vol. 
Gadomus arcuatus GILBERT and HUBBS, Proc. U. S. N. M., 
51, p. 142, 1917 (reference); Bull. U. S. N. M. no. 100, 
vol. 1, p, 392, 1920 (diagnosis in key). 
Depth 5 x/3; head 5 to b l/4, width 1 3/4. Snout 3 in head; 
eye 5 4/5, 2 in snout, subequal with interorbital; maxillary reaches 7/8 
to eye, length 1 4/5 in head; mandibular barbel 1 2/3; teeth extremely minute, 
close set, compact, form broad area above, lower similar though bands half 
as wide; interorbital 6 l/5 in head, low, level. Gill rakers 5+19, slender 
on first arch, 1 /c of eye; gill filaments 4/5 of gill rakers. 
Scales 138 to 140 in lateral line, of which 18 to 140 in lateral 
line, of which 18 to 20 forward of vent; 8 above, 10 or 11 below, 38 
predorsal. Scales very caducous, most all lost, largest on cheeks and 
opercles. Scales without striae; circuli fine, form angles basally at 
median horizontal axis. 
D * -i=£ 10 " 135s second simple ray at least 2 in head; A. 120, 
greatly lower than second dorsal; pseudocaudal small or rudimentary; 
pectoral rays 1, 24, uppermost ending in short filament, fin 1 2/5 in head; 
ventral rays , 8, first and second rays ending in long filaments of which 
second linger or 3 2/3 in total fish. 
Brown, though head and belly not darker. Iris gray. Inside 
mouth whitish. Inside gill opening pale brown. Fins nore or less dark 
to dusky brown. 
