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FIGURE 43. Autographic note by Monterosato (Civic Museum of Natural History, Milan) commenting on several mazzullii
specimens caught on Monte Pellegrino in 1912: “… Appartiene al genere Erctella, Monts. . da me pubblicato e adottato da Pils-
bry. Pei suoi caratteri anatomici differisce notevolmente dal Cryptomphalus (aspersa)” (for English translation see Discussion
section).

Erctella insolida (Monterosato, 1892)
Figs. 18–20, 23

Helix (Helicogena) aspersa var. insolida Monterosato 1892: 26 (Favignana?; Monte San Giuliano).
Helix (Erctella) mazzullii forma insolida — Monterosato 1894: 168-169 (Monte San Giuliano or Erice, near Trapani).
Helix mazzulli — De Gregorio 1894: 7 (fossil, Levanzo island); Piperno 1997: 140 (fossil: Uzzo cave).
? Helix sp. — Varga 1989: 77 (insolida?).
Helix mazzulli var. vitincola De Gregorio 1895: 193 (San Vito).
Helix (Cryptomphalus) aspersa — Alzona 1971: 220 [partim].
Cornu aspersum — Bank 2009 [partim], (Sicily).
Cantareus mazzullii — Fiorentino et al. 2004: 89 (fossil: Levanzo island).
Cornu mazzullii insolidum — Colomba et al. 2008: 90.
Erctella insolida — Liberto et al. 2010: 115–116, fig. 156.

Shell (Figs. 18–20). Large for the genus; height 33–40 mm (mean 34 mm); maximum diameter 29–35 mm (mean
31.8 mm); aperture height 22–26 mm (mean 24 mm); aperture maximum diameter 23.5–28 mm (mean 25 mm);
more globose; brownish or greenish; spire less elevated; external surface with very thin growth lines; peristome
thickened, simple or little reflected; aperture rounded.

Animal. Generally dark.
Genitalia (Fig. 23). Diverticulum of bursa copulatrix approximately as long as duct of bursa copulatrix; two

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