698 
BULLETIN OF THE UNITED STATES PISH COMMISSION. 
thickly covered with plates like the smaller ones on dorsal surface, those in front of ventrals some- 
what enlarged; two short series of spines on tail; outside the iris, the eye is thickly beset with small 
prickles; lateral line distinct, deeply channeled, bordered above and below, along sides of trunk and 
tail, by a series of spinous plates, one pair to each papilla; a pair of flaps, with narrow pedicels and 
expanded fringed ends, meet above each papilla, intervening between latter and the pair of spines; 
structures entirely similar along edge of disk; immediately contiguous to the first, fourth, and fifth 
papilla on each side of symphysis is an accessory papilla placed forward on anterior margin of groove; 
in this, the fringed lobes and projecting spines are arranged at sides of papilla, that is, parallel with 
groove, instead of transversely to groove as in those of the regular series. 
Distance from origin of dorsal to base of caudal a trifle more than half predorsal length; when the 
dorsal is declined, its tip extends halfway from its origin to caudal base; second anal ray equidistant 
from vent and base of caudal; when turned forward, the pectorals pass subopercular spine; ventrals not 
nearly reaching margin of disk. 
In life, uniform light carmine-red, the blackish lining of gill-cavity and abdominal cavity faintly 
visible through the thin walls; lower surface suffused with purple; fins, lure, and buccal cavity 
unmarked; the fins deeper red or a little darker in color. 
Only the type known. 
Dibranchus stellulatus, new species. Fig. 276. 
Type, 67 mm. long, from station 4080, off the north coast of Maui, depth 178 to 202 fathoms; type, 
No. 51595, U. S. Nat. Mus. 
Greatest width of disk at base of subopercular spine much greater than its length, equaling distance 
from tip of snout to middle of dorsal base; length of disk 65 hundredths of total length, without caudal ; 
greatest width of disk, not including lateral spines, 78; longitudinal diameter of orbit 11; the slightly 
concave interorbital width 11; width at base of rostral projection 12; length of the projection 12; width 
of mouth between angles 25. D. 6; A. 4; P. 14 or 15; Y. i, 5. 
Disk everywhere depressed, highest above middle of orbits; occiput broadly flattened and a little 
concave; antero-lateral outlines broadly rounded; snout forming a sharp, narrowly triangular pro- 
jection, which is directed forward and upward, and extends well beyond mouth; outline of disk 
abruptly angulated at subopercular spine, gently and regularly concave from that point to base of 
pectoral fin; lure with a very short pedicle and a large trilobate head, the median portion of which is 
