954 . 
Hymenocephalus gracilis Gilbert and Hubbs 
Hymenocep halus gracilis Gilbert and Hubbs, Bull. U. S. Nat. Mus.. No, 
sr ,,,m ’ ' g— 
100, vol. 1, p. (520) 522, fig. 31, 1920 (type locality j off south¬ 
ern Luzon, 162 fathoms). 
Depth 8 1/2; head 5 l/5, width 2. Snout 5 in head, 1 l/2 
in eyej eye 2 7/8 in head; preoral short, steep, length 6 l/8j maxil¬ 
lary reaches 3/4 in eye, length from front end 2 in head; mandibular 
barbel 1 l/5 in eye; teeth minute, uniform, in villiform bands in 
jaws; interorbital 5 l/3 in head, 2 in eye, low, concave. Gill 
* 
rakers 0+12 low spinescent tubercles, 1/3 of gill filaments, which 
l/3 of eye. 
Scales (pockets) £0 in lateral line to pseudocaudal; 3 above, 
8? below, 9? predorsal forward till opposite hind eye edge. Scales 
•* j 
cycloid, thin, smooth; circuli moderate, complete. 
D. II , 10—70, second simple ray slender, pungent, with few 
weak antrorse denticles along front edge subterminally, length 1 l/2? 
in head; interdorsal spaoe 10; A. 68, fin height 3 2/57; pectoral 
rays I, 12, fin 1 7/8 in head; ventral rays I, 7, fin 1 3/5, first ray 
ending in filament. 
Pale brown generally, sides and lower surfaces with silvery 
white tints, all sprinkled with brown specks or dots. Iris slate. 
Inside mouth pale or whitish, also inside gill opening. Chin and 
inner edges of branchiostegals with many parallel transverse close-set 
dark or blackish lines. Cheat and breast before ventral fin bases 
coppery, with rather large scattered dusky dots or specks. Middle of 
