268 " ENDEAVOUR " SCIENTIFIC RESULTS. 



ground for rejecting the radula of Sepia from taxonomie 

 consideration, as has been emphasised by the results of recent 

 investigation of other molhiscan groups, notably the long- 

 stubborn chitons. 



All the specimens of »S'. dannevigi appear to be females, but 

 none are gravid, and in both the two specimens partly 

 dissected the ovary is small. There is a small duplex sper- 

 matic pad under the mouth. 



The specific name is chosen in honor of the late Mr. Harald 

 Christian Dannevig, Director of Fisheries, lost while on duty 

 with the F.I.S. " Endeavour." 



Sepia chirotrema, sp. nov. 



(Plate Ixxiv., figs. 3-9 ; Plates Ixxv-lxxvii.) 



Animal large, the Body of moderate width and depth in the 

 ? (PI. Ixxvii), relatively much broader and flatter in the c? 

 (Pis. Ixxv.-lxxvi), the point of maximvam width in both sexes 

 a little in front of the middle, thence tapering somewhat 

 anteriorly, and much more rapidly posteriorly to the pointed 

 extremity ; mantle margin with a large triangular rostrum 

 dorsally, below the funnel broadly and smoothly ema ginate 

 without distinct lateral angles. Fins long, quite wide for a 

 Sepia (^ to \ the width of the body) ; their origin 3-5 mm. 

 back of the mantle margin, thence sweeping back in a broad 

 curve to swerve a little upward and te minate so that they 

 nearly meet above and a few mm. (5 in the cT, 15 in the $ 

 paratype) in advance of the extremity of the body.* 



Head slightly narrower than the body in the 9 , much 

 narrower in the cf . Eyes large. Funnel very large, reaching 

 just past the base of the ventral arms. 



Arms relatively short, the ventral pair about two-fifths 

 the dorsal mantle length and much larger and longer than 

 the other pairs, the latter regularly diminishing in size to 

 the dorsal pair, their formula constantly 4, 3, 2, 1 ; dorsal 

 arms relatively small, attaining only about half the length 

 and diameter of the powerful ventral pair ; keels present on 

 all arms, but much the most conspicuous on the ventrals. 

 Suckers quadriserial, those of the two inner rows slightly 

 larger than the outer, those of the four ventral arms con- 



* In the (J referred to the posterior lobes of the fins overreach the bodj' ; 

 in the J they fall short of it. 



