Hermit crabs of the genera Calcinus Dana, Clibanarius Dana, and Dardanus Paul'son from the PANGLAO 2004 Expedition, with description of a new species and a checklist of the hermit crabs of the Philippines (Crustacea: Anomura: Paguroidea).

The PANGLAO 2004 expedition in the central Visayas region of the Philippines revealed the occurrence of 43 species of diogenid hermit crabs of the genera Calcinus, Clibanarius, and Dardanus in the Philippines. Using morphological, colour pattern, and mitochondrial DNA evidence, the Dardanus lagopodes (Forskål, 1775) complex is revised with the validation of D. sanguinolentus (Quoy & Gaimard, 1824) and the addition of one new species, Dardanus balhibuon. Eight species represent new records for the Philippine Archipelago. For each reported species, a list of the total number of specimens collected during the expedition is presented, and the geographic range and habitat are discussed. Colour photographs are provided for most species. A checklist of all hermit crab species recorded from the Philippines is presented, and species of these three genera previously reported from the Philippines but not found during the PANGLAO 2004 expedition are discussed. [ABSTRACT FROM AUTHOR]