Mactra pecchiolii Lawley, 1869 (Bivalvia Mactridae), a “forgotten pliocenic” taxon

摘要

A fossil bivalve belonging to the Pliocene has been recorded in southern Tuscany. Following bibliographic researches, it has been classified as a previously studied taxon that has never been cited afterwards: Mactra pecchiolii Lawley, 1869 (Bivalvia Mactridae). A lagoon envir- onment of salt water has been speculated for this species.