Athearnia crassa 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Sorbeoconcha Pleuroceridae

Scientific Name: Athearnia crassa (Haldeman, 1841)
Common Name(s):
English Boulder Snail
Leptoxis crassa (Haldeman, 1841)
Taxonomic Source(s): Johnson, P.D., Bogan, A.E., Brown, K.M., Burkhead, N.M., Cordeiro, J.R., Garner, J.T., Hartfield, P.D., Lepitzki, D.A.W., Mackie, G.L., Pip, E., Tarpley, T.A., Tiemann, J.S., Whelan, N.V. and Strong, E.E. 2013. Conservation status of freshwater gastropods of Canada and the United States. Fisheries 38(6): 247-282.
Taxonomic Notes: Athearnia crassa was formerly placed as a subspecies of Leptoxis (= Athearnia) crassa (see Dillon and Ahlstedt 1997). Athearnia crassa crassa and Athearnia crassa anthonyi are distinct from one another and Athearnia anthonyi and Athearnia crassa are now recognized as distinct species (see Dillon and Ahlstedt 1997; Minton and Savarese 2005).

Appeared in IUCN Red Lists from 1996 to 2006 under the incorrectly spelt name Leptoxis crassa. Was also incorrectly listed as Vulnerable.

Assessment Information [top]

Red List Category & Criteria: Extinct ver 2.3
Year Published: 1996
Date Assessed: 1996-08-01
Needs updating
Assessor(s): Mollusc Specialist Group
Previously published Red List assessments:

Geographic Range [top]

Countries occurrence:
Regionally extinct:
United States (Alabama, Georgia, Tennessee, Virginia)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Citation: Mollusc Specialist Group. 1996. Athearnia crassa. The IUCN Red List of Threatened Species 1996: e.T11768A3304335. . Downloaded on 26 April 2018.
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