original description
Mousson, A. (1856). Verzeichniss der von Herrn Dr. Schläfli eingekommenen zweiten malacologischen Sendung. <em>Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich.</em> 1 (4): 395-399. Zürich [>18 October]., available online at https://www.biodiversitylibrary.org/page/9219493
page(s): 398 [details]
taxonomy source
Walther, F. & Hausdorf, B. (2018). Case 3777 – Clausilia index Mousson, 1863, Clausilia semilamellata Mousson, 1863, Clausilia derasa Mousson, 1863 (Gastropoda, Stylommatophora, Clausiliidae): proposed conservation by suppression of the senior synonyms, Clausilia unilamellata Mousson, 1856, Clausilia multilamellata Mousson, 1856 and Clausilia firmata Mousson, 1856. <em>The Bulletin of Zoological Nomenclature.</em> 75(1), 237-240, (31 December 2018)., available online at https://doi.org/10.21805/bzn.v75.a048
note: suppressed the unused senior synonym Clausilia firmata Mousson, 1856, and conserved the junior synonym Clausilia derasa Mousson, 1863 [details]
From editor or global species database
Type locality “Reduktaleh (Todt am Meeresstrande)”, Gruzija (Schläffli). [details]