ACTINOPODOUS HOLOTHUKIOIDEA. 



213 



48. Perianmia J^umai,^ 9,-p. n. 

 (PI. VI, figs. 5G— 58 ; textfig. 39). 

 Specimens examined : — 



The specimens of the first set were already much macerated 

 when brought up by tlie ]ong-hne and brought into the labora- 

 tory. Accordingly Kuma was sent out three days after specially 

 to get this species. I can not but admire the skill of the collector 

 who succeeded in getting over ten specimens on the same spot. 

 They were in a tolerably good condition, enabling me to make a 

 sketch in the fresh condition and make examinations other- 

 wise. They were most dehcate creatures, and in spite of the 

 gi-eat care taken to preserve them (in a mixture of sea-water, 

 alcohol and glycerine), they were much macerated, especially during 

 their transportation to Tokyo. 



The general configuration of the specimens puts them at once 

 in the family Elpidiida3. There is a sharp demarcation between 

 the dorsal and the ventral surfaces. The former is vaulted, the 

 latter is flat. There is no appendage in the posterior part, but 

 at tlie anterior end there is a large four-lobed transverse 

 appendage formed by the union of four papillœ into a common 



* Named for the collector Kdma Aoki. 



