Manganelli, G., Sparacio, I. & Giusti, F. (1989). New data on the systematics of two Sicilian land snails, Helix parlatoris Bivona, 1839 and Helix reinae L. Pfeiffer, 1856 and description of Schileykiella n. gen. (Pulmonata: Hygromiidae). Journal of Conchology, 33 (3): 141-156. London.
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Manganelli, G., Sparacio, I. & Giusti, F.
1989
New data on the systematics of two Sicilian land snails, Helix parlatoris Bivona, 1839 and Helix reinae L. Pfeiffer, 1856 and description of Schileykiella n. gen. (Pulmonata: Hygromiidae).