ACTINOrODOUS HOLOTHUEIOIDEA. 



213 



48. PeyiatHvia huniai,* sp. n. 

 (PI. YI., figs. 5C— 58 ; textfig. 39). 

 Specimens examined : — 



The speeiinen.s of the lirst set were ah'eady much macerated 

 wlicn brought up by tlio long-line 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 delicate creatures, and in spite of the 

 great 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 tliem at once 

 in the family Elpidiida). Tliere is a sharp demarcation between 

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

 latter is ilat. There is no appendage in the posterior jiart, but 

 at the anterior end there is a large four-lobed trausvi-rse 

 appendage formed by the union of four papilhe into a conuuon 



* Named for the collector Kuma .\oki. 



