90 DEEP-SEA FISHES OF THE ATLANTrC BASIN. 



lUIINOSCOPKLUS COCCOI (Cocco), Lutken. (Figure 104.) 



SoopeUis Cocco, Cocco, (iiorn. Sci. Litt. Art. Sicilia (No. 77). Palermo, 1829, 143 ("Scopelo de Cocco") Aleuni 

 Salmouidi ilol Mare do Messina (Nuovi .\iiu. .Sci. Nat.), 1838, 18, PI. ii, Fig. 6.— Bo.\.\pakte Fauna Italica, 

 Pesci. fasc. xxvii, PI. 1840. 



Scopelua Coccoi, Guntiieu, Cat. Fish. Brit. Mas., v,18l!4, 413; Clialleuger Report, -Kxxii, Pelagic Fishes, 30.— 

 GiGLloi.i, Elenco, 100. 



Ah/sia loricata, Lown, Proc. Zocil. Soc, 183S), 87; Trans. ZoJil. See. iii, 14. 



Heiglit of body -ii (perhaps in females) to 5 in total lenytli. Lenfjtli of head contained 

 rather more than 5 times in length (withont caudal). Tail slender, elongate, its least depth 

 one ftmrth of the height of the body. The diameter of the eye is contained 4 times in the 

 length of the head. Distance between the posterior margin of the orbit and the preoper- 

 cular edge is two-thirds of the diameter of the eye. Preopercular edge obliiiuely descending 

 backwards. Snout conical, the upper part projecting beyond the lower, the upper and 

 lower i)roflles nearly equally curved. The maxillary extends to the angle of the preoper- 

 cuhim and is scarcely dilated. The dorsal origin is nearer to the end of the snout than to 

 the root of the caudal, and behind the base of the ventral; the last ray of the dorsal is in 

 the vertical from the second or third anal ray. Pectoral extends to the middle of ventral. 



In some s])ecimens each of the scales on the back of the tail has a pearl colored dot; 

 this is probably a sexual character of the male. The back and the Da])e are blackish; sides 

 silvery, with gold and silver reflections. The inside of the moutli is blackish, the iris 

 silvery, the pupil transparent. Eadial formula: D. 10-12; A. 20-21 ; Y. S; 1 | 41 | 3. 



This sijecies, although said to be very rare in the Mediterranean, would ai)pear to be 

 one of the most abundant of the sui-face forms in the Western Atlantic, for many hundreds 

 of specimens have been obtaine<l by the Albatross at the surface, often from twenty to fifty 

 in a single locality taken with a dip net; sometimes by electric light after dark. 



Specimens of this species were obtained by the Albatross from the following localities: 

 No. 43817, U. S. N. M., from station 2381, in 28° 05' N. lat., 87° 5G' 14" W. Ion., at a depth of 

 1,330 fathoms ; No. 43814, U. S. N. M., at the surface at station 25(>0, in 3!»'3 20' N. lat., G8a03' 

 30" W. Ion., at a depth of 1,782 fathoms ; Nos. 43820, 43821, and 43822, U. S. N. M., taken in a 

 towing net on September 19, 1885, in 39° N. lat. 72° W. Ion. (two of the individuals appear 

 to have been nearing the spawning time) ; numerous specimens (No. 38191, U. S. N. M.), in 30° 

 45' N. lat., 74^ 28' 30" W. Ion.; No. 43813, U. S. N. M., from station 2571, in 40° 09' 30" N. 

 lat., 67° 09' W. Ion., taken at the surface in a tow net; No. 43818, U. S. N. M., from station 

 2573, in 40° 43' 18" N. lat., 06^ 09' W. Ion., in 1,742 fathoms; No. 43812, TJ. S. N. M., from 

 station 25(i(i, in 37° 23' N. lat., 68° 08' W. Ion., at a depth of 2,020 fathoms; at the surface 

 from station 2285, in 35° 21' 25" N. lat., 70° 24' 25" W. Ion., at a depth of 13 fathoms; No. 

 43816, U. S. N. M., at the surface at station 2584, in 39° 05' 30" N. lat., 70° 23' 20" W. 

 Ion., at a depth of 541 fathoms; No. 43819, IT. S. N. M., from station 2.522, in 42^ 20' N. lat., 

 65° 07' 30" W. Ion., at a depth of 104 fathoms; No. 38171, U. S. N. M., from station 2724, in 

 30° 47' N. lat., 13° 25' W, Ion., at a depth of 1,641 fathoms; No. 43823, U. S. N.M., from 

 station 2727, in .300 ;55' N. lat., 74° 03' 30" W. Ion., at a depth of 1,239 fathoms; and No. 

 43824, U. S. N. M., li-om station 2724, in 36° 47' N. lat., 73° 25' \V. Ion., at a depth of 1,641 

 fathoms. The British Museum has it from the Gulf of Guinea and the Congo exjjeditions. 

 Lowe's Madeira types are atCand>ridge in the Museum of the Philo.sophical Society. 



Additional specimens (No. 4.3825, U. S. N. M., No. 4, Gloucester Donations) were taken 

 by the Gloucester fishing vessels on the Fishing Banks. The U. S. frigate Constitution 

 (Dr. W. n. Jones) obtained several from lat. 31° 30' N., Ion. 68° 36' W. 



RHINOSCOPELUS ANDREW, Lijtken. 

 Scopelus (Rhinoscoj>elm) Andreu; LCtken, Si)oiia.Atlantica, 24,5, fig. 3. 



A species closely resembling S. Coccoi, in form, but having a single anterolateral photo- 

 l>hore, placed much as in ,S'. Coccoi, and tliree posterolaterals in an oblitjuely vertical low, 

 arranged as in Mycto2)lmm punctatum. Pectoral fin long, falcate, passing far beyond the 

 anterolateral photophore and considerably beyond the vertical from the origin of the dorsal. 



