18G 



K. MITSUKURI : STUDIES ON 



Remarlis :— This species is very near L. zoyvUle-thomsoiii Theel, 

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

 1 surmise, belongs to the present species. Thkel 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 lias thirteen developed tentacles and rudiments of a 

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

 from L. K-yville-ihomsoni, and tliis seems still more likely on 

 considering the nature of tlie sea-bottom and the comparatively 

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

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

 from L. ioi/ville-tlionKoni are : (1) its small size and general con- 

 figuration, (2) the large number of lateral pedicels in compai'ison 

 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. 

 wyrille-thomsoiu 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 raptured 

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

 that the animal must be mature. 



43. La'tniogone parva, sp. n. 



(PI. v., figs. 46—47 ; textfig. 34). 

 Specimens examined : — 



