80 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



margin and the root of the caudal. Pectorals very long, reaching to above middle of anal. 

 Ventral reaches almost to anal origin. Caudal moderate, well forked. Mediolaterals, 3; 

 posterolaterals, 2. Precaudals, 3-4, the last attlie end of the lateral line. Posterolaterals 

 in advance of the first dorsal, forming a gently curved series continuous with anterior half 

 of broken superanal series. 



Radial formula: D. 13; A. 13. Scales, 36. 



A single specimen (No. 43777, U. S. N. M.), 52 millimeters in length, was obtained by 

 the Gloucester fleet, it being No. 100 of the Gloucester series. 



The species is dedicated to the author of the Catalogue of the Fishes of the British 

 Museum and the Fishes of the Challenger, monumental works, which are the foundations of 

 ichthyological work in the last half of the nineteenth century. 



LAMPANYCTUS WARMINGII, (Lutkkn), Goode and Bean. 



Scopelus (Xotoscopelus) Warmingii, Lutkex, Spolia Atlautica, n, 1892, 259, fig. 19. 



A species closely allied to Lampanyctus Giintheri,hamug long pectorals, and precaudals 

 3+1, the last at end of lateral line. Superanals, 7 + .">. Radial formula: D. 12; A. 13. 



This species is distinguished from L. Giinthcri by having one more precaudal photo- 

 phores in the first group and by having a shorter pectoral, which docs not reach to the 

 origin of the anal, while, in L. Oiintheri it extends far behind the eud of the pectoral and 

 nearly to the middle of the base of the anal. The posterolaterals, one or two in number, 

 are continuous in the gently curved series of the anterior half of the broken superanal series. 



LAMPANYCTUS GEMMIFEE, Goode and Bean, u. s. (Figure 88). 



Height of body is contained 5i times in total length; length of head 3if times. Least 

 depth of tail two-thirds height of body. Eye large, nearly one-fourth length of head. Dis- 

 tance between posterior margin of orbit and preopercular edge equals diameter of eye. 

 Snoutobtuse, very short, its length less than half diameter ol eye. Maxillary scarcely dilated 

 behind. Origin of dorsal midway between tip of snout and dorsal mirror. Base of dorsal 

 equal to length of postorbital part of head, and about equal to longest dorsal ray. Ventral 

 origin slightly in advance of dorsal origin. Pectoral reaches slightly beyond origin of anal. 

 Scales smooth, those of the lateral line scarcely larger than others. Mediolateral photo- 

 phores, 2; posterolaterals, 2, the latter one above the other, or nearly so. Precaudals, 4-5 

 in nearly horizontal though curved row, the last far below the end of the lateral line. 

 Anterolaterals, 3, in nearly continuous line with lowest prepectoral and mediolaterals. Num- 

 ber of superanals 7-8. The pearly mirror upon the upper edge of the caudal peduncle as 

 long as the eye, and much longer than the one extending from the end of the anal to the 

 root of the caudal; slender and narrow, two-thirds as long as the head. 



Eadial formula: I). II, 12; A. II, 10, V. 8, P. 15, 16. Scales 5, 38, 5. 



Gill rakers, 6 above and 12 below angle of first arch; longest two-thirds as long as eye. 



A single individual (No. 35604, U. S. N. M.), the type of the species, 7£ inches in length, 

 was taken by the Albatross at station 2201, in 30° 30' 45" N. lat., 71° 35' 15" W. Ion., at a 

 depth of 538 fathoms. Scopelus Bonapartii of Cocco and Bonaparte is nearly allied. 



LAMPANYCTUS GEMELLARII, (COCCO), Goode and Bean. (Figure 87.) 



Xi/ctophus Gemellarii, Cocco, Alenni Salmon, 1840, 26, pi. m, fig. 9 (Nittofo di Gemellaro). 



Myctophum Gemellarii, Bonaparte, Faun. Ital. Pesc. fasc. 37, xxxvn, pi. 



Scopelus Gemellarii, Cuvieh and Valenciennes, Hist. Nat. Poiss., xxn, 445. — Gi'-xther, Cat. Fish. Brit. Mus., 



v, 415.— Giglioli, Eleuco, 101.— Kaffaele, Mitt. Zool. Stat. Naples, 183, pi. vn, fig. 8. 

 ■Scopelus uraeoclampus, Faccioi.a, Naturalista Siciliano. 



Height of body one-fourth of total length; length of head contained 3J times in total 

 length. Least depth of tail one half the height of body. Height of head equal to distance 

 from anterior margin of pupil to eud of opercular flap. Eye moderate, its diameter 3§ in 



