Pagurus imafukui, a New Species of Deep-water Hermit Crab (Crustacea : Anomura : Paguridae), with Notes on its Larvas

摘要

A new species of the hermit crab genus Pagurus was collected from depths of 126 and 300 meters off the Pacific coast of Japan. This is a strongly polymorphic species, which has been found only in shells of scaphopods (Order Dentalioida). Pagurus imafukui new species is described, illustrated and its morphological variations discussed. Aspects of early larval morphology of this species are also given.