Cylichnidia cylichna (R. T. Lowe, 1852)
Taxonomy & Nomenclature
Synonym/s: Achatina (Cylichnidia) cylichna R. T. Lowe, 1852
Conservation Status
Extinct (MolluscaBase eds., 2021; Fernández-Palacios et al., 2025)
Last record: 19th-20th century (Fernández-Palacios et al., 2025)
Distribution & Habitat
Madeira, Madeiran Archipelago, Macaronesia
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Lowe, R. T. (1852). Brief diagnostic notices of new Maderan land shells. The Annals and Magazine of Natural History. (2) 9 (50): 112-120.
Other references:
Bank, R. A., Groh, K. and Ripken, Th. E. J. (2002). Catalogue and bibliography of the non-marine Mollusca of Macaronesia. In: Falkner, M., Groh, K. & Speight, M.C.D. (eds.). Collectanea Malacologica. Festschrift für Gerhard Falkner. 89-235, pl. 14-26. [20 September]. München / Hackenheim (Friedrich-Held-Gesellschaft / ConchBooks).
Fernández-Palacios, José María, Fructuoso, Melania, Illera, Juan Carlos, Rando, Juan Carlos, de Nascimento, Lea, Fernández-Palacios, Enrique, Patiño, Jairo, Otto, Rüdiger, Castilla-Beltrán, Álvaro, González, Esther Martín, Orihuela-Rivero, Raúl, Alcover, Josep Antoni, Whittaker, Robert J. (2025). A synthesis of terrestrial species extinctions in the Macaronesian Islands and their correspondence with human occupancy. PNAS Nexus 4(8): pgaf215. https://doi.org/10.1093/pnasnexus/pgaf215 [Supplementary data (.docx)]
Goodfriend, Glenn A., Cameron, R. A. D. and Cook, L. M. (1994). Fossil evidence of recent human impact on the land snail fauna of Madeira. Journal of Biogeography 21(3): 309320. https://doi.org/10.2307/2845532
MolluscaBase eds. (2021). MolluscaBase. Cylichnidia cylichna (R. T. Lowe, 1852) †. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1446999 on 2025-09-12
Seddon, M. B. (2008). The landsnails of Madeira. The illustrated compendium of the landsnails and slugs of the Madeiran archipelago. Biotir Reports [Studies in biodiversity and systematics of terrestrial organisms], 2: i-viii, 1-196.