Taxonomy of the Terrestrial Crab Geothelphusa tenuimanus (Crustacea: Decapoda: Brachyura: Potamidae) of Okinawa Island, Central Ryukyus, Japan Taxonomy of the Terrestrial Crab Geothelphusa tenuimanus (Crustacea: Decapoda: Brachyura: Potamidae) of Okinawa Island, Central Ryukyus, Japan

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Abstract

The Okinawan terrestrial crab Geothelphusa tenuimanus is redescribed and its intraspecific variation is discussed. The geographically isolated Tamagusuku (=southern) population tends to have a more laterally-directed curvature of the anterolateral margins of the carapace and relatively shorter fourth ambulatory legs. However, these differences are not very significant and the diagnostic male first gonopod shows no differences. Therefore, all the populations on Okinawa Island are here regarded as conspecific. Habitats and morphological adaptations of the species are also discussed.

Journal

  • Species Diversity

    Species Diversity 10(3), 171-184, 2005

    The Japanese Society of Systematic Zoology

Cited by:  3

Codes

  • NII Article ID (NAID)
    110006794386
  • NII NACSIS-CAT ID (NCID)
    AA11114903
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13421670
  • NDL Article ID
    7425271
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z53-W570
  • Data Source
    CJPref  NDL  NII-ELS  J-STAGE 
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