20 AET. 13. S. TANAKA : 



representing the first dorsal spine, horny, flexible, above eye, 

 not reaching dorsal tentacle, with a pear-shaped bulb and a 

 terminal tuft. Second dorsal spine represented by dorsal tentacle, 

 a little shorter than the length of maxillary ; the distance between 

 the tentacle and the median dorsal caruncle one-fourth the distance 

 between the latter and the insertion of dorsal. Dorsal rays 

 inserted above vent ; anal below the third ray of dorsal ; 

 membrane of both the fins adnate to caudal base ; tip of rays of 

 both fins extending far beyond caudal base. Caudal rays long, 

 some of them branched into two posteriorly, but the length of 

 the branches uncertain owing to the bad state of preservation. 

 Three dorsal caruncles perforated at tip, at a short distance in 

 front of dorsal rays ; the median caruncle largest, at about i 

 head length in front of the insertion of dorsal ; lateral caruncle 

 about one-third the median one in size and slightly more 

 advanced. 



Skin covered throughout Avith fine shagreen ; eyes and the 

 groove for the cephalic tentacle are the only naked areas of the 

 body surface. 



Color in formalin jet-black ; inner surface of mouth cleft, 

 gill opening, all the fins and appendages similarly colored. 

 Terminal fringe of cephalic tentacle whitish, but its bulb blackish. 



The species is very closely allied to Ceratias couesi (Gill), 

 but differs from this in having a second dorsal spine (fleshy 

 dorsal tentacle), in the gill opening being nearer tip of snout than 

 caudal base, and in the shorter cephalic tentacle. 



The species also differs from Ceratias holboelli Kköyee in 

 having toothed vomer, in the shorter cephalic tentacle and in 

 having 3 caruncles instead of 2, and in the relative position of 

 these members. 



