992 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Order Phanerozonia Sladen — Continued. 
Family Archasteridae Viguier. 
Genus Arehaster Muller and Troschel. 
Archaster typicus Muller and Troschel.* 
Family Goniasteridae Forbes. 
Subfamily Mediasterinas Verrill. 
Genus Mediaster Stimpson. 
Mediaster ornatus, n. sp. 
Genus Nereidaster Yerrill. 
Nereidaster bowersi, n. sp. 
Subfamily Goniasterinae Verrill. 
Genus Pentagonaster Gray. 
Pentagonaster ammophilus, n. sp. 
Genus Tosia Gray. 
Subgenus Plinthaster Yerrill. 
Tosia (Plinthaster) ceramoidea, n. sp. 
Subgenus Ceramaster Verrill. 
Tosia (Ceramaster) micropelta, n. sp. 
Genus Astroceramus n. 
Astroceramus callimorphus, n. sp. 
Genus Calliderma Gra}\ 
Calliderma spectabilis, n. sp. 
Genus Calliaster Gray. 
Calliaster pedicellaris, n. sp. 
Genus Gilbertaster n. 
Gilbertaster anacanthus, n. sp. 
Subfamily Hippasteriinae Yerrill. 
Genus Evoplosoma n. 
Evoplosoma forcipifera, n. sp. 
Subfamily Leptogonasterime Perrier. 
Genus Antheniaster Verrill. 
Antheniaster epixanthus, n. sp. 
Subfamily Goniodiscidinae, new name. 
Genus Goniodiscides, new name. 
Goniodiscides sebae (Muller and Troschel). 
Family Pentacerotidse Gray. 
Genus Pentaceros Schulze. 
Pentaceros hawaiiensis, n. sp. 
Genus Nidorellia Gray. 
Nidorellia armata (Gray).* 
Genus Asterodiscus Gray. 
Asterodiscus tuberculosus, n. sp. 
Genus Culcita Agassiz. 
Culcita arenosa Perrier.* 
