collected during the Voyage of the ^ Challenger.^ 185 



below the posterior margin of the eye, and is dilated behind. 

 Cleft of the mouth oblique. The origin of the dorsal fin is 

 nearer to the end of the snout than to the root of the caudal, 

 behind the base of the ventrals ; its last ray is in the vertical 

 of the fourth or fifth anal ray. The pectoral extends to the 

 middle of the ventral. Scales smooth, deciduous. There are 

 seven round pearl-coloured patches between the adipose fin 

 and the caudal. 



Antarctic Ocean, 1975 fathoms. 



Sco^elus mizolepis. 

 D. 13. A. 9. 



Height of the body two sevenths of the total length (with- 

 out caudal), the length of the head rather less than two 

 fifths ; the least depth of the tail is one half of its free 

 portion. Head very thick, with short snout. Eye very small, 

 about one seventh of the length of the head and one half 

 of that of the snout. Posterior margin of the prseopercu- 

 lum subvertical ; lower jaw sliglitly prominent ; cleft of the 

 mouth rather oblique; the maxillary reaches to below the eye 

 and is moderately dilated behind. Origin of the dorsal iin 

 somewhat nearer to the extremity of the snout than to the 

 caudal fin, and behind the base of the ventrals, which is below 

 that of the pectorals ; the last dorsal ray is above the middle 

 of the anal. Pectoral fin long, extending at least to the 

 middle of the anal fin. Adipose fin none. The scales, which 

 are lost, appear to have been of unusually large size. Black. 



South of New Guinea, 800 fathoms. 



8copeliis crassiceps. 

 D. 15. A. 9-10. L. lat. 30? 



The height of the body is one fourth of the 'total length 

 (without caudal), the length of the head one third ; the least 

 depth of the tail is two fifths of its free portion. Head very 

 thick, with short snout. Eye small, one seventli of the length 

 of the head, and one half of that of the snout ; posterior mar- 

 gin of the pra3operculum descending obliquely backwards ; 

 lower jaw slightly prominent ; cleft of the mouth rather 

 oblique ; the maxillary reaches to behind the eye, and is 

 moderately dilated behind. Origin of the dorsal fin nearer to 

 the extremity of the snout than to the caudal fin, and imme- 

 diately behind the base of the ventrals ', its last ray is above 

 the anterior anal rays. Pectoral fin long, reaching to or 

 beyond the end of the anal fin. Black. 



Atlantic and Antarctic Oceans, 675-1500 fathoms. 



