836 CALIFORNIA ACADEMY OF SCIENCES. 
wide, slightly concave; nostrils ending in very short, 
wide tubes, the posterior over the anterior margin of eye, 
the anterior in front of it a distance equal to the diame- 
ter of eye; opercle ending in a short, wide spine covered 
with skin; it is situated slightly above the middle of gill- 
opening; gill-opening running from about the eleventh 
pectoral ray to a level with the eye. 
Origin of dorsal slightly behind base of pectoral, its 
distance from the snout 3+ in length of body, its anterior | 
rays short, gradually lengthening posteriorly, the rays 
from the anterior third to near the end about equal, the 
last ray abruptly shortened, forming a slight notch where 
the fin joins the caudal; posterior two-thirds of caudal 
free above; anal similar to dorsal, about the same height, 
its origin nearer snout than base of caudal, about under 
the base of the tenth dorsal ray, posteriorly it is longer 
than the dorsal, joining the caudal at about half its length; 
ventral disk nearly round, its distance from tip of lower 
jaw 1% in its diameter, 1 in distance from vent, 2 from 
first anal ray; vent midway between front of anal and 
edge of disk; upper lobe of pectoral broadly rounded, 
reaching to two-thirds of the distance between vent and 
front of anal; lower lobe long, reaching nearly to vent; 
caudal long and slender, rounded behind. Skin very thin 
and loose on body and head, covering the anterior parts 
of dorsal and anal, attached at about the middle of rays 
posteriorly and covering the base of caudal rays. 
Color light brown, lighter below, thickly covered with 
minute brown points, which form spots and mottlings on 
sides; upper part of head dark, lips spotted with brown; 
dorsal and anal dark brown, slightly mottled with lighter; 
pectoral light, with irregular brown spots and bars run- 
ning across it. Caudal dark brown, mottled at base, two 
light bars crossing it towards its end, leaving a narrow 
posterior margin of brown. 
