<i>Bacteridium</i><i> izmirensis</i> (Gastropoda: Pyramidellidae), a new species from the Aegean Sea

The genus Bacteridium Thiele, 1929 comprises five species known to inhabit the world ocean. However, examination of several specimens collected from & Idot;zmir Bay (Aegean Sea) revealed the presence of a further species, which is here described as Bacteridium izmirensis sp. nov. In this study, the new species is examined in detail and compared to the other similar species, with comments on the distinctive features of the new species.