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

  • Masanori Okanishi (a1) and Toshihiko Fujita (a2)


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.


Corresponding author

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:


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

  • Masanori Okanishi (a1) and Toshihiko Fujita (a2)


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