605 
Gilbert and Burke , Bull. Bur. Fisher., vol.30, p. 91, 
1910 (1912) (off Aleutians and Kamchatka). 
Corvphaenoides acrolepis Gilbert and Hubbs, Proc. 
. . . aar 
U. S. Nat. Mus., vol 51, p. (143) 162, 1917 (reference) 
Coryphaenoides bona-nox Jordan and Thompson , Mem. 
Carnegie Mus., vol. 6, No. 4, p. 305, pi. 38, figs. 
1—la, 1914 (type locality: Sagami Bay, Japan). 
Nematonurus bona-nox Gilbert and Hubbs, Proc. U. S. 
Nat. Mus., vol. 51, p. (143) 162, 1916 (Enoshima). 
Depth 5 3/4 to 8 l/4; head 4 3/4 to 5 l/2, width 1 7/8 to 2 l/lO, 
Snout 3 l/3 to 3 7/8 in head; eye 3 l/3 to 4 l/8, 1 to 1 l/8 in snout, 
greater than interorbital; maxillary reached 3/5 to 3/4 in eye, length 
from front end 2 2/5 to 3 in head; preoral length l/2 to 2/3 of eye; teeth 
conic, short, simple in jaws, in 2 or 3 irregular transverse series, lower 
band little narrower; mandibular barbel 1 3/5 in eye; interorbital 4 l/8 to 
5 1/8 in head, low, slightly convex, often slightly depressed medially. 
Gill rakers 3+10 short knobs on second arch, 2/5 gill filaments, which l/2 
of eye. 
Scales 170 to 175 in lateral line, of which 22 to 24 forward of vent; 10 
above, 24 below, 67 predorsal. Scales on muzzle, interorbital and under sur¬ 
face of head much smaller, others like those on body. Scales rather firmly 
adherent, largest on abdomen. Scales with 5 to 8 radiating keels apically. 
