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; 

 aual fin similar to the second dorsal, but much higher; no caudal fin; 

 ventrals small, subjugular, each of about 8 rays. Branchiostegals 6 

 or 7. Lateral line present. Gills 4, a slit behind the fourth. Gill- 

 rakers very small; gill-membranes narrowly united to the isthmus; no 

 pseudo branchiae ; pyloric coeca numerous; air-bladder present. Genera 

 about 5 ; species about 15, chiefly of the northern seas, in deep water. 

 (Macruridce Giinther, iv, 390-398.) 



a. Scales of moderate size. 



1). Suout produced, conical ; cleft of mouth entirely inferior MACRURUS, 447. 



bb. Snout short, obtuse, truncated; cleft of mouth lateral. 



CORYPH^ENOIDES, 448. 



447. MACRURUS Bloch. 



(Lepidoleprus Risso.) 



(Macrourus 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 aud preorbital, simulates the suborbital 

 stay of the Cottoids; eyes very large; scales very rough, keeled, the 

 keels usually ending in spines. Deep water fishes ; mostly northern. 

 This genus grades into the next, and is perhaps unworthy of retention. 

 (fjLaxpos, long; do pa, 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. HI. faSiracii Suudevall. Rat-tall; Grenadier. 



Dusky, inside of mouth and gill-openings black; peritoneum black. 

 Snaut sharp, nearly as long as eye, 3J in head; an area of loose, rough- 

 ish, naked skin between the suborbital ridge and the mouth; supra- 

 ocular and occipital ridges present, the iuterocular 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 aud lateral line. Head 4J; 

 depth G. Eye 3 in head. D. 12-124; A. 148; V. 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 Giinther, iv, 390: Hacrurus fabricii Sunde- 

 vall, Vet. Akad.Handl. 1840, 6.) 



