Six new species of the hermit crab genus Decaphyllus De Saint Laurent, 1968 (Crustacea: Decapoda: Anomura: Paguridae) from the Bohol Sea, the Philippines and the Ryukyu Islands, Japan

The pagurid genus Decaphyllus de Saint Laurent, 1968 was represented by five species prior to this study. In this work, six new species of the genus are described and illustrated on the basis of material mainly collected by the PANGLAO 2004 Marine Biodiversity Project, carried out in Bohol, the Philippines, supplemented by a small collection from Japan: D. brevis, D. deliquus, D. litoralis, D. proprius, D. spinulodigitus, and D. tenuis. Affinities of these new species are discussed. Interspecific variation in the development of the arthrobranch gills on the third maxilliped is seen. The genus Decaphyllus is recorded from the Philippines for the first time. The present work increases the number of species of Decaphyllus to 11. Raffles Bulletin of Zoology, Vol. 61 No. 2 2013. P: 589-620