www.sim-online.it : Società Italiana di Malacologia
The Società Italiana di Malacologia (SIM) is a no-profit Society promoting the increasing and diffusion of malacological knowledge. The S.I.M. was founded in 1982 by the union of Società Malacologica Italiana (S.M.I.) and Unione Malacologica Italiana (U.M.I.).
Set composed by 4 species devoted to Cypraea where the shell is depicted with the mantle expanded: Cypraea argus, Cypraea cribraria, Cypraea talpa, Cypraea mappa.