CENTROSCYLLIUM FABRICII. 231 



snout from eye equal less than length of orbit 



spine of first dorsal behind ends of pectorals ritteri (page 232) 



spine of first dorsal above ends of pectorals ornatum (page 233) 



scales coarser granulations .... granulatum (page 233) 



Centroscyllium nigrum. 



Centroscyllium nigrum Garman, 1899, Mem. M. C. Z., 24, p. 28, pi. 1, f. 2, pi. 4-5, pi. 69, f. 1; Regan, 



1908, Ann. mag. nat. hist., ser. 8, 2, p. 40. 

 Centroscyllium ruscosum Gilbert, 1905, Bull. U. S. fish comm., 23, p. 580, fig. 230. 



Moderately slender and elongate. Head large, broad, depressed, from snout 

 to pectorals little more than one fourth of the total length. Snout broadh'' 

 rounded in front, length about equal to width of forehead, nostrils nearer to end 

 than to eye. Eye large, orbit longer than the snout. Mouth wide, moderately 

 arched, with a deep straight groove and with labial folds on both jaws at each 

 angle. Upper teeth with three cusps and two rudiments, lower with five cusps; 

 median cusp largest. Gill openings hardly as wide as the eyes, in front of the 

 pectorals. Dorsal spines long and slender, hindmost one and one half times as 

 long as the foremost, each spine with two grooves along each side. Origin of 

 first dorsal above axils of pectorals, origin of the second above the hind ends of 

 the bases of the ventrals. Scales small, with stellate bases and slender acumi- 

 nate, erect, hooked cusps, not very closely placed. 



Black. 



Taken in the Pacific between 6° and 7° north latitude and between 81° and 

 82° of west longitude at depths of 546 to 555 fathoms. Albatross. 



CENTROSCYIiLIUM FABRICII. 



Plate 10, fig. 5-8. 



Spinax fabricii Reinhardt, 1828, Dansk. selsk. Forh., 3, p. 16. 



Centroscyllium fabricii Muller & Henle, 1841, Plagios., p. 191; Dumeril, 1865, Elasm., p. 449; Gunth., 



1870, Cat. fi.shes Brit, mus., 8, p. 425; Jordan & Gilbert, 1882, Bull. 16, U. S. nat. mus., p. 16; 



GtJNTHER, 1887, Challenger rept. Zool., 22, p. 6; Vaillant, 1888, Travailleur et Talisman, Poissons, 



p. 72; GooDB & Bean, 1896, Mem. M. C. Z., 22, p. 11, pi. 2, f. 7; Jord. & Everm., 1896, Bull. 



47, U. S. nat. mus., p. 56, pi. 8, f. 26; Collett, 1905, Rept. Norw. fish. & mar. invest., 2, p. 25; 



Regan, 1908, Ann. mag. nat. hist., ser. 8, 2, p. 40. 



Elongate fusiform; head short, slightly more than one fifth of the total 

 length, broad, depressed; snout short, length from the mouth equal the width 

 of the mouth, or more than twice the internarial space. Nostrils large, entirely 

 in the front half of the snout near the end; valve with a pointed lobe. Mouth 

 very wide, distance of angles from end of snout and from third gill opening about 



