FISHES OF HAWAIIAN ISLANDS. 
679 
The pyloric caeca branch profusely from a few trunk -like stems, there being about 200 terminal 
twigs. The stomachs contain fragments of shrimp-like Crustacea and numerous eyes and jaws of squid. 
The latter are almost universally present, and indicate that squid form a very important element in 
their food. 
Specimens were taken at the following stations: Nos. 3867, Pailolo Channel, 284 to 290 fathoms; 
3868, Pailolo Channel, 294 to 684 fathoms; 3884, Pailolo Channel, 284 to 290 fathoms; 3907, off the 
south coast of Oahu, 304 to 315 fathoms; 3925, off the south coast of Oahu, 299 to 323 fathoms; 3979, 
near Bird Island, 222 to 387 fathoms; 3988, near Kauai, 165 to 469 fathoms; 4085, off the north coast 
of Maui, 267 to 283 fathoms; 4087, Pailolo Channel, 306 to 308 fathoms; 4088, Pailolo Chanpel, 297 to 
306 fathoms; 4089, Pailolo Channel, 297 to 304 fathoms; 4090, Pailolo Channel, 304 to 308 fathoms; 
4096, Pailolo Channel, 272 to 286 fathoms; 4097, Pailolo Channel, 286 fathoms; 4117, off the northwest 
coast of Oahu, 253 to 282 fathoms; 4130, near Kauai, 283 to 309 fathoms; 4134, near Kauai, 225 to 334 
fathoms. 
Malacocephalus Ixvis Gilbert & Cramer, Proc. U. S. Nat. Mus., XIX, 1897, 432; not of Lowe. 
Trach.on.urus sentipellis Gilbert & Cramer. 
This is one of the rarer species of the group, but 14 specimens having been obtained, distributed 
among 10 dredge-hauls. 
The margins of the scales appear distinct owing to the absence of spines around the edge, but 
the' scales are firmly embedded, without free margins, and overlap little if at all. The spines on 
the anterior scales appear for the most part without definite arrangement; there are sometimes, 
however, one angulated vertical series near anterior margin of scale, and a median longitudinal series; 
lateral spines frequently fill up the interspace between these, forming thus a lozenge-shaped patch. 
Posteriorly where the spines are long and appressed they give an evenly villous appearance to sides 
of tail. 
Head with contours everywhere rounded, without ridges or sharp angles; mouth barely overpassed 
laterally by the wide flat suborbitals, its width nearly equal to its length; narrow villiform bands of 
teeth in each jaw, the outer series in the upper jaw little if at all enlarged; gill-membranes widely 
joined at throat and wholly free from isthmus; six or seven scales between lateral line and base of 
anterior portion of second dorsal; length of base of first dorsal contained from 1 to 1.75 times in 
interspace between dorsals; all but the innermost ventral rays reach beyond origin of anal fin; distance 
from axil of ventrals to front of anal contained 2.25 to 2.75 times in distance from axil of ventrals to 
throat. Some young specimens are uniformly black. There are variations in the contour of the snout, 
which is sharper and narrower in some specimens than in others. The scales vary in length of spines 
and in distinctness of outline. 
The species was taken at the following stations: Nos. 3997, vicinity of Kauai, 418 to 429 fathoms; 
4007, vicinity of Kauai, 508 to 557 fathoms; 4018, vicinity of Kauai, 724 to 804 fathoms; 4028, vicinity 
of Kauai, 444 to 478 fathoms; 4030, vicinity of Kauai, 423 to 438 fathoms; 4106, Kaiwi Channel, 335 to 
350 fathoms; 4107, Kaiwi Channel, 350 to 355 fathoms; 4109, Kaiwi Channel, 442 to 449 fathoms; 
4112, Kaiwi Channel, 433 to 447 fathoms; 4113, Kaiwi Channel, 395 to 433 fathoms. 
Trachonurus sentipellis Gilbert & Cramer, Proc. U. S. Nat. Mus., XIX, 1897, 429, pi. xlv, fig. 1. 
Family PLEUR0NECTID7E. 
Poecilopsetta hawaiiensis, new species. Plate 95. 
Type, a male, 126 mm. long, from station 3858, Pailolo Channel between Molokai and Maui, depth 
128 to 138 fathoms; type, No. 51638, U. S. Nat. Mus. 
Head 24 hundredths in total length without caudal (27 in female cotype); length of snout, from 
lower eye 3, from upper eye 6 (3.5 and 7 in female); interorbital width 2 (1.5 in female); diameter of 
upper eye 7.5; length of maxillary 7; depth of body 54; depth of caudal peduncle 13; longest dorsal 
ray 11; longest caudal ray 25; length of right pectoral 17; left pectoral 11; chord of arch of lateral line 
22. D. 65; A. 54; P. 10; lateral line 85. 
Body dextral, deeply elliptical, very thin, transparent at bases of dorsal and anal fins; upper and 
lower profiles evenly and equally arched; head small; interorbital space narrow and scaled; eyes large, 
