A new Oestophora (Gastropoda, Eupulmonata, Trissexodontidae) from Ilha da Berlenga, Portugal

A new Oestophora species (Gastropoda, Trissexodontidae) is described on the basis of an accidental find of 19 empty shells from Berlenga Grande, Portugal. In shell morphology the new species resembles Oestophora barbula. It can be separated by the lack of apertural teeth, a wider umbilicus and the presence of a blunt keel. The name Oestophora barrelsi refers to an old Dutch name for the archipelago, i.e. the “Barrels”.