48 



THE VOYAGE OF H.M.S. CHALLENGER. 



embedded in the skin. Lateral line rather wide, continuous. One dorsal fin ; ventrals 

 jugular ; the lower pectoral rays branched. Teeth in the jaws in villiform bands ; none 

 on the vomer or the palatine bones. Opercles unarmed ; ten brauchiostegals ; the gill- 

 membranes free from the isthmus and but slightly united in front. Air-bladder none. 

 Gills four ; pseudobranchise none ; gill-rakers short. 



Bathydraco antarcticus (PI. VIII. fig. A). 



Bathydraco antarcticus, Giintb., Ann. and Mag. Nat. Hist., 1878, vol. ii. p. 18. 

 D. 36. A. 31. P. 23. V. Jg. 



The greatest depth of the body is only one-third of the length of the head, which is 

 one-third of the total length (without caudal); the large eye occupies nearly the middle of 

 the length of the head, and is about one-fourth of its length. The entire upper surface 

 of the head is naked, but the cheeks and opercles are covered with small scales like the 

 body. The dorsal fin commences at a distance from the occiput, which is considerably 

 less than the distance of the occiput from the snout ; this fin is highest in front and 

 very low behind, terminating at some distance from the caudal fin. The origin of the anal 

 is opposite to the tenth dorsal ray. Caudal truncated ; pectoral fin very broad, with the 

 hind margin truncated and extending to the origin of the anal. Liglit coloured above ; 

 lower parts and gill-ajiertures black. 



This genus is clearly allied to Chcenichthi/s; its habitat at a great depth is evidenced 

 by the diminished j^roportion of earthy matter in the 1)ones of the skull ; Ijy its large 

 eye.s, wide muciferous channels, and coloration. 



Habitat. — South of Heard Island, Station 152 ; depth, 1260 fathoms. 



lines 



Aphritis, C. V. 

 Aphritis gohio. 



Aphritis gohio, Qiinth., Report on the Shore Fishes, Zool. Chall. Exp., pt. vi. p. 21, pl.^ix. 

 Habitat. — Southern coasts of South America, from surface to 147 fathoms. 

 Near Magellan Strait, Station 307; depth, 140 fathoms. One specimen. 



