Helix entodonta L. Pfeiffer, 1859 is moved to Zilchistrophia Weyrauch, 1960 based on its small size and the presence of three palatal plicae. This has implications on the diagnosis of Systrophia L. Pfeiffer, 1855, as now none of the known species have palatal plicae inside the shell. That Systrophia does not have this type of plicae supports that Entodina Ancey, 1887 should be regarded as a separate, valid genus within the Scolodontidae.

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doi.org/10.12657/folmal.032.016
Folia Malacologica

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Roosen, Marijn, & Breure, A. (2024). Helix entodonta L. Pfeiffer, 1859, a terrestrial snail from Ecuador, is a species of Zilchistrophia Weyrauch, 1960 (Gastropoda: Scolodontidae): Implications for the diagnosis and interpretation of Systrophia Pfeiffer, 1855 and Entodina Ancey, 1887. Folia Malacologica, 32(3), 186–190. doi:10.12657/folmal.032.016