DISCUSSION OF SPECIES AND THEEB DISTRIBUTION. 391 



Macrurus carinatus, Gunther (loc. cit., pi. \\\iii. Pig. A,, from near Prince Edward 

 Island, in 310 fathoms. 



Macrurus stelgidolepis, Gilbert (Proc. 0. S. Nat. Mus., xm, 1890, L16), was taken bj the 

 Albatross off the coast of California in -t;7 fathoms. 



MACRUEUS BEEGLAX, Lacepede. (Pigure334.) 



Macrurus berglax, lari'iTin', Bist. Nat. Poisa. — Jordan, Cat. Fish. X. Amer., 1887, 131. 



Macrurus Fabricii, Sundea \i., Wi. Akad. Ilandl.. 1840, 6. — Collett, Norges Fiske, is?:., 128— Liixjeboro, 

 Sverig. og. Norgea Fiske, l'Il'. — Goods and Bean, Cat. Fish. Esses Co. ami Mass. Bay, 1879, 7. — Gun- 

 ther, Challenger Report, xxu, 130. 



Macrurus rupestris, Gunther, Cat. Fish. Brit. Mus.. iv, im;l'. 390. 



Short sunlit, subtrihedral, pointed in front, much shorter than the large eye, which is 

 one-third or two-fifths the length of the head in adult specimens. Intermaxillary very short, 

 one-half length of maxillary, and not continued beyond its expanded vertical process. The 

 eye is oblong. The whole under-surface of the head below the suborbital and nasal ridge is 

 naked. Axil ofpectoral naked. Space between the veutrals scaled. Body scales each with a 

 single strong median keel, made ii|> of 5 or 8 spines directed backwards. Some scales, par- 

 ticularly of the head, have also 2 lateral keels. There arc U longitudinal scries of scales 

 between the first dorsal fin and the lateral line. The first dorsal spine indistinctly denticu- 

 lated towards the point. The length of the pectoral is nearly or quite one-half the length 

 of the head. The longest spine of the dorsal is very finely serrated along its anterior 

 margin, the serrations becoming obsolete near its base. Vent situated behind the origin 

 of the second dorsal fin. Gill-rakers very small, tubercular; 9 to 11 on the first arch. The 

 gill-membranes broadly joined, free from the isthmus behind. 



Radial formula: D. 12+124; A. 148; P. 18-19; V. 8. 



This form, originally discovered on the coast of Norway, has been found abundantly as 

 far south as Georges Bank, where the halibut fishermen catch it, or som ■ closely allied 

 form, on their trawls. The first specimen seen by American naturalists was picked up 

 floating at the surface, off the mouth of New York Harbor. The Albatross obtained it from 

 station 2528, in 41 - 47' N. lat., 65° 37' 30" W. Ion., at a depth of 677 fathoms. Gunther 

 knew it from Finmark and Greenland, as well as from New England. He calls attention to 

 remarkable individual variations in the specimens examined by him. His critical remarks 

 in this connection are of great importance. (Challenger lleport, xxu, 130.) 



MACEUEUS SCLEEOEHYNCHUS, Valenciennes. 



Zepidoleprtca sclerorhynchus, Valenciennes, in Webh and Berthelot, Ichthyologie des lies Canaries, 1836-44, 



80, pi. xiv, fig. 1. 

 Macrurus si lerorhynckus, Valenciennes, loc. cit. — GiJnther, Cat. Fish. Brit. Mus.. iv, 394; Challenger Eeport, 



xxu, 1887, 133, pi. xxxii. fig. A. — Vincigoerra, Ann. Mus. Genova, xiv, 1S79, 622, pi. n.— Vaillant. 



Exp. Sci. Traveilleur et Talisman, 237, pi. xxu, tig. 3. 



Snout conically projecting beyond the mouth, with sharp and smooth canthus rostralis; 

 a rough protuberance in front, and one on each side of the canthus. Mouth rather small, 

 situated at the lower side of the snout; infraorbital ridge sharp, prominent in its whole 

 length. The cleft of the mouth docs no! extend to below the center of the eye. Teeth in 

 villiform bands, in both jaws; those of the outer series of the upper jaw scarcely stronger 

 than the others. Barbel short and slender. Interorbital space flat, its width being equal 

 to the vertical diameter of the eye. The horizontal diameter of the eye equals the length 

 of the snout, and is two-sevenths of that of the head. 



The scales are covered with very small spinelets, which are arranged in about nine series, 

 the middle series 1 icing some times more prominent than the others; only the terminal spine 

 lets id' the central series projects sometimes beyond the margin of the scale. There are 

 (i scales in a transverse series between the first dorsal spine and the lateral line. Second 

 dorsal spine somewhat produced, armed in front with rather closely set barbs. The dis- 

 tance between the 2 dorsal lins equals the length of the head, the snout not included. 

 The outer ventral ray produced into a filament. Color, brown. 



Radial formula : D. 11: A. 95; P. 17: V. 7. (Gimther.) 



