1051 . 
Lionurus spinosus Gilbert and Hubbs 
Lionurus spinosus Gilbert and Hubbs , Proc* U. S. Nat. Mus., vol. 51, 
p. (146) 19S, pi. 10, fig. 2, 1916 (type locality : Eastern Sea, 
427 fathoms); Bull. U. S. Nat. Mus., No. 100, vol. 1, p. 554, 
1920 (off east Luzon, 300 to 560 fathoms)» 
Depth 7; head 5 3/4, width 1 7/8. Snout 3 l/5 in head; eye 
4, 1 l/5 in snout, little greater than interorbital; maxillary reaches 
opposite eye center, length from front end 3 2/5 in head; mandibular 
barbel 1 2/3 in eye; teeth fine, simple, conic, in bands in jaws, of 7 
or 8 irregular rows with outer upper row enlarged; interorbital 4 l/6 
in head, low, slightly convex. Gill rakers 2+7 low knobs on second 
arch, l/3 of gill filaments, which 2 l/2 in eye. 
Scales 157 of which 7 forward of vent; 10 above, 24 below, 
42 predorsal. Scales all finely spinescent, finely rough to touch, 
adherent, rougher on muzzle. Scales on posterior part of head equally 
large as on body. Scales without striae; apically area of 6 to 8 
irregular rows of slender and rather long denticles; circuit moderate. 
D« ■ II. 10 142, second simple ray pungent, front edge denticu¬ 
lated, spinules small and few, length 4 2/3 in total fish; A. 155, much 
higher than low second dorsal; peotoral rays I, 20, fin 2 in head; 
ventral I_, 7, fin 2, first ray ending in short filament. 
Brown. Iris pale. Under surface of head posteriorly, branch- 
* » 
iostegals, breast and belly chocolate to neutral bladeish. Inside mouth 
dark gray and gill opening blackish. Fins brown, ventrals darker or 
dusky. 
