FISHES OF HAWAIIAN ISLANDS. 
667 
Color uniform black, less intense on side of tail, and on snout and top of head, which are partly 
translucent; as in other species of the genus, a strip along each side of throat (concealed by the gill- 
flap) and an area extending above and behind base of pectorals is silvery, crossed by very fine parallel 
black lines, hardly to be made out without a lens; owing to deposition of black pigment, these striated 
areas are difficult of detection in some specimens of this species; another generic mark consists in the 
presence of 2 small opaque lens-like prominences on midventral line, one on middle of breast in front 
of ventral fins, the other immediately in advance of anal opening; the 2 are connected by a raised 
strand, evident on inner abdominal wall. 
The largest specimen taken is 185 mm. long, with the very slender tail uninjured; the head is 35 
mm., the greatest depth 27 mm. In different specimens the interspace between dorsals varies from 
2.5 to 1.5 times the base of the first. 
The species was taken at the following stations: Nos. 3892, off the north coast of Molokai, 328 
to 414 fathoms; 3904, off the north coast of Molokai, 295 fathoms; 3985, vicinity of Kauai, 430 to 477 
fathoms; 3989, vicinity of Kauai, 385 to 500 fathoms; 3997, vicinity of Kauai, 418 to 429 fathoms; 
4019, vicinity of Kauai, 409 to 550 fathoms; 4109, Kaiwi Channel, 442 to 449 fathoms; 4137, vicinity of 
Kauai, 411 to 476 fathoms; 4139, vicinity of Kauai, 339 to 512 fathoms; 4166, vicinity of Bird Island, 
293 to 800 fathoms; 4180, vicinity of Niihau, 417 to 426 fathoms. 
Macrourus ectenes Gilbert & Cramer. 
This species was not obtained by the expedition of 1902; only the type is known, a young indi- 
vidual 5i inches long. It is well distinguished from other Hawaiian species. 
Macrourus ectenes Gilbert & Cramer, Proc. U. S. Nat. Mus., XIX, 1897, 423, pi. 44, fig. 1. 
Macrourus propinquus Gilbert & Cramer. 
Numerous specimens were secured and form the basis for the following notes, which include some 
corrections and additions to the description of the type. 
Head rather small, compressed; snout short and high, its length, its depth, and the width between 
the nostrils all equal; median tubercle at tip of snout but slightly above middle of pupil; lower ante- 
rior profile of snout very oblique, or almost vertical; front of premaxillaries slightly in advance of 
nostrils; transverse width of mouth slightly less than its length; gill-membranes rather narrowly 
united across isthmus, with a rather wide free fold posteriorly. 
Serrse of second dorsal spine coarse, widely spaced, and evenly distributed along its entire length, 
about 9 in number in the young, becoming smaller and more numerous (about 15) in adults; the 
spine becomes filamentous toward its tip, its total length about equaling that of head; the interspace 
between dorsals varies between three-fourths and four-thirds the length of the base of first dorsal. 
Two specimens in the present collection, 23 and 27 cm. long, are much larger than the type, and 
have the scales provided with more numerous series of spines. Those on the middle of the sides 
above lateral line have 7 to 11 parallel series of rather long appressed spines, which rise independently 
from the scale, and are not connected by ridges; scales on head and nape are similar, but smaller and 
more crowded, with the series of spines parallel or slightly diverging; on the breast the spines are 
much shorter than elsewhere, the series parallel or slightly diverging; basal half of first dorsal whitish, 
contrasting strongly with the black distal half. 
The pyloric caeca in four specimens number 22, 26, 30, 32. The specimens taken June 21 at 
station 4021 had been feeding exclusively on small eggs, with which the stomachs of all were distended. 
At this date the male and female reproductive glands had reached a very moderate development. On 
August 1, at station 4137, a single specimen was taken, larger than any other obtained, and at a greater 
depth. In this the eggs were mature, being extruded from the body by the pressure incident on 
rising to the surface. The stomach was empty and strongly contracted. 
The species was taken at the following stations: Nos. 4021, off the east coast of Kauai, 286 to 399 
fathoms; 4022, off the east coast of Kauai, 376 to 399 fathoms; 4137, off the east coast of Kauai, 411 to 
476 fathoms. 
Macrourus propinquus, Gilbert & Cramer, Proe. U. S. Nat. Mus., XIX, 1897, 424, pi. xlii, fig. 2. 
