This is the 1st record of the genus and species of the xanthid crab, Quadrella maculosa Alcock, 1898, to be reported for the carcinological fauna of Taiwan. This species was symbiotically associated with the black coral Antipathes sp. (Order Antipatharia), and was collected from the sea bottom at a depth of 53 m depth offshore from Nanwan, Pingtung County in southern Taiwan. It is distinguished from other congeneric species by the armature of the carpus and the merus of the chelipeds, and the dactyls of the pereiopods.

Key words: New record, Crustacean, Taxonomy, Symbiosis, Antipatharian Coral.

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