A Distant Record of the Cavernicolous Land Crab, Discoplax gracilipes (Crustacea: Decapoda: Gecarcinidae) from Japan

A single specimen of gecarcinid crab, Discoplax gracilipes Ng and Guinot, 2001, was collected from an anchialine pool in a cave on Hateruma Island, southern Ryukyu Archipelago, southwestern Japan. This species was previously known only from the central Philippines. The present specimen represents th...

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Published inSpecies Diversity Vol. 28; no. 2; pp. 177 - 187
Main Authors Kobayashi, Hirozumi, Naruse, Tohru
Format Journal Article
LanguageEnglish
Published The Japanese Society of Systematic Zoology 10.08.2023
Japanese Society of Systematic Zoology
Subjects
anchialine cave
land crab
new record
Ryukyu Archipelago
stygofauna
troglofauna
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Summary:A single specimen of gecarcinid crab, Discoplax gracilipes Ng and Guinot, 2001, was collected from an anchialine pool in a cave on Hateruma Island, southern Ryukyu Archipelago, southwestern Japan. This species was previously known only from the central Philippines. The present specimen represents the first record of the species from Japan, extending its distributional range to about 1400 km northward. Additionally, the fauna of the cave on Hateruma Island briefly noted. A key to the Japanese species of the family Gecarcinidae is provided.
ISSN:1342-1670
2189-7301
DOI:10.12782/specdiv.28.177