The Voyage of HM.S" Challenger” 
iss) 
F.H. Michael del 
1-3. HYMENASTER PERGAMENTACEUS, n-sp. 
7-9.HYMENASTER ECHINULATUS, nsp. 
Asteroidea. Pl.LXXXIII 
F. Huth, Lith® Edin* 
4-6.HYMENASTER FORMOSUS, n- sp. 
10-12. HYMENASTER POROSISSIMUS, n-sp. 
