On a new species of Euryozius Miers, 1886 (Crustacea: Decapoda: Brachyura: Pseudoziidae) from the Philippines, with notes on the taxonomy of the genus

摘要

A new species of the rarely reported genus Euryozius Miers, 1886, is described from the Philippines and is distinguished from its congeners by carapace and ambulatory leg proportions, anterolateral margin armature, and form of the frontal margin. This new species, Euryozius camachoi, is only the third species of the genus reported from the Indo-Pacific, and the only one for which males are known. Two other Indo-Pacific congeners, E. canorus (Rath-bun, 1911) and E. danielae Davie, 1992, are known only from type female specimens. The systematic position of Euryozius is discussed, and the genus is transferred to the Pseudoziidae Alcock, 1898. The Pseudoziidae is here recognized as a distinct family, separate from the Goneplacidae where it had been regarded as a subfamily.