This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Illustrated Index of British Shells Plate . En Illustrated Index of British Shells Plate XXIII Fig Name in textAccepted name Helix pisana MllerTheba pisanaHelix aspersa MllerHelix aspersaHelix virgata CostaCernuella virgataHelix cantiana MontaguMonacha cantianaHelix ericetorum MllerHelicella italaHelix rufescens PennantArianta