Xerogyra spadae
Xerogyra spadae is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
The specific name spadae, "Spada's", Pietro Calcara commemorated Giovanni Jacopo Spada, an Italian naturalist and pioneering geologist of Verona.
Distribution
Candidula spadae is native to Central Italy. The species in sparsely distributed. It is found in the central Apennines. However, the IUCN asserts that the species is also found in extension to Gargano. It is found in the Sibillini Mountains, including Monte Vettore, and then southward to the Monti Reatini, the Gran Sasso d'Italia, and the Monti della Meta.Description
The shell of Xerogyra spadae is pale white in color. Often, there are narrow light brownish color bands on the shell. The shell is almost smooth.The whorls are, to some extent, convex in shape. The number of whorls range between 5.5 and 6. The last two whorls increase more rapidly. The last whorl is weakly angulated. It does not descend near the main opening of the shell, the aperture. The aperture is clearly visible and large. The color inside the aperture is white or light yellowish. There is a lip inside the aperture which is white in color.
The umbilicus is initially narrow, but at the last whorl it increases to one-fourth of the shell diameter.
The width of the shell is 10–16 mm. The height of the shell is 6.5–8.5 mm.