121. MACRURID^ MACRURUS. 
811 
Teeth villiform or cardiform, in bauds, on the jaws only; tip of lower 
jaw with a barbel; premaxillary protractile. Dorsals two, the first 
short and high, of stiff, spine-like branched rays; the second dorsal 
very long, of very low feeble rays, continued to the end of the tail ; 
anal fin similar to the second dorsal, but much higher; no caudal fin; 
veutrals small, subjugular, each of about 8 rays. Branchiostegals G 
or 7. Lateral line present. Gills 4, a slit behind the fourth. Gill- 
rakers very small; gill-membranes narrowly united to the isthmus; no 
pseudobranchim; pyloric coeca numerous; air-bladder present. Genera 
about 5 ; species about 15, chiefly of the northern seas, in deep water. 
(Macruridw Gunther, iv, 390-398.) 
a. Scales of moderate size. 
b. Snout jjroduced, conical ; cleft of moutli entirely inferior Macrurus, 447. 
bb. Snont short, obtuse, truncated; cleft of month lateral. 
CORYPH^NOIDES, 448. 
447.— MACRURUS Bloch. 
{Lepidoleprua Risso.) 
(Maci’ourus Bloch, Ichth. v, 152, 1787 : type Macrourus rupestris Bloch, not of Gunner.") 
Snout broadly conical, high, projecting beyond mouth; mouth mod- 
erate, its cleft horizontal, U-shaped, entirely inferior; teeth of the outer 
series not enlarged; head sometimes with roughened bony ridges, one 
of which, on the suborbital and preorbital, simulates the suborbital 
stay of the Cottoids; eyes very large; scales very rough, keeled, the 
keels usually ending in spines. Deej) water fishes ; mostly northern. 
This genus grades into the next, and is perhaps unworthy of retention, 
(/jtazjonc, long; dupd^ tail.) 
a. Suborbital region with a conspicuous bony ridge extending from the preopercle 
along the suborbital and preorbital to the end of the projecting snout. 
1251. M. fal>a’icii Sundevall. — Rat-tail; Grenadier. 
Dusky, inside of mouth and gill-openings black; peritoneum black. 
Snout sharp, nearly as long as eye, 3.J in head; an area of loose, rough- 
ish, naked skin between the suborbital ridge and the mouth; supra- 
ocular and occipital ridges present, the interocular space concave. 
Scales each with a longitudinal serrate ridge ending in a spine; first 
ray of dorsal denticulated toward the tip; vent behind origin of second 
dorsal; 5 rows of scales between first dorsal and lateral line. Head 4J; 
depth G. Eye 3 in head. D. 12-124; A. 148; Y. 8; Lat. 1. ca. 125. 
Massachusetts to Greenland and Norway, in deep water; not rare. 
{Coryphcena rupestris Miiller, Zool. Dan. Prodr. 1776, 443 (not of Gunner): Macrourus 
rupestris Bloch, i, 152: Macrurus rupestris Gunther, iv, 390: Macrurus fabricii feuude- 
vall, Vet. Akad. Handl. 1840, 6.) 
