FISHES OF HAWAIIAN ISLANDS.. 
clouded with grayish; anterior half whitish; region behind preopercle marked with many narrowly 
elongate vertical lemon-yellow spots; anterior part of dorsal fin and snout marked with numerous 
small yellow spots; dorsal and anal edged with yellow, the color extending downward on rays. 
Very numerous specimens were secured, the species being abundant in depths of 40 to 100 fathoms. 
The males occasionally develop 3 or 4 spines about upper eye instead of the 2 present in the type. 
The females are mature, the ovaries lying in a backward extension of body cavity along base of anal 
fin. The following fin-counts indicate the variation in this respect: Dorsal 79, 84, 86, 86, 87, 87, 87, 
88, 89, and 91; anal 61, 65, 66, 66, 66, 68, 68, 66, 69, and 67. 
Specimens were secured at the following stations: Nos. 3846, south coast Molokai, 60 to 64 fathoms; 
3848, south coast Molokai, 44 to 73 fathoms; 3849, south coast Molokai, 43 to 73 fathoms; 3850, south 
coast Molokai, 43 to 66 fathoms; 3861, Pailolo Channel, 30 to 52 fathoms; 3875, Avau Channel, 34 to 
65 fathoms; 3940, Laysan Island, 59 to 70 fathoms; 3963, Laysan Island, 319 to 44 fathoms; 4066, east 
end Maui, 176 to 49 fathoms; 4070, north coast Maui, 45 to 52 fathoms; 4071, north coast Maui, 52 to 
56 fathoms; 4072, north coast Maui, 56 to 59 fathoms; 4073, north coast Maui, 69 to 78 fathoms; 4075, 
north coast Maui, 49 to 57 fathoms; 4076, north coast Maui, 57 to 68 fathoms; 4077, north coast Maui, 
99 to 106 fathoms; 4128, vicinity of Kauai, 68 to 90 fathoms; 4133, vicinity of Kauai, 165 to 41 fathoms. 
Chascanopsetta prorigera, new species. Fig. 271. 
Type, a male 225 mm. long, from station 4080, off the north coast of Maui,' depth 178 to 202 fathoms; 
type, No. 51605, U. S. Nat. Mus. 
Length of head 23 hundredths of total length without caudal; greatest depth 34; least depth of 
caudal peduncle 5; longest diameter of orbit 6; interorbital width 3; length of snout, from lower eye 5, 
from upper eye 9; length of maxillary 14; length of mandible 19; length of left pectoral 15; length of 
right pectoral 3; length of caudal 17; chord of arch of lateral line 12. D. 125; A. 89; P. 14; scales in 
lateral line 140. 
Pig. 271 .— Chascanopsetta prorigera Gilbert, new species. Type. 
Body very thin, as in Cynicoglossus, in shape a very elongate oval, the greatest depth immediately 
behind curve of lateral line, the upper and lower profiles behind this point gently converging and nearly 
straight; caudal peduncle free for a distance equaling half diameter of pupil. Head very deep; pre- 
opercular angle blunt; vertical height of cheeks nearly 3 times their longitudinal width; upper profile 
faintly incurved behind terminal part of snout; eyes well separated, imterorbital space naked, deeply 
concave; upper eye a little be'hind the lower, its anterior margin in a vertical which traverses lower eye 
halfway between its front and front of pupil; mouth large and very oblique; maxillary very long and 
slender throughout, its tip reaching vertical from hinder margin of lower eye; each mandibular ramus 
becomes vertically dilated to form a thin lamella in the middle of its length; toward symphysis, the 
lower jaw becomes very narrow, the dentigerous portion protruding beyond snout for half diameter of 
pupil; teeth large, equal, rather distant, in single series, hooked and depressible inward; a pair of long 
membranous palps, each folded over longitudinally, with their free margins directed inward, depend from 
