' Challenger ' Cephalopoda. 195 



1 millira. from the anterior margin and extends to within 



2 raillim. of its fellow behind. The mantle-margin is pro- 

 minent dorsally and slightly emarginate ventrallj. The 

 siphon does not quite extend to the bases of the arms. 



The Head is broad, and the eyes rounded and prominent. 



The Arms are subequal, the order of length being 4, 3, 2, 

 1 ; thej are verj short, about one third the length of the body ; 

 the first and second are conical, the third flatter, with a slight 

 ridge externally, and the fourth broad and flat with a distinct 

 crest. The suckers are in four series throughout, small, sphe- 

 roidal, and not very oblique ; the horny ring is smooth. The 

 hectocotylus is not developed. The wnbrella is evanescent, 

 extending at most only up to the second row of suckers : the 

 buccal memhrane has five points and is rounded dorsally ; 

 the spermatic cushion is but slightly developed. The outer 

 lip is thin and grooved longitudinally, the inner thicker and 

 papillate. 



The Tentacle is as long as the head and body; the stem 

 being slender and indistinctly three-sided. The club is very 

 slightly expanded ; a protective membrane, grooved obliquely 

 on the dorsal aspect, is situated on the outer margin, and 

 there is a web on the internal side. The suckers are in four 

 or five series, which are slightly larger towards the inner 

 margin ; the horny ring presents a few acute teeth. 



The Surface is smooth throughout. 



The Colour is a dull reddish grey above, yellowish below. 



The Shell is a very elongate oval in outline ; the chitinous 

 margin is very narrow and extends only, slightly over the 

 dorsal surface, which is finely granular and marked by the 

 divisions between the loculi : the ventral surface is somewhat 

 elevated and marked by a distinct but not very deep median 

 groove ; the last loculus extends over more than one third of 

 the shell and is bounded posteriorly by an almost semicircular 

 line ; the strice are very close ; the limbs of the inner cotie 

 arise about midway along the shell, pass backwards as low, 

 narrow, smooth fillets, and unite behind without forming any 

 deep cavity ; the posterior extremity is curved towards the 

 ventral aspect and ends in a narrow blunt cone, to the apex 

 of which is attached the straight dorsally directed spine. 



Hab. Off the Ki Islands, south of New Guinea (Station 

 192), 140 fathoms. One specimen, ? . 



Sepia kobiensis, n. sp. 



The Body is long and narrow, widest near the anterior 

 margin, and tapers gradually backwards. The fn is very 

 narrow, only one eighth of the body ; it commences 3 millim. 



