Rotadiscus is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae.
Species Species within the genus Radioconus include: Rotadiscus hermanni (L. Pfeiffer, 1866) - type species of the genus Rotadiscus Rotadiscus insularis (Climo, 1978) Rotadiscus jamiesoni (Climo, 1978) Rotadiscus protoinsularis Climo, 1989 Rotadiscus smithae (Dell, 1954) Rotadiscus takakaensis (Climo, 1981) an undescribed species of Rotadiscus from Toca do Gonçalo cave in BrazilSilva M. S. & Ferreira R. L. (2016). "The first two hotspots of subterranean biodiversity in South America". Subterranean Biology 19: 1-21. .
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