Caseolus calvus

Caseolus calvus is a species of small air-breathing land snail, terrestrial pulmonate gastropod mollusks in the family Geomitridae, the hairy snails and their allies.

Subspecies

 * Caseolus calvus calvus (R. T. Lowe, 1831)
 * Caseolus calvus galeatus (R. T. Lowe, 1862)

The subspecies Caseolus calvus galeatus (R. T. Lowe, 1862) endemic to Madeira is globally extinct.

Distribution
This species of land snail lives in Madeira, Portugal.