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Post by another specialist on Jun 21, 2005 15:24:11 GMT
Common Name/s CORDED PURG (E) Red List Category & Criteria EX ver 2.3 (1994) Year Assessed 2000 Assessor/s Mollusc Specialist Group Evaluator/s Bogan, A.E. & Seddon, M.B. (Mollusc Red List Authority) Justification Hershler (1994) considered this species was extinct when he described it. Country Names United States [RE] (Nevada [RE]) www.iucnredlist.org/search/details.php?species=40048 |
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Post by another specialist on Jun 21, 2005 15:26:10 GMT
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Post by sebbe67 on Oct 23, 2005 17:45:33 GMT
corded springsnail
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Post by another specialist on Nov 14, 2005 11:10:21 GMT
Rounded Global Status: GX - Presumed Extinct Reasons: Only ever known from fossils and one live population in Nevada. Reported occurrences from Oregon refer to another species, P. ARCHIMEDIS. Recent investigators have failed to find any living individuals. Global Range Comments: This species may have only occurred in Pyramid Lake in Nevada where Hershler and Thompson (1987) confirmed its description from rehydrated material from historic live collections. Material collected from Oregon by Hanna (1930) was mistakenly identified as P. NEVADENSIS (Frest pers. comm. 2000). www.natureserve.org/ |
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Deleted
Deleted Member
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Post by Deleted on May 5, 2006 10:52:16 GMT
Hi ! Pyrgulopsis nevadensis, three different specimens, these images are not so fine  :  |
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Post by another specialist on May 5, 2006 15:37:32 GMT
Still pretty good work Noisi - better than what i could do m8
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Post by another specialist on Mar 22, 2008 8:48:20 GMT
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Post by another specialist on Mar 22, 2008 8:49:18 GMT
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Post by another specialist on Mar 22, 2008 8:50:25 GMT
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Post by Sebbe on Jan 5, 2019 12:35:53 GMT
Hershler, R. and H.-P. Liu. 2017. Annotated checklist of freshwater truncatelloidean gastropods
of the western United States, with an illustrated key to the genera. Technical Note 449.repository.si.edu/handle/10088/35012
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Post by koeiyabe on Jan 6, 2019 2:52:46 GMT
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