Xll 



THE VOYAGE OF H.M.S. CHALLENGER. 



Retaster gibber, Sladen 



insignis, Sladen . 



Genus Marsipaster, Sladen 



Marsipaster spinosissimus, Sladen 



hirsutus, Sladen . 



Genus Calyptraster, Sladen 



Calyptraster coa, Sladen 

 Genus Hymenaster, Wyville Thomson 



Hymenaster nobilis, Wyville Thomson 



■ formosus, Sladen . 



pergamentaceus, Sladen . 



sacculatus, Sladen 



echinulatus, Sladen 



carnosus, Sladen . 



glaucus, Sladen . 



vicarius, Sladen . 



pellucidus, Wyville Thomson 



■ infernalis, Sladen 



ceelahis, Sladen . 



crucifer, Sladen . 



anomalus, Sladen 



latebrosus, Sladen ^ 



porosissinius, Sladen 



graniferus, Sladen 



geometricus, Sladen 



pullatus, Sladen . 



membranaceus, Wyville Thomson 



■ — — ■ coecincdus, Sladen 



prsecoquis, Sladen . 



Genus Bentliaster, Sladen 



Bentliaster icyville-thomsoni, Sladen 



penicillatus, Sladen 



Subfamily PYTHOXASTERiNiE 

 Genus Pythoaaster, Sladen 



Pythonaster murrayi, n. sp. 

 Family EchinasteriDsE . 

 Subfamily Acanthasterin^e 

 Genus Acanthaster, Gervais . 



Acanthaster eehinites (Ellis and Solander), Liitken 

 Subfamily Mithrodiixj: 

 Genus Mifhrodia, Gray 



Mithrodia clavigera (Lamarck), Perrier 

 Subfamily Echinasterin^e 



Genus Cribrella (Agassiz), Forbes 



Cribrella oculata (Linck), Forbes 



ornata, Perrier 



compada, n. sp. . 



obesa, n. sp. 



prxstans, n. sp. . 



