DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 391 



Macrurus carinatus, Giiuther {lor. cit., pi. xxxiii, Fig. A), from near Priuce Edward 

 Islaud, iu 310 fathoms. 



ilacrurus stelgidoJcjjiii, Gilbert (Proc. U. S. l!Tat. Mus., xiii, 18'JO, 110), was takeu by the 

 Albntross off the coast of ('alifornia i7i liOT fathoms. 



MACEURUS BERGLAX, LacepJide. (Figure 334.) 



Macrurus lerglax, Lac^pJide, Hist. Nat. Poiss. — Jordan, Cat. Fish. N. Amer., 1887, 131. 



Macrurus Fabricii, SuNDEVAL, Vet. Akad. Handl., 1840, 6. — Collett, Norges Fiske, 1875, 128— Lilljeborq, 



Sverig. og. Norges Fiske, 242. — Goode and Bean, Cat. Fish. Essex Co. aud Mass. Bay, 1879, 7. — GuN- 



THER, Challenger Report, xxil, 130. 

 Macrurus rupestris, GuNTHER, Cat. Fish. Brit. Mus., IV, 1862, 390. 



Short snout, suV)trihedral, pointed in front, much shorter than the large eye, which is 

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

 one-half length of maxillary, aud not continued beyond it.s expanded vertical process. The 

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

 naked. Axil of pectoral naked. Space between the ventrals scaled. Body scales each with a 

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

 ticularly of the head, have also 2 lateral keels. There are <i longitudinal series of scales 

 between the flr.st 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.'l2+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 I>ank, where the halibut fishermen catch it, or somj closely allied 

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

 floating at the surface, oft' 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. Giinther 

 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 lieport, xxii, l.'iO.) 



MACRURUS SCLERORHYNCHUS, Valenciennes. 



Lepidoleprus sclerorhynchus, Valenciennes, in Webb and Bertlielot, Ichthyologie des lies Canaries, 1836-14, 



80, pi. xiv, lig. 1. 

 Macrurus scUrorhynchus, Valenciennes, Ioc. ci(.— Guntuer, Cat. Fish. Brit. Mus., iv, 394 ; Challenger Report, 



XXII, 1887, 133, pi. xxxii, fig. A.— ViNCiGUERRA, Ann. Mus. Geuova, xiv, 1879, 622, pi. 11.— Vaillant, 



Exp. Sci. Travoilleur ct Talisnian, 237, ]i\. xxii, fig. 3. 



Snout conically projecting beyond the mouth, with sharp and smooth canthus ro.stralis; 

 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, ])rominent in its whole 

 length. The cleft of the mouth does not 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 fiat, its width being equal 

 to the vertical diameter of the eye. The horizontal diameter of the eye; e(inals 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 being sometimes more prcuninent than the otheis; only the terminal spine- 

 lets of the central series projects sometimes 1)eyoiid the margin of the scale. There are 

 6 scales in a transver.se series between the first dorsal spine and the lateral line. Second 

 dorsal spine somewhat iiroduced, armed in front with rather closely set barbs. The tlis- 

 tauce between the 2 dorsal fins equals the length of the head, the snout not included. 

 The outer ventral ray i)roduced into a lihiment. Color, brown. 



Kadial formula: D. 11; A. 9.5; V. 17: V. 7. {(fiinfker.) 



