Colomba, M. Stella, Armando Gregorini, Fabio Liberto, Agatino Reitano, Salvatore Giglio, and Ignazio Sparacio. “Monographic Revision of the Endemic Helix Mazzullii De Cristofori & Jan, 1832 Complex from Sicily and Re-Introduction of the Genus Erctella Monterosato, 1894 (Pulmonata, Stylommatophora, Helicidae)”. Zootaxa 3134, no. 1 (December 16, 2011): 1–42. Accessed April 3, 2025. https://mapress.com/zt/article/view/zootaxa.3134.1.1.