Madgeaconcha sevathiani Griffiths & Florens, 2004
Taxonomy & Nomenclature
IUCN RedList status: Critically Endangered (Possibly Extinct)
Biology & Ecology
Holotype: AMS C204769
Type locality: "Mauritius, 900m west of Quinze Cantons, Vacoas"
Paratype: AMS C205039
Griffiths and Florens (2004:164) mentions three shells being collected of this species, however the third specimen was not desgnated as a paratype for some reason and thus is counted as a 'referable specimen'.
Original scientific description:
Griffiths, Owen Lee and Florens, F. B. Vincent. (2004). Ten new species of Mascarene land snails (Mollusca: Gastropoda) and their conservation status. Molluscan Research 24: 161-177.
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.
Florens, V. & Griffiths, O. 2020. Madgeaconcha sevathiani (amended version of 2014 assessment). The IUCN Red List of Threatened Species 2020: e.T177593A176633277. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T177593A176633277.en. Accessed on 08 July 2022.
Griffiths, O.L. and Florens, F.B.V. 2006. A field guide to the non-marine molluscs of the Mascarene Islands (Mauritius, Rodrigues, Réunion) and the northern dependencies of Mauritius. Bioculture Press Mauritius.
Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.