| 444 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
| 
U 
97. Careproctus ostentum sp. nov. 
Differing from C. spectrum in the minute size of the sucking disk, which is reduced 
to a mere rudiment entirely concealed by the anterior (lower) lobes of the pectoral 
fins, about 1 mm. in diameter in a specimen 78 mm.long. The snout is longer and 
more pointed than in C. phasma or C. spectrum, its width little greater than its 
length, 2} in head. Mouth with very distinct lateral cleft, its width less than its 
length. Maxillary reaching a vertical line crossing orbit behind pupil, 1,%5 1m head. 
Teeth minute, in natrow bands, indistinctly tricuspid. Eye equaling length of snout, 
14 in total width of interorbital area. The true bony interorbital width is much 
narrower than this. The epidermis of the head is largely lost, and the width of the 
gill-slit can not be determined. A short nostril tube. Fins as in C. spectrwm and 
C. phasma. Skin loose, thinner than in C. phasma. Color white or slightly brownish, 
minutely punctulate with black. 
Three specimens from north of Unalaska Island, stations 3324 and 3331; depths 
109 and 350 fathoms. 
98. Careproctus simus sp. nov. 
A species with very heavy head and body and inferior transverse mouth, over- 
lapped by the thick rounded snout. The appearance is much that of Khinoliparis 
barbulifer, but the anterior parts are much heavier, the nape more elevated, the 
snout shorter and blunter, and the latter without barbels. The snout extends 
beyond front of eyes for a distance (measured axially) equal to two-thirds diameter 
of orbit, and projects beyond the mouth for one-half that distance. Mouth trans- 
verse, its width nearly twice the distance from symphysis of lower jaw to angle of 
mouth, the latter reaching a vertical midway between front of eye and pupil. 
Teeth indistinctly tricuspid, in narrow bands, 11 or 12 series in each half of lower 
jaw, 8 or 9 in the upper. Nostrils without tube. Eye large, one-third length of 
head, equaling snout, 14 in total interorbital width. Gill-slit moderate, two-fifths 
of it opposite upper pectoral rays, its width two-thirds diameter of eye. The 
opercle is prolonged into an acute lobe overlapping middle of shit. 
Disk rather small, round, under posterior part of eye; its diameter seven-ninths 
that of eye. Vent immediately behind it, equidistant from front of anal and angle 
of mouth. Pectorals inserted high, the upper edge on a level with the middle of 
eye. The fin is continuous, the median rays greatly shortened, the lower ones again 
longer, with exserted free tips. The upper lobe extends beyond front of anal and 
equals length of head behind snout. The lower rays are two-thirds the length of 
the upper ones. Pectoral with 33 rays. Origin of dorsal fin just behind axil of pec- 
torals, continuous posteriorly with the caudal fin, which is very narrow and not 
distinct. Origin of anal at end of first third of length. Whitish or light brown, 
dusky posteriorly on body and fins. Mouth, gill-cavity, and peritoneum white. 
One specimen, 80 mm. long, from north of Unalaska Island, station 3331; depth 
350 fathoms. 
GYRINICHTHYS gen. nov. (LIPARIDID.) 
Teeth simple, not tricuspid. Body attenuate posteriorly, as in Paraliparis, the 
tail scarcely distinct. Disk small under the posterior part of the head; the vent 
immediately behind it. Pectorals without anterior lobe, the rays progressively 
shortened, none of them exserted or with free tips. Gill-openings reduced to a 
minute round pore, well above base of pectorals. (Type G. minytremus sp. nov.) 
99. Gyrinichthys minytremus sp. nov. 
Body in the type greatly distended with eggs; the original shape difficult to ascer- 
tain, tapering posteriorly into an extremely slender compressed tail. Head slender, not 
greatly depressed, the depth and width about equal. Nuchal region not elevated, 
the profile rising but little behind the snout, which is blunt, with almost vertical 
profile. Moutb very small, almost entirely transverse at end of snout, with but little 
lateral cleft, the angle of mouth scarcely reaching vertical from nostril. Jaws 
—oeee 
