ACTINOPODOrS HOLOTHURIOIDEA. 191 



on the fact that tlio pedicels in preserved specimens are in more 

 than one row in some parts of the body length, this might be 

 put in the genus [h/ocJa'inrm, but as the dorsal jiapilla? are so 

 distinctly in one row, I have placed it in Lcelmogone. I agree 

 with previous wi'iters, like Slttitee, in thinking that the distinc- 

 tion can not be maintained between Ihjodccmon and Lcrhnorjone ; 

 and this species offers a strong argument in sup[)ort of that 

 view. 



The species nearest to the present one is Ibjodavv .n fimhridliifi 

 Sluitee, biit there are some important points of diffc'rence which ob- 

 lige us to separate the two species : (1) The size is very different ; 

 in I. fimhrialm, the smallest specimen measured 8 X 2.5 cm., while 

 in the present species the largest examined is 4.7x0.8 cm. The 

 small size, as I have stated above, is not due to the immaturity 

 of the specimens. Hence we must believe that there is a con- 

 siderable difference in the size of the two species. (2) In /. 

 fimhrlatus, the dorsum is said to be hardly more vaulted than 

 the ventrum. In the new species, the dorsum is decidedly 

 vaulted, while tiie ventrum is flat. (3) In /. jlmhrlaiiif!, the 

 papillae are said to be smaller than the pedicels, as in so many 

 other species of Lcelmorjons and llyodamon. In L. i^ehnhai, the 

 papilla) are broader than the pedicels. (4) In /. fimhrialus, each 

 of the two dorsal radii has a double row of papilla?. In L. 

 selenLai, there is only one row of papilla^ on each ambulacrum, a 

 fact which induced me to place it in the genus La'tmorjone. (.")) 

 In I. fimhrialus, dorsum and ventrum arc " hell-violett " while 

 pedicels and papilla? are somewhat darker rose-violet ; the end- 

 disks of l)otli pedicels and tentacles, are said to bo dark violent. 

 In L. s.'Icnkai, the perisome is transparent and colorless ; the 

 end-disks of the pedicels are likewise colorless, but those of the 



