Amphorella grabhami (Pilsbry, 1908)
Taxonomy & Nomenclature
Synonym/s: Ferussacia (Amphorella) tornatellina var. grabhami Pilsbry, 1908
Conservation Status
Extinct (Waldén, 1983; Fernández-Palacios et al., 2025; MolluscaBase eds., 2025)
Last record: "Early-middle 20th century" (Fernández-Palacios et al., 2025)
Distribution & Habitat
Madeira, Madeiran Archipelago, Macaronesia
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Pilsbry, H. A. (1907-1908). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 19: Oleacinidae, Ferussacidae. pp xxvii, 1-366, pls 1-52. Philadelphia, published by the Conchological Department, Academy of Natural Sciences. [pp. 1-64, pls 1-10, 26 June 1907; pp. 65-128, pls 11-20, 31 Aug. 1907; pp. 129-192, pls 21-30, 9 December 1907; i-xxvii, pp. 193-366, pls 31-52, 31 July 1908]
Other references:
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)]
MolluscaBase eds. (2025). MolluscaBase. Amphorella grabhami (Pilsbry, 1908) †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1446994 on 2025-09-11
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.
Waldén, Henrik W. (1983). Systematic and biogeographical studies of the terrestrial Gastropoda of Madeira. With an annotated Check-list. Annales Zoologica Fennica 20: 255-275.