684 
BULLETIN OE THE UNITED STATES EISH . COMMISSION. 
Platophrys mancus (Broussonet). 
In addition to the specimens of this common species which were seen almost daily in the Hono- 
lulu market, others were dredged at depths of less than 75 fathoms. At station 3859, very young 
specimens were taken which were entirely transparent, and were very probably captured at or near 
the surface. Young individuals were often secured in the surface tow-nets. 
Specimens were taken at the following stations: Nos. 3859, Pailolo Channel, 138 to 140 fathoms; 
3875, between Maui and Lanai, 34 to 65 fathoms; 3940, vicinity of Laysan, 59 to 70 fathoms; 4070, off 
the north coast of Maui, 45 to 52 fathoms. 
Platophrys cblorospilus, new species. Fig. 267. 
Type, a male, 183 mm. long, from station 4074, off north coast of Maui, depth 78 to 85 fathoms; 
type, No. 51647, U. S. Nat. Mus. 
Length of head 26.5 hundredths of total length without caudal; longest diameter of orbit 8.5; least 
interorbital width 6; length of snout, from lower eye 6, from upper eye 14; length of maxillary 10; 
depth of head across middle of upper eye 30; greatest depth of body 45; depth of caudal peduncle 10; 
length of left pectoral 21; chord of arch of lateral line 16. D. 108; A. 89; P.13; scales in lateral line 90. 
Body rather slender, eyes proportionately large and widely separated; profile slightly angulated 
in front of upper eye; mouth oblique; maxillary extending to below front of pupil; teeth in single 
series in both jaws; lateral premaxillary teeth small and close-set; anterior premaxillary and man- 
Fig. 267 . — Platophrys chlorospilys Gilbert, new species. Type. 
dibular teeth larger and more widely spaced; no teeth on vomer or palatines; interorbital space a' wide 
shallow groove, its width less than the diameter of the large eye; no spines or protuberances about eyes 
or on snout; gill-rakers slender, toothless, 9 in number, the longest 0.3 diameter of pupil, wholly 
wanting on vertical limb of arch; slit behind last gill short, 0.3 diameter of eye. 
Anterior dorsal rays free for half their length, not produced or filamentous, increasing regularly in 
length from the first; left ventral inserted on the pre-anal ridge, membrane of last ray deflected to left 
side of ridge; vertical fins all low; caudal double truncate, or doubly emarginate, median ray produced; 
left pectoral twice as long as right, second and third rays prolonged somewhat beyond general contour 
of fin. In P. mancus of the same size and sex, the left pectoral would be greatly produced. Caudal 
rays branched, other rays simple. 
Scales strongly ctenoid on left side, cycloid on right side; lateral line present on left side only, its 
anterior arch flat- topped; 'chord of arch contained 4.2 times in straight portion; interorbital space and 
mandible scaled; a few scales on exposed part of maxillary; terminal half of snout naked; single series 
of scales on dorsal and anal fin-rays and double series on caudal rays. 
