A new genus and new species of deep-water trapeziid crab (Crustacea: Decapoda: Brachyura: Trapezioidea) from the Ryukyu Islands, Japan

descriptionPublicationkeyboard_double_arrow_right Article 02 Aug 2010Publisher:Magnolia PressJournal:Zootaxa, volume 2,555 (issn: 1175-5326, eissn: 1175-5334,

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Authors: Komai, Tomoyuki; Higashiji, Takuo; Castro, Peter;

doi: 10.11646/zootaxa.2555.1.4 , 10.5281/zenodo.196907

A new genus and new species of deep-water trapeziid crab (Crustacea: Decapoda: Brachyura: Trapezioidea) from the Ryukyu Islands, Japan

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Abstract

A new genus and new species of trapeziid crab, Hexagonaloides bathyalis, is described from Okinawa, Ryukyu Islands (Okinawa Prefecture), Japan, on the basis of two male specimens collected at a depth of 247 m. The new genus is unique among the Trapeziidae in having a combination of the hexagonal carapace bearing a single lateral spine and a smooth frontal margin and the unarmed anterior margin of the cheliped meri. The symbiotic association of the new taxon remains unknown.

Related Organizations

Okinawa Churaumi Aquarium
Japan
American Museum of Natural History
United States
Natural History Museum and Institute
Japan
California State Polytechnic University
United States

Keywords

Arthropoda, Decapoda, Animalia, Trapeziidae, Biodiversity, Malacostraca, Taxonomy

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