590 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
encircling body below dorsal fin, expanding below to include the breast, and becoming intensely black 
about base of ventrals; inner 3 or 4 ventral rays intensely black; upper half of axil dusky; a blackish 
streak at base of caudal, including the upper rudimentary rays; gullet, gill cavity and peritoneum black. 
Taken at the following stations: Nos. 3867, Pailolo Channel, 284 to 290 fathoms; 3900, Pailolo 
Channel, 283 to 280 fathoms; 3920, off south coast of Oahu Island, 280 to 265 fathoms; 3952, vicinity of 
Laysan Island, 351 to 347 fathoms; 4081, off north coast of Maui Island, 202 to 220 fathoms; 4082, off 
north coast of Maui Island, 220 to 238 fathoms; 4096, Pailolo Channel, 272 to 286 fathoms; 4115, off 
northwest coast of Oahu Island, 195 to 241 fathoms; 4117, off northwest coast of Oahu Island, 282] 
to 253 fathoms; 4122, off southwest coast of Oahu Island, 192 to 352 fathoms; 4132, vicinity of Kauai 
Island, 257 to 312 fathoms. 
Chloroplithalmus proridens Gilbert & Cramer, Proc. U. S. Nat. Mus., XIX, 1897, 106', pi. 36, fig. 2. 
Family BATHYPTEROIDAJ. 
Bathypterois antennatus, new species. Fig. 235. 
Type, 165 mm. long, from station 4151, vicinity of Bird Island, depth 313 to 800 fathoms; No. 5160,. 
U. S. Nat. Mus. 
Head 22 hundredths of total length without caudal; depth 14; depth of caudal peduncle 7.5; 
interorbital width 7.5; eye 2; snout 7; maxillary 14; length of ventrals 33; length of pectoral filament! 
100; D. 15; A. 9; P. 2-10 or 11; V. 9; branchiostegals 13 or 14; scales 5-56 or 57-8. 
Anterior nostril midway between tip of snout and middle of eye, the 2 nostrils separated only by 
the elevated membranous rim of anterior nostrils; posterior nostril elliptical in shape, twice the diam- 
eter of the anterior; eye minute; maxillary comparatively broad, its greatest width approximately] 
equaling the length of the tapering posterior portion; teeth minute, in a narrow band on premax- 
illaries and a wider band in the mandibles, the premaxillary band confined to anterior half or three-1 
fifths of the bone; a few minute asperities in a patch on each side of the head of the vomer and on 
the front of each palatine; gill-rakers very long, slender, toothed, 14+34 on the outer arch. 
Origin of dorsal midway between tip of mandible and middle of interspace from adipose dorsal to 
caudal, or a short distance behind axil of ventral, its base very slightly overlapping front of anal and its 
length 1.5 in head; about one-fourth of dorsal fin in the anterior half of body; distance from adipose fin ‘ 
to base of upper caudal rays one- third its distance from origin of dorsal, or two-thirds its distance from, 
last dorsal ray; origin of anal midway between head and base of caudal fin; lower caudal lobe longer] 
than the upper, 3.4 in total length without caudal; upper pectoral ray injured in both our specimens,! 
but extending beyond caudal; it is forked as far forward as a point between vent and front of anal, and 
the coalesced halves of the ray can be traced to the base; second ray joined to first by membrane, and 
very short, about 0.2 length of head; below this 10 or 11 very slender disconnected rays, some of the 
lower ones at least forked near tip, and extending beyond origin of anal fin; the, 2 outer ventral rays 
wholly distinct, simple, elongated and flattened, and with a soft white pad near their tips; in the type] 
