Advena stoddartii stoddartii (Gray, 1834:65)

Stoddart's helicarionid land snail



Taxonomy & Nomenclature

Synonym/s: Caracolla stoddartii Gray, 1834:65 (basionym); Quintalia stoddartii (Gray, 1834:65)


The genus Quintalia was erected by (Preston, 1913). This species was transferred to the genus Advena by (Hyman et al., 2023).


Conservation Status

Extinct (Régnier et al., 2009; Cowie et al., 2017)

IUCN RedList status: Extinct


The genus is believed to be extinct.



Norfolk Island, Australia


Biology & Ecology










Original scientific description:

Gray, J. E. (1834). [Exhibition of an extensive series of land and freshwater shells regarded as hitherto undescribed]. Proceedings of the Zoological Society of London. 1834: 63-68.


Other references:

Baillie, J. and Groombridge, B. (eds). 1996. 1996 IUCN Red List of Threatened Animals. pp. 378. International Union for Conservation of Nature, Gland, Switzerland and Cambridge, UK.

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.

Hyman, Isabel T., Caiza, Jennifer and Köhler, Frank. (2023). Systematic revision of the microcystid land snails endemic to Norfolk Island (Gastropoda: Stylommatophora) based on comparative morpho-anatomy and mitochondrial phylogenetics. Invertebrate Systematics 37(6): 334-443.

Iredale, Tom. (1945). The land Mollusca of Norfolk Island. The Australian Zoologist 2(1): 46-71.

MolluscaBase eds. (2022). MolluscaBase. Quintalia stoddartii (J. E. Gray, 1834). Accessed at: on 2022-03-26

MolluscaBase eds. (2023). MolluscaBase. Advena stoddartii stoddartii (J. E. Gray, 1834). Accessed at: on 2023-07-26

Mollusc Specialist Group. (1996). Quintalia stoddartii. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. ( Downloaded on 28 January 2012.

Neuweger, Diana, White, Peter and Ponder, Winston F. (2001). Land snails from Norfolk Island sites. In: The Prehistoric Archaeology of Norfolk Island, Southwest Pacific, ed. Atholl Anderson and Peter White. Records of the Australian Museum, Supplement 27: 115-122.

Preston, H. B. (1913). Characters of new genera and species of terrestrial Mollusca from Norfolk Island. Annals and Magazine of Natural History, ser. 8, 12: 522-538.

Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.


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