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A taxonomic review of the genus Astrodia (Echinodermata: Ophiuroidea: Asteronychidae)

Published online by Cambridge University Press:  07 November 2013

Masanori Okanishi*
Seto Marine Biological Laboratory, Field Science Education and Research Center, Kyoto University, 459 Shirahama, Nishimuro Wakayama 649-2211, Japan
Toshihiko Fujita
Department of Zoology, National Museum of Nature and Science, Amakubo, 4-1-1, Tsukuba, Ibaraki 305-0005, Japan
Correspondence should be addressed to: M. Okanishi, Seto Marine Biological Laboratory, Field Science Education and Research Center, Kyoto University, 459 Shirahama, Nishimuro Wakayama 649-2211, Japan email:


The genus Astrodia (Echinodermata: Ophiuroidea: Asteronychidae) was revised based on 34 specimens including two syntypes of Asteronyx excavata, two syntypes of Asteronyx plana and two syntypes of Ophiocreas abyssicola. We proposed a transfer of Ophiocreas abyssicola (Euryalidae) to the genus Astrodia. Consequently, Astrodia now includes four species, Astrodia abyssicola, A. excavata, A. plana and A. tenuispina. These four species are all redescribed. A taxonomic key to the species of the genus Astrodia is also provided.

Research Article
Copyright © Marine Biological Association of the United Kingdom 2013 

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