186 



K. MITSUKURI : STUDIES ON 



Eemarks : — This species is very near L. loyvllle-tJiomsoni Theel. 

 In fact, the specimen from Japan placed by Theel in that species, 

 I surmise, belongs to the present species. Theel himself remarks : 

 *' The individual from Station 232 was in such an incomplete 

 state that no close examination is possible ; it is only 25 mm. 

 long and has thirteen developed tentacles and rudiments of a 

 fourteenth ; it is most probable that this form is a distinct species 

 from L. wyville-thomsoni, and this seems still more likely on 

 considering the nature of the sea -bottom and the comparatively 

 inconsiderable depth where the animal was found living" (1882, 

 pp. 77 — 8). The chief reasons for separating the present species 

 from L. icyi'iUe-thom-^om are : (1) its small size and general con- 

 figuration, (2) the large number of lateral pedicels in comparison 

 with the size of the animal, (3) the absolute smallness of the 

 pedicels, (4) the number of spokes in large and small wheels, 

 and (5) the geographical distribution, all the specimens of L. 

 iDymlle-tliomsonl being from the Antarctic Ocean, with the excep- 

 tion of the doubtful specimen above referred to from Japan, which 

 counts for something in separating the species. 



One of the animals shows protruded through a ruptured 

 place in the dorsal perisome, a well -developed sexual organ, so 

 that the animal must be mature. 



43. Lfetniogone i^ai't^rt, sp. n, 



(PI. v., figs. 46— i7 ; textfig. 34). 

 Specimens examined : — 



