FISHES OF HAWAIIAN ISLANDS. 67 1 
margin straight; gill-membranes rather widely joined across throat and forming a wide free border 
posteriorly. 
Profile but little elevated at front of first dorsal, the base of which is not oblique; second dorsal 
spine broken, the basal portion bearing 3 strong distantly placed hooks; longest dorsal ray 0.7 length of 
head; second dorsal very low throughout; base of first dorsal 0.8 the interspace between dorsals; anal 
low, originating under middle of first dorsal; pectoral extending to opposite twelfth anal ray, its length 
0.7 that of head; tips, of ventrals injured, so their length can not be given; anal opening anterior in 
position, its distance from inner base of ventrals being 0.7 its distance from front of anal fin. 
Scales on back and sides of body have all been lost; on predorsal region each scale has about 10 
slender distinct spines arranged in 1 median and 2 parallel lateral series; the spines of the median series 
little longer than the others, none of them located on ridges; side and upper part of head, including 
snout, entirely invested with spinous scales; lower side of snout and anterior half of space between 
mouth and infraorbital ridge, naked; posterior half of supraoral area scaled continuously with the 
cheek; mandible with a few scales, the others apparently having been lost. 
Color grayish, darkened by the broad dusky margins of the scales; sides and lower surface of 
head and abdomen jet-black; mouth blackish; lining of opercles black, the gill-cavity otherwise light; 
lining of abdominal cavity blackish; barbel whitish; ventral fins black, other fins dusky translucent. 
But one specimen was procured. 
Macrourus hebetatus, new species. Fig. 262. 
Type, 125 mm. long, from station 3925, off the south coast of Oahu Island, depth 299 to 323 
fathoms; type, No. 51608, U. S. Nat. Mus. 
Strongly resembling M. ectenes Gilbert & Cramer, also from Hawaiian waters, but differing in the 
much smaller eye, the number of dorsal and ventral rays, the smooth rostral tubercles, the armature of 
scales, and the color. 
Body rather short and deep, the depth at origin of dorsal contained 1.2 times in length of head. 
First dorsal ii, 12; V. 8; P. 24; eleven scales in an oblique series from lateral line to base of dorsal 
spine. 
Head short, cuboid, with vertical cheeks and vertical anterior profile to snout; axial length of the 
very short snout 0.7 its width, which equals the greatest diameter of orbit; snout ending in a small 
perfectly smooth tubercle, from which extends backward a median ridge, which is angulated at a 
point midway between nostrils; a sharp ridge bounds the nasal fossa above and joins the supraorbital 
rim; no distinct lateral pair of rostral tubercles, and no spines on any of the exposed points or ridges; 
mouth small, slightly oblique, scarcely overpassed by the rostral tubercle or the suborbital ridge; max- 
illary reaching a vertical line which crosses eye half way between its anterior edge and the front of 
pupil, its length 3.3 in head; upper jaw with a moderate villiform band of teeth, those of the outer 
series definitely enlarged, forming small canines; mandibular teeth in a narrow villiform band; barbel 
small, 0.25 diameter of orbit; distance from front of premaxillaries to rostral tubercle 0.7 diameter of 
F.C.B.1903, Pt. 2—7 
