Assiminea grayana Fleming, 1828, in het Deltagebied

Assiminea grayana used to be rather abundant in ‘het Deltagebied’ (province of Zeeland: the Netherlands). Recently the older locations (Fig 1) were re-checqued. The recent distribution of the species (after the completement of the ‘Delta-works’) showed to be limited to the southern parts of Zeeland (fig. 2). Kaarten behorende bij: Hovestad, Assiminea grayana Fleming,1828 in het Deltagebied.