Bythiospeum tschapecki (Clessin, 1878)
Steirische Hohlendeckelschnecke
Taxonomy & Nomenclature
Synonyms: Vitrella tschapecki Clessin, 1878; Paladilhiopsis tschapecki Clessin, (1878)
Conservation Status
Missing (Reischütz & Seddon, 2026)
Last record: 1980 (Reischütz & Seddon, 2026)
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution & Habitat
Buchkogel cave, Austria
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Clessin, S. (1878). Eine neue Vitrella. Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft 10: 9-11.
Other references:
Benke, M., Brändle, M., Albrecht, C. and Wilke, T. (2009). Pleistocene phylogeography and phylogenetic concordance in cold-adapted spring snails (Bythinella spp.). Molecular Ecology 18(5): 890-903.
Clessin, S. (1882). Monographie des Gen. Vitrella Cless. Malakozoologische Blätter, Neue Folge 5: 110-129, pls 1-2. Cassel et Berlin.
Glöer, P. (2022). The freshwater gastropods of the West Palaearctis. Identification key, Anatomy, Ecology, Distribution. II. Moitessieriidae, Bythinellidae, Stenothyridae. Hetlingen: ConchBooks. 370 pp.
Haase, M. (1995). The stygobiont genus Bythospeum in Austria: a basic re- vision and anatomical description of B. cf. geyeri from Vienna (Caenogastropoda: Hydrobiidae). American Malacological Bulletin 11(2): 123-137.
MolluscaBase eds. (2026). MolluscaBase. Bythiospeum tschapecki (Clessin, 1878). Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1001612 on 2026-07-16
Reischütz, A. and Reischütz, P. L. (2007). Rote Liste der Weichtiere (Mollusca) Österreichs. In: Zulka, K.P. (ed.), Rote Listen gefährdeter Tiere Österreichs Teil 2: Kriechtiere, Lurche, Fische, Nachtfalter, Weichtiere, pp. 363-433. Böhlau Verlag, Wien.
Reischütz, A. and Reischütz, P. L. (2009). Mollusca (Weichtiere). In: W. Rabitsch and F. Essl (eds), Endemiten - Kostbarkeiten in Osterreichs Pflanzen-und Tierwelt, pp. 318-376. Verein fur Kamten und Umweltbundesamt, Wien.
Reischütz, P. L. and Seddon, M. B. (2026). Bythiospeum tschapecki. The IUCN Red List of Threatened Species 2026: e.T3411A222451130. https://dx.doi.org/10.2305/IUCN.UK.2026-1.RLTS.T3411A222451130.en. Accessed on 08 August 2026.