222 



ENDEAVOUR SCIENTIFIC RESULTS. 



back of each eye a simple cylindro-conic " olfactory papilla."" 

 Fnnnel short and broacl, extending about 30% of the distance 

 from its base to the umbrella margin ; supported above by 

 a pair of wide, thin, membranous bridles, enclosing a deep 

 pocket between them ; vah^e of the ixsual flap-like form. 

 Funnel Organ (PI. Ixii., fig. 3) comprising the usual pair of 

 large ovate ventro -lateral pads and a large ^-shaped pad 

 with a pointed tip occupying most of the dorsal wall of the 

 furnel chamber. 



Arms stout, rapidly tapering ; in general subequal, except 

 that the ventral pair seem distinctly, though not greatly, 

 shorter than the others, all being obscurely keeled. Suckers- 

 of the sessile arms (Fig. 5) hood-shaped, in two Avell-separated 



rows on all the arms ; their 

 horny rings armed on the 

 superior margin ^\\i\\ about 

 twelve short, wide, battlement- 

 shaped teeth, here and there 

 sometimes coalesced so that 

 the notches between them are 

 reduced to mere nicks ; 

 diameter of one of the larger 

 suckers, 3 mm. Urnhrella (PI. 

 Ixii., fig. 4) well developed, 

 though short, extenchng about 

 equally between the arms of 

 the three dorsal pairs for 

 perhaps one-quarter of their 

 length ; attached to the inner- 

 angles of the arms in such, 

 a way as to be continuous with their oral faces and quite 

 invisible externally when the arms are closed. There is also 

 a weak rudimentary umbrella between the outer angles of' 

 these arms, so that there is a sort of deep, conical pocket 

 between the base of each arm and that of its next neighbour ;- 

 this outer umbrella better developed between the third and 

 fourth arms, where it forms the outer sheath of the tentacle, 

 the inner umbrella here being absent, though reappearing in 

 a rudimentary way ventralh/ as a triangular meinbrane filling 

 the gap between the buccal membrane, its ventral buttresses,, 

 and the ventral arms. Between the latter the inner mem- 

 brane is but scantily developed and about on a par with the 

 again reduced outer membrane. Ventral oral margins of 

 arms of third pair equipped with well developed swimming 

 membranes, similar, though less developed membranes 

 occurring on the free portions of the remaining arms con- 

 tinuously with the inner web above described. 



Fig. 5. — Callifcuthis miranda 5 

 [545], seventh sucker from base in 

 ventral row of right third arm of 

 tj'pe ; camera outHiie from a 

 mount in balsam. 



