Oral field. 
interme diate _ 
dorsal p. 
post-oral p; 
prae-\\__ 
antero,~ 
dorsalp) al 
cs 
postero- 
dorsal p. 
postero a 
dorsal p. 
postero-later 
iS 
_» feelers 
Boze 
oS =s=-*=- === -z,oral valves 
a 
Antarctic (Discovery) Fixp. Young Holothurioids,pl.1. Aut.del. Huth, hth etimp 
{ Key.) 
