Clausiliidae from the Villafranchian site Monte Serampoli (Lower Valdarno, Tuscany, Italy) (Gastropoda: Pulmonata: Stylommatophora)

In this paper the Clausiliidae of the Villafranchian site Monte Serampoli (Lower Valdarno, Tuscany, Italy) are described. The clausiliid fauna comprises six species, five of them available as complete shells and (or) apertural fragments, one only as apical fragment and thus not determinable as species. The following species taxa are described as new: Cochlodina (Procochlodina) esuae n. sp., Pravispira italiana n. sp., Serrulella zanchettai n. sp., Serruluna pisana n. sp. Remarks to the land snail fauna and its age and to the particularities of the clausiliid fauna are added. The fauna is of Late Pliocene age.