224 " ENDEAVOUR " SCIENTIFIC RESULTS. 



Ihe number of such teeth in the larger suckers being 

 estimated as 50-60. Fixing apparatus (PI. Ixii., fig. 2) be- 

 ginning distally on the dorsal margin of the club at its point of 

 widest expansion, thence extending down the club and stalk 

 for about one-fifth of the length of the tentacle ; again 

 commencing dist?lly, said apparatus comprises — first a 

 minute sucker, then in turn a pad, a larger sucker, a pad, a 

 considerably larger sucker (this being at the base of the 

 sucker-bearing portion of the chib proper), four pads alter- 

 nating with three suckers equal to one another in size, but 

 smaller than either of the two prececUng ; alongside the last 

 pad, though in a slightly distal horizontal plane and barely 

 ventral to the median groove of the stalk is an exceedingly 

 minute sucker ; a short distance below it and also almost 

 in the groove a minute pad, followed in the same series next 

 the groove by two larger but still quite small suckers, then 

 two pads somewhat obliquely placed so that the two larger 

 succeeding suckers are well spaced from the groove, then 

 two pads leacUng back toward the groove, close by which 

 we find the next two suckers and the concluding pad, the 

 interspaces between these last being much greater than 

 those preceding them ; summing up, entire apparatus divis- 

 ible into (1) a dorso-marginal and distal series of six variously 

 sized suckers alternating regularly and closely with six equal- 

 sized pads, and (2) a ventro-median and more proximal scries 

 of seven relatively small suckers and six pads alternating 

 in the peculiar order of l-(l)-2-(2)-2-(2)-2-(l), the median 

 members of the series somewhat displaced ventrally instead of 

 all being in exactly the same longitudinal plane. 



Buccal membrane 

 (PI. Ixii., fig. 4) very 

 large, rugose within, 

 7-pointed, the lappets 

 anchored by simple, 

 unforked, membranous 

 buttresses ; the three 

 dorsal lappets inserted 

 opposite the inter- 

 spaces of the four 

 Fig. S.—Callitevthi^ miranda $ [545], dorsal arms, apparent- 

 camera dra Winer of mandible.s. ^ i i i- ii 

 ^ ly anchored directly 



to the face of the inner umbrella, Avhereas the buttresses 

 of the next pair of lappets are continuous with the 

 ventral membranes of the bhird arms, and those of the ventral 

 pair of lappets with the dorsal (outer) membranes of the 

 ventral arms. 



