654 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
length equals that of snout, and they extend one-fourth the distance between their base and the origin 
of anal fin; in the smaller cotypes they are a little longer, but they never reach middle of pectoral fins; 
in A. japonicus, the ventrals are much more slender and elongate, extending more than three-fourths 
distance to vent, and dilated and flattened at their tips. 
Color dusky translucent, lips and terminal half of ventral filaments white; other fins jet-black; 
mouth and gill-cavities and peritoneum pale. 
Contents of stomach consisting largely of Very small sea-urchins, occasionally with serpent-stars 
and hermit crabs. The stomach is very wide, without flexure, passing directly into the capacious 
intestine. No pyloric caeca are developed. The liver is very small. 
Fig. 253 . — Ateleopus plicatellus Gilbert, new species. Type. 
A. plicatellus agrees with A. indicus Alcock in the short tapering ventrals, but differs in the larger 
eye, the heavier, less projecting snout, the larger mouth, and the lighter color. 
In the cotypes of A. plicatellus, which equal in size the type of A. indicus, the snout is broadly 
rounded and overpasses the mouth for a distance less than two-fifths its preocular length, the diameter 
of eye equals four-sevenths the length of snout, and the cleft of mouth reaches vertical from front of 
pupil; vertical fins and pectorals jet-black, color otherwise uniformly grayish, without trace of dark 
brown or purple-black. 
The species was taken at stations Nos. 3868, Pailolo Channel, 294 to 684 fathoms; and 3918, off the 
South coast of Oahu, 257 to 294 fathoms. 
Family LYC0DAPID4J. 
Snyderidia, new genus. 
Body compressed; mouth oblique; premaxillaries protractile; mandible included; enlarged fang- 
like teeth present in jaws and on vomer and palatines; no barbel; preopercular margin not adnate; 
head without spines; gill-openings continued forward to below eye; gill-membranes separate, free 
from isthmus; branchiostegals 7; pseudobranchiae present, much reduced; gill-rakers present; 4 gills, 
a wide slit behind fourth arch; skin thin, not lax, scaleless; no lateral line; dorsal and anal beginning 
near head, continuous around end of the whip-like tail; no ventrals; pectorals narrow; stomach thick- 
walled; pyloric caeca 2, short and thick, on opposite sides of the pylorus. 
Snyderidia Gilbert, new genus of Lycodapidse (canina). 
