6. scopelus. 409 



than the others. Lower parts with the pearl-coloured dots usually 

 found in this genus ; an elliptical pearl-coloured patch sometimes 

 on the back of the tail, and sometimes at its lower side. 

 Hah. ? 



a—b. Two and a half inches long. Old Collection. 

 c. Two inches long. From the Haslar Collection. 



8. Scopelus caninianus. 



? Myctophum punctatum, Bonap. Faun. Ital. Pesc. c. fig. (not Rafin.). 

 ? Scopelus caninianus, Cuv. Sf Vai. xxii. p. 445. 



D. 12. A. 19. V. 8. L. lat. 40. 



The height of the body is two-ninths of the total length (without 

 caudal), the length of the head two-sevenths ; the least depth of 

 the tail is two-fifths of the height of the body ; the depth of the 

 head is contained once and one-third in its length ; diameter of the 

 eye one-third of the length of the head ; distance between the 

 posterior margin of the orbit and the praeopercular edge one-half 

 of the diameter of the eye. Snout short and obtuse, with its upper 

 profile abruptly bent downwards. Cleft of the mouth slightly oblique, 

 with the jaws equal in front. The maxillary reaches to the angle 

 of the praeoperculum, and is gradually and slightly dilated behind ; 

 posterior margin of the praeoperculum subvertical. The origin of 

 the dorsal fin is somewhat nearer to the extremity of the snout than 

 to the root of the caudal, and immediately behind the base of the 

 ventral; its last ray is immediately before the vertical from the 

 origin of the anal. The pectoral fin extends to the middle of the 

 ventral. Scales perfectly smooth, those of the lateral line larger 

 than the others. No luminous substance below the eye. 



Mediterranean and neighbouring parts of the Atlantic. 



a-b. Three inches long. Presented by E. P. Webb, Esq. 



9. Scopelus metopoclampus. 



Myctophum metopoclampum, Cocco, in Giorn. Lett. Sc. <SVc. fasc. 77. 



p. 144; Bonap. Faun. Ital. Pesc. c. fig. 

 Nyctophus metopoclampus, Cocco, Lett. s. Salmon, p. 24. tab. 3. fig. 8. 

 Scopelus metopoclampum, Cuv. 8f Vol. xxii. p. 442. 



D. 15. A. 15. 



The height of the body is contained thrice and one-third in the 

 total length (without caudal), the length of the head thrice and two- 

 thirds ; the least depth of the tail is two-fifths of the height of the 

 body; head rather higher than long; eye large, one-third of the 

 length of the head. Snout extremely short and obtuse, with its upper 

 profile abruptly bent downwards, and with the pearl-coloured lumi- 

 nous apparatus occupying nearly its whole front and extending 

 backwards over the infraorbital bone. Cleft of the mouth slightly 

 oblique. The maxillary reaches nearly to the angle of the praeoper- 

 culum, and is not dilated behind. The origins of the dorsal and 



