Description of a new species of Petrolisthes in the Indo-West Pacific with a redefinition of P.hastatus Stimpson 1858 and resurrection of P.inermis (Heller 1862) (Crustacea Anomura Porcellanidae)

摘要

The porcellanid crab Petrolisthes hastatus Stimpson, 1858, has been traditionally viewed as a highly variable species with a wide distribution in the West Pacific. For more than a century there has been taxonomic confusion of this species with morphologically similar taxa, some of which were synonymized with Stimpson’s taxon. We redefine Petrolisthes hastatus, resurrect Petrolisthes inermis as a valid species, discuss the status of Petrolisthes tenkatei De Man, 1893, and describe a new species as Petrolisthes elegantissimus from Indonesia.