Morphological investigation of genital organs and first insights into the phylogeny of the genus Siciliaria Vest, 1867 as a basis for a taxonomic revision (Mollusca, Gastropoda, Clausiliidae)

Siciliaria tiberii tiberii (A. Schmidt, 1868), Capo Rama, Terrasini 29.1–29.2 palatal plicae 29.3 parietal lamellae. Siciliaria tiberii alcamoensis Brandt, 1961 comb. nov., Piano Margi, Carini 29.4 parietal lamellae 29.5 palatal plicae. Siciliaria tiberii armettensis ssp. nov., Grotta dei Puntali, Carini 29.6 parietal lamellae 29.7–29.8 palatal plicae. Siciliaria tiberii scalettensis Beckmann, 2004 Portella Scaletta, Villagrazia 29.9–29.10 palatal plicae 29.11 parietal lamellae.