Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2017-02-06
Page range: 543–553
Abstract views: 138
PDF downloaded: 1

A taxonomic review of the genus Astrohelix Döderlein, 1930 including the 
synonymy of the subgenus Asteroporpa (Astromoana) Baker, 1980 to Astrohelix

Faculty of Science, Biological Sciences Course, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki, 310-8512 Japan
Echinodermata taxonomy holotype Asteroporpa (Astrohelix) bellator Asteroporpa (Astrohelix) paucidens new synonymy

Abstract

The holotypes of Astrohelix bellator bellator and Astrohelix bellator paucidens (Echinodermata: Ophiuroidea: Euryalida: Gorgonocephalidae) are redescribed. Based on these observations Asteroporpa (Astromoana) with Astrohelix is proposed. With the elevation of two subspecies of Asteroporpa (Astrohelix) bellator bellator and A. (Astrohelix) bellator paucidens to species level, A. (Astrohelix) comprises six species, A. (Astrohelix) bellator, A. (Astrohelix) indicus, A. (Astrohelix) koyoae, A. (Astrohelix) muricatopatella, A. (Astrohelix) paucidens and A. (Astrohelix) reticulata. These species can be distinguished by the shape of the ossicles on the aboral disc, on the oral plates, and length of terminal projection of cone-shaped epidermal ossicles around the lateral interradial disc. A taxonomic key to all six species of the subgenus A. (Astrohelix) is provided.

 

References

  1. Baker, A.N. (1980) Euryalinid Ophiuroidea (Echinodermata) from Australia, New Zealand, and the south-west Pacific Ocean. New Zealand Journal of Zoology, 7, 11–83.
    https://doi.org/10.1080/03014223.1980.10423763

    Clark, A.H. (1952) Schizostella, a new genus of brittle-star (Gorgonocephalidae). Proceedings of the United States National Museum, 102, 451–454.
    https://doi.org/10.5479/si.00963801.102-3307.451

    Döderlein, L. (1930) Die Ophiuroiden der deutschen Tiefsee-Expedition. 2. Euryalae. Deutsche Tiefsee-Expedition 1898–1899, 22, 347–396.

    Fell, H.B. (1960) Synoptic keys to the genera of Ophiuroidea. Zoology Publications from Victoria University of Wellington, 26, 1–44.

    Koehler, R. (1904) Ophiures de l’Expédition du Siboga. Part I. Ophiures de Mer profonde. Siboga-Expeditie, 45a, 1–176.

    Lütken, C.F. (1856) Bidrag til Kundskab om Slangestjernerne. II. Oversigt over de vestindiske Ophiurer. Vedenskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjøbenhavn, 7, 1–19.

    Lyman, T. (1872) Note sur les Ophiurides et Euryales qui se trouvent dans les collections du Muséum d’Histoire Naturelle de Paris. Annales des Sciences Naturelles cinquième série Zoologie et Paléontologie, series, 5, 1–8.

    McKnight, D.G. (2000) The Marine Fauna of New Zealand: Basket-stars and snake-stars (Echinodermata: Ophiuroidea: Euryalinida). National Institute of Water and Atmospheric Research Biodiversity Memoir, 115, 1–79.

    Mortensen, T. (1933) Studies of Indo-Pacific euryalids. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjøbenhavn, 96, 1–75.

    Okanishi, M. & Fujita, T. (2011) Two new species of the subgenus Asteroporpa (Asteromoana) (Ophiuroidea: Euryalida: Gorgonocephalidae) from Japan. Zootaxa, 2751, 25–39.

    Okanishi, M. & Fujita, T. (2011) Two new species of the subgenus Asteroporpa (Astromoana) (Ophiuroidea: Euryalida: Gorgonocephalidae) from Japan. Zootaxa, 2890, 68.

    Okanishi, M. & Fujita, T. (2013) Molecular phylogeny based on increased number of species and genes revealed more robust family-level systematics of the order Euryalida (Echinodermata: Ophiuroidea). Molecular Phylogenetics and Evolution, 69, 566–580.
    https://doi.org/10.1016/j.ympev.2013.07.021

    Okanishi, M. & Fujita, T. (2014) A taxonomic review of the genus Asterostegus (Echinodermata: Ophiuroidea), with the description of a new species. European Journal of Taxonomy, 76, 1–18.
    https://doi.org/10.5852/ejt.2014.76

    Stöhr, S., O'Hara T.D. & Thuy, B. (2012) Global Diversity of Brittle Stars (Echinodermata: Ophiuroidea). PLoS ONE 7 (3), e31940.
    https://doi.org/10.1371/journal.pone.0031940