The terrestrial Mollusca of Easter Island (Gastropoda, Pulmonata)

The terrestrial Mollusca of Easter Island are surveyed, based on published records, museum material, and recent collections in 1999. Six species are known with certainty from Easter Island, five of which have nearly worldwide distributions. All are known or suspected to be human introductions. Allopeas gracile (Hutton) is reported for the first time from Easter Island and the previous record of Deroceras laeve (Müller) is suggested to be misidentified D. reticulatum (Müller).