MONOGRAPH OF JAPANESE OPHIUROIDEA. 363 



Amphioph Iura lapidaria. 

 Homalophiura clasta. 

 Oph'mra o'ôplax. 

 Ophiura micracantha. 

 Ophiura paucisquama. 

 Ophiura monostœcha. 

 Ophiura albata. 

 Ophiura calyptolepis. 

 Ophiomusium granosum. 

 Ophiomiisium irychnum. 

 Ophiosonella elevata. 

 Oph iozoneUa platydisca. 

 Ophiozonella polyplax. 

 Oph io^o7iella longisplna. 

 Ophioplocus japonicus. 

 Ophioleuce charischema. 

 Ophioleuce hremspinum. 

 Ophiotroehus longispinus. 

 Ophiiiroconis monolepis. 

 Bathypectiniira gotoi. 

 Pectinura aiichisfa. 

 OpkiarachneUa megalaspis. 

 Ophioplax lamellosa. 

 Ophiodoris per/cafe. 

 Ophionereis sinensis. 

 Ophiocrasis dictydisca. 

 Ophiocrasis marldanneri. 

 140 species: 60^. 

 The three groups of Cirumpolar, Bering- American and Bering 

 species are evidently referable to the Arctic fauna, and form all 



