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Overlooked biodiversity from museum collections: four new species and one new genus of Ophiuroidea (Echinodermata) from Antarctica and adjacent regions with notes on multi-armed ophiuroids

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Abstract

Four newly described species, Astrochlamys timoharai sp. nov. (Gorgonocephalidae Ljungman, 1867), Ophiosteira lissopatella sp. nov. (Ophiopyrgidae Perrier, 1893), Ophiophyllum umbonatum sp. nov. (Ophiopyrgidae), and Soliophis bakeri sp. nov. (Ophioscolecidae Lütken, 1869) with a description of Soliophis gen. nov., are reported from the Ross Sea and adjacent regions. New occurrence of Euvondrea floretta Fell, 1961a is also reported. These newly described taxa display unusual morphology with two species showing 10 or more arms. Although no evidence of brooding was present, two of the described species belong to genera with other Antarctic species that show brooding behavior. Collections from these areas remain important for new discoveries relevant to Antarctic biodiversity.

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Acknowledgments

We wish to express our sincere gratitude to Dr. Tim O’Hara (Museum Victoria) and an anonymous reviewer for their critical reading of the manuscript and constructive comments. We are most grateful to Amanda Robinson, USNM for her assistance with specimen loans.

Funding

The authors received no specific funding for this work.

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Authors and Affiliations

  1. Misaki Marine Biological Station, Graduate School of Science, The University of Tokyo, 1024 Koajiro, Misaki, Miura, Kanagawa, 238-0225, Japan

    Masanori Okanishi

  2. Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, 20013-7012, USA

    Christopher L. Mah

Authors
  1. Masanori Okanishi
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  2. Christopher L. Mah
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Correspondence to Masanori Okanishi.

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The authors declare that they have no conflict of interest.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.

Sampling and field studies

The study material predates CBD and Nagoya protocols and is compliant with necessary sampling authorities.

Data availability

The data that support the findings of this study are available from the National Museum of Natural History, Smithsonian Institution. Specimens and data are available from the museum with details available from the authors.

Author contribution

MO provided taxonomic descriptions and analyzed morphology. CM provided curation for specimens and interpretation for selected data. MO and CM wrote and approved the manuscript.

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Communicated by S. Stöhr

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Okanishi, M., Mah, C.L. Overlooked biodiversity from museum collections: four new species and one new genus of Ophiuroidea (Echinodermata) from Antarctica and adjacent regions with notes on multi-armed ophiuroids. Mar. Biodivers. 50, 64 (2020). https://doi.org/10.1007/s12526-020-01080-w

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