Periclimenes attenuatus sp. nov. (Crustacea, Decapoda, Natantia, Pontoniinae), a New Commensal Shrimp from the Duke of York Islands

Abstract

Periclimenes attenuatus, a new species of pontoniid found in association with an unidentified crinoid from the Duke of York Islands, New Ireland, Bismarck Archipelago, is described and its morphology illustrated. The distinctive features of the shrimp and its relationship to other species of the genus is discussed. The information available concerning pontoniid-crinoid associations is reviewed and tabulated.