Bizarre Lucinid Bivalves from Southwestern Japan, including a New Species, and Relatives in Adjacent Waters

Abstract

A new species of the family Lucinidae, Elliptiolucina ingens, is described from off Amami-Oshima Island. An odd valve of Elliptiolucina magnifica Cosel & Bouchet, 2008 from the Sulu Sea and another of a closely related species from the Manus Basin were examined for comparison. Two other lucinid species were found with the new one: Dulcina musorstomi and Rostrilucina anterostrata, both of which were recently described from the Philippines and are new to the Japanese fauna.