Description of <i>Periclimenes wirtzi</i> sp. nov., a new pontoniine shrimp from Madeira and the Azores, with a checklist of Eastern Atlantic and Mediterranean Pontoniinae (Crustacea, Decapoda, Caridea)

A new Periclimens from Madeira and the Azores, P. wirtzi sp. nov. is described. This pontoniine shrimp has an extremely long and unusually narrow rostrum with only a few teeth on the distal half of its dorsal border. It was found in large numbers on black corals of the genus Anthipathes at 29-40m depth. A provisional checklist of Eastern Atlantic and Mediterranean Pontoniinae is given