Helenoconcha leptalea (Smith, 1892:264)
Taxonomy & Nomenclature
Synonym/s: Patula leptalea Smith, 1892:264
Conservation Status
Extinct
Last record: 1870's (Mollusc Specialist Group, 1996b)
IUCN RedList status: Extinct
Distribution
St. Helena
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Smith. (1892). P. Z. S., p. 264.
Other references:
Baillie, J. and Groombridge, B. (eds). 1996. 1996 IUCN Red List of Threatened Animals. IUCN, 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.
Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.
Mollusc Specialist Group. (1996a). Helenoconcha leptalea. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. (http://www.iucnredlist.org). Downloaded on 15 July 2013.
Mollusc Specialist Group. (1996b). Helenoconcha leptalea. The IUCN Red List of Threatened Species 1996: e.T9765A13014709. https://dx.doi.org/10.2305/IUCN.UK.1996.RLTS.T9765A13014709.en. Accessed on 14 June 2022.
Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.
http://ia600202.us.archive.org/13/items/manualofconcholo28tryorich/manualofconcholo28tryorich.pdf