Colomba, M.S., Gregorini, A., Liberto, F., Reitano, A., Giglio, S. & Sparacio, I. (2011) 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 (1), 1–42.
https://doi.org/10.11646/zootaxa.3134.1.1