The Miocene to Recent bivalve Palliolum tigerinum (Müller, 1776) and the Pliocene P. gerardi (Nyst, 1835) have utterly different colour patterns. Morphological differences between these taxa are described and summarised in a table to facilitate easy identification.

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Nederlandse Malacologische Vereniging

A.W. Janssen, & H.H. Dijkstra. (1996). Morphological differences between two species of Palliolum (Bivalvia: Pectinidae). Basteria, 59(4/6), 107–113.