The Voyage of H M.S “Challenger” Asteroidea. Pl. LXXXII 
aE 
Th. 
fa.. 
EERE Gee) 
: 2 
: 
N\ Np ee ty 
yp Vicar 
F.H. Michael del. F. Huth, Lith? Edin™ 
1-2. HYMENASTER ECHINULATUS, n sp. 3-4. HYMENASTER POROSISSIMUS, n sp. 
