616 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
in advance of pectorals, which are inserted low; pectorals very slender, and extending nearly to middle 
of caudal peduncle; first 2 dorsal rays apparently spinous, but the third very distinctly articulated; 
one anal spine, which is compressed and rather long. 
The scales have nearly all fallen. 
Color, head jet-black; trunk, being partly denuded, appears light grayish or brownish, but was 
probably black in life, less intense than head; a distinct black bar at base of caudal, fins otherwise light, 
or only slightly dusky; body cavities lined with black. 
A second specimen, 20 mm. long, without caudal, agrees with the type in fin-rays, scales, measure- 
ments, and color. The short median spine on snout is present. 
The species was taken at stations Nos. 4005, vicinity of Kauai, 480 to 577 fathoms, and 4142, vicinity 
of Kauai, 632 to 881 fathoms. 
Caulolepis longidens Gill. 
A single specimen, 121 mm. long, taken at station 4155, near Bird Island, at a depth of 1,164 to 
1,594 fathoms, agrees closely with the figure and description of the type given by Goode and Bean 
(Oceanic Ichthyology, p. 184, fig. 204), and with the description by Gilbert (cited below) of a speci- 
men from the coast of California. With the exception of a slightly smaller eye, and a slightly shorter 
dorsal and anal (1 less ray in each fin) , no differences have been detected. 
Caulolepis subulidens Garman (Mem. Mus. Comp. Zool., vol. 24, 1899, p. 60, pi. B), from the Pacific 
coast of Panama, seems to be distinguished by important characters. According to the figure, the 
depth at front of dorsal is decidedly less than at occiput, and the profile along base of dorsal is nearly 
straight; the ventrals are more anteriorly inserted and the space between ventrals and anal much 
longer; the premaxillary bone is produced posteriorly into a long slender process, which extends well 
beyond the broadly rounded end of the maxillary. 
Length from tip of snout to base of caudal 101 mm. ; greatest depth of body 50 hundredths of this 
length; least height of tail 10.5; length of head (to tip of preopercular spine) 38; greatest width of head 
18; interorbital width 12; length of snout 12; length of maxillary 33; length of mandible 33; diameter 
of orbit 7; distance from tip of snout to dorsal 51; base of dorsal 41; distance from tip of snout to anal 
74; base of anal 8.5; distance from pectoral to snout 37; from ventral to snout 49.5. Dorsal 18; anal 8; 
pectoral 15; ventral 7; 14 disks along the course of lateral line; about 12 scales in an oblique line 
downward and backward from origin of dorsal fin to lateral line. 
Caulolepis longidens Gill, Proc. U. S. Nat. Mus., VI, 1884, p. 258, Atlantic coast of the United States; Gilbert, Proc. U. S. Nat. 
Mus., XXI, 1898, 565, coast of southern California. 
Family P0LYMIXIID£. 
Polymixia berndti, new species. Plate 78. 
Type, 186 mm. long, from the Honolulu market; cotype from station 4115, off the northwest coast 
of Oahu, depth 195 to 241 fathoms; type, No. 51607, U. S. Nat. Mus. 
Length of head 36 hundredths of total length without caudal; diameter of orbit 12; interorbital 
width 10; length of snout 7.5; length of maxillary 20; length of barbels 27; depth of body 33; least 
depth of caudal peduncle 9; length of pectoral 23; length of ventral 13.5; longest ray of upper caudal 
lobe 24; base of dorsal 38; length of fifth dorsal spine 8.5; length of first soft dorsal ray 17.5; length of 
fourth anal spine 8.5; base of anal 18. D. v, 30; A. iv, 17; P. 16 or 17; V. 7; lateral line with 35 or 
36 pores, 5 scales in a vertical series between lateral line and front of dorsal, 13 or 14 between lateral 
line and front of anal. 
Form much more slender than in P. japonica Gunther; snout bluntly rounded, protruding 
beyond premaxillary teeth, its apex on a level with nostrils; nostrils small, pore-like, the anterior 
slightly larger, located midway between apex of snout and front of orbit; snout protruding beyond the 
premaxilla an axial distance about equaling one-sixth its length; snout covered with soft integu- 
ment, in which are ramifications of the sensory canals; barbels reaching to below pectoral base, 
equaling length of head anterior to preopercle; maxillary extending well beyond vertical from hinder 
margin of orbit; its supplemental bone forms nearly half the extreme width of its dilated posterior 
portion, being much wider than in P. japonica; teeth minute, arranged as in other species, but in very 
