The Voyage of H.M.S“Challenger.” Aster 
1 ; 3. 
a 
F.H.Michael del. F Huth, Lite Edin® 
TS peo Vil NVACSsbsk: sale ATUIS -aesp. 4-6. HYMENASTER GEOMETRICUS, n sp 
7-9. HYMENASTER LATEBROSUS, n.sp 10-12. HYMENASTER MEMBRANACEUS, Wyville Thomson. 
