Bythinella eutrepha (Paladilhe, 1867)
Taxonomy & Nomenclature
Synonyms: Hydrobia eutrepha Paladilhe, 1867; Bythinella cebennensis eutrepha (Paladilhe, 1867); Paludinella eutrepha (Paladilhe, 1867); Bythinella vasseuri Girardi, 2009
Conservation Status
Missing (Prié, 2010, 2026)
Last record: 1800's (dead shells) (Prié, 2026)
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution & Habitat
Lez River, France
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Paladilhe, A. (1867). Nouvelles miscellanées malacologiques, IV. Espèces inédites, nouvelles ou peu connues du département de l'Hérault. – Nouvelles miscellanées malacologiques, 2e fascicule. 39-53, pl. 2 fig. 10-21, pl. 3 fig. 23-30. Paris (F. Savy). [1 March]
Other references:
Bernasconi, R. (2000). Révision du genre Bythinella (Moquin-Tandon, 1855) (Gastropoda Prosobranchia Hydrobiidae : Amnicolinae Bythinellini). Documents malacologiques HS n°1: 1-126.
Boeters, H. D. (2019). Old and new taxa of Bythinella Moquin-Tandon, 1856 (Gastropoda: Caenogastropoda: Truncatelloidea) in Spain and adjacent France. Archiv für Molluskenkunde 148(2): 161-183.
Boeters, H. D. (2022). The genus Bythinella Moquin-Tandon, 1856 in the French Languedoc (Gastropoda: Caenogastropoda: Truncatelloidea). Archiv für Molluskenkunde 151(2): 107-118. https://doi.org/10.1127/arch.moll/151/107-118
Boeters, H. D. and Falkner, G. (2008). Westeuropaische Hydrobiidae 11. Die Gattung Bythinella Moquin-Tandon 1856 in Westeuropa, 2. Heldia 5(4-5): 115-136, pls 14-18. [December 2008]
Cowie, Robert H., Régnier, Claire, Fontaine, Benoît, and Bouchet, Philippe. (2017). Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41.
Cuttelod, A., Seddon, M. and Neubert, E. (2011). European Red List of Non-marine Molluscs. Publications Office of the European Union, Luxembourg.
Falkner, G., Ripken, T. E. J. and Falkner, M. (2002). Mollusques continentaux de la France: Liste de Référence annotée et Bibliographie. Patrimoines Naturels.
Glöer, P. (2022). The freshwater gastropods of the West Palaearctis. Identification key, Anatomy, Ecology, Distribution. II. Moitessieriidae, Bythinellidae, Stenothyridae. Hetlingen: ConchBooks. 370 pp.
MolluscaBase eds. (2025). MolluscaBase. Bythinella eutrepha (Paladilhe, 1867). Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=737970 on 2026-08-09
Prié, V. (2010). Bythinella eutrepha. The IUCN Red List of Threatened Species 2010: e.T155832A4851241. https://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T155832A4851241.en. Downloaded on 25 December 2015.
Prié, V. (2026). Bythinella eutrepha. The IUCN Red List of Threatened Species 2026: e.T299715138A234137653. https://dx.doi.org/10.2305/IUCN.UK.2026-1.RLTS.T299715138A234137653.en. Accessed on 08 August 2026.
https://extinctanimals.proboards.com/thread/23777/bythinella-eutrepha