Leiostyla gibba (R. T. Lowe, 1852)
Madeiran land snail (generic)
Taxonomy & Nomenclature
Synonym/s: Pupa (Alvearella) gibba R. T. Lowe, 1852; Wollastonula gibba (R. T. Lowe, 1852)
Conservation Status
Missing (Seddon, 2011; Teixeira & Seddon, 2025) or Extinct (WCMC, 1992:207)
Last record: 1850-1859 (dead) (Teixeira & Seddon, 2025); 1878 or before (Wollaston, 1878; Seddon, 2011); 1870's (WCMC, 1992:207)
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution & Habitat
Madeira, Madeiran Archipelago, Macaronesia
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Lowe, R. T. (1852). Brief diagnostic notices of new Maderan land shells. Annals and Magazine of Natural History, second series, 9(50): 112-120, 275-279.
Other references:
Cook, L. M., Goodfriend, G. A. and Cameron, R. A. D. (1993). Changes in the land snail fauna of eastern Madeira during the Quaternary. Philosophical Transactions of the Royal Society, London series B 339(1287): 83-103.
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.
Fontaine, B., Bouchet, P., Van Achterberg, K., Alonso-Zarazaga, M.A., Araujo, R., Asche, M., Aspöck, U. Audisio, P., Aukema, B., Bailly, N., Balsamo, M., Bank, R.A., Barnard, P., Belfiore, C., Bogdanowicz, W., Bongers, T., Boxshall, G., Burckhardt, D., Camicas, J.-L., Chylarecki, P., Crucitti, P., Deharveng,L., Dubois, A., Enghoff, H., Faubel, A., Fochetti, R., Gargominy, O., Gibson, D., Gibson, R., Soledad Gómez López, M., Goujet, D., Harvey, M.S., Heller, K.-G., Van Helsdingen, P., Hoch, H., De Jong, H., De Jong, Y., Karsholt, O., Los, W., Lundqvist, L., Magowski, W., Manconi, R., Martens, J. Massard, J.A., Massard-Geimer, G., Mcinnes, S.J., Mendes, L.F., Mey, E., Michelsen, V., Minelli, A., Nielsen, C., Nieto Nafría, J.M., Van Nieukerken, E.J., Noyes, J., Pape, T., Pohl, H., De Prins, W., Ramos, M., Ricci, C., Roselaar, C., Rota, E., Schmidt-Rhaesa, A., Segers, H., Zur Strassen, R., Szeptycki, A., Thibaud, J.-M., Thomas, A., Timm, T., Van Tol, J., Vervoort, W. and Willmann, R. (2007). The European Union’s 2010 target: Putting rare species in focus. Biological Conservation 139(1-2): 167-185. http://dx.doi.org/10.1016/j.biocon.2007.06.012
MolluscaBase eds. (2026). MolluscaBase. Leiostyla gibba (R. T. Lowe, 1852). Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1050397 on 2026-07-17
Seddon, M. B. (2008). An illustrated compendium of the landsnails and slugs of the Madeiran archipelago. Studies in Biodiversity and Systematics of Terrestrial Organisms from the National Museum of Wales. BIOTIR Reports 2. National Museum of Wales, Cardiff.
Seddon, M. B. (2011). Leiostyla gibba. The IUCN Red List of Threatened Species 2011: e.T11458A3279526. http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T11458A3279526.en. Downloaded on 15 May 2018.
Teixeira, D. and Seddon, M. B. (2025). Leiostyla gibba. The IUCN Red List of Threatened Species 2025: e.T11458A220196128. https://dx.doi.org/10.2305/IUCN.UK.2025-2.RLTS.T11458A220196128.en. Accessed on 08 August 2026.
Waldén, H. W. (1983). Systematic and biogeographical studies of the terrestrial Gastropoda of Madeira. With an annotated Check-list. Annales Zoologica Fennica 20: 255-275.
WCMC (World Conservation Monitoring Centre). (1992). Global Biodiversity: Status of the Earth's living resources. London: Chapman & Hall. xx + 594 pp.
Wells, S. M., Pyle, R. M. and Collins, N. M. (compilers). (1983). The IUCN Invertebrate Red Data Book. IUCN, Gland, Switzerland and Cambridge, UK.
Wollaston, T. V. (1878). Testacea Atlantica or the land and freshwater shells of Azores, aderiras, Salvages, Canaries, Cape Verdes and Saint Helena. London; Reeve.