Project 2294: S. Fujimoto, H. Yamasaki. 2017. A new genus and species of Renaudarctidae (Heterotardigrada: Arthrotardigrada) from Ryukyu Archipelago, Japan. Marine Biology Research. 13 (3):288-299.
Specimen: Nodarctus hallucis (KUZ/KUZ:Z1661)
View: dorsal-ventral

Abstract

A new armoured marine tardigrade, Nodarctus hallucis gen. et sp. nov., is described from specimens collected from sandy beaches of Haterumajima, Ishigakijima and Okinawajima Islands, Ryukyu Archipelago, Japan. It is a member of the rare family Renaudarctidae, which is characterized by a stocky body with dorsal and ventral plates and stumpy legs with digits, claws and accessory filaments. However, the collected animals have prominent characters that differ from the two known species of the family: subdivided dorsal segmental plates I–III lacking lateral processes, an acute caudal spike, indented sensory plates, short spikes and peculiar papillae on legs I–III, basal spikes of legs IV and only two digits on legs IV. These differences justify the erection of a new genus and species for the animal. Morphological affinities with other marine taxa, the function of the leg papillae and the distribution pattern of the new species are discussed. (from Fujimoto & Yamasaki 2017. A new genus and species of Renaudarctidae (Heterotardigrada: Arthrotardigrada) from Ryukyu Archipelago, Japan). MARINE BIOLOGY RESEARCH 13(3), 288–299)


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Article DOI: 10.1080/17451000.2016.1257809

Project DOI: 10.7934/P2294, http://dx.doi.org/10.7934/P2294
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  • 2 Taxa
  • 2 Specimens
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    Authors' Institutions

    • Museum für Naturkunde - Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin

    • Kyoto University

    • Tohoku University

    • University of the Ryukyus



    Members

    member name taxa specimens media media
    notes
    Shinta Fujimoto
    Project Administrator
    2222
    Hiroshi Yamasaki
    Full membership
    0000


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