F. Gn. m. glob. oz. 
URANOSCOPID i. 
Kathetostoma averruncus. 
Kathetostoma averruncus Jord. and Boll., 1889, P. U. S. Mus., XII., 163. 
Br. r. 6; D. 14-15 (rarely 18); A. 13-14; V. 5 (6); P. 19; Vert. 28. 
Rather short and stout, depressed, broad, rounded on the sides, deeper 
anteriorly, compressed toward the caudal; body cavity less than half 
the total length. Head large, less than one third of the total length, 
as wide and about two thirds as deep as long, crown and lower surface 
flat, sides convex, rough on the opercular regions and the crown; a ridge 
across the top behind the interorbital space. Snout broad, short, blunt, 
one and one half times the length of the orbit; chin prominent, nearly 
vertical. Mouth large, width more than half of the length of the head, 
vertical; maxillary broadened and rounded at the lower end, as wide 
as the orbit. Teeth small, unequal, in bands on jaws and vomer, larger 
teeth distributed in the inner series on the jaws, a few teeth on the front 
ends of the palatines. Eyes small, less than one fifth of the length of the 
head, two thirds of the interorbital width, prominent, superolateral. The 
sunken naked area on the interorbital space above the processes of the pre- 
maxillaries equal in length to the orbit, or to the strong sharp humeral 
spine. An irregular serrated bony ridge on each side between the humeral 
spine and the back of the skull; three short sharp spines below the opercles, 
the anterior two antrorse, the posterior one directed downward ; a promi- 
nent angle below the articular ; a short antrorse spine below the lower jaw 
near the angle of the mouth; two strong antrorse spines in front of the 
pelvis with a prominent and sharp angle between them. Gill openings 
wide, extending forward above the prepelvic spine; gill lamella elongate , 
pseudobranchiw present. Nine pyloric appendages. Skin naked. 
Fins rounded on the margins, fringed; dorsal origin one length of the 
