MolluscaBase name details
Ferrissia (Laevapex) obscura (Haldeman, 1844)
1513870 (urn:lsid:marinespecies.org:taxname:1513870)
unaccepted (junior synonym)
Species
(of Ancylus obscurus Haldeman, 1844) Haldeman, S. S. (1844). <i>Ancylus</i>. A monograph of the freshwater univalve Mollusca of the United States, including notices of species in other parts of North America. 7. J. Dobson, Philadelphia. 1-14, plate 1.
page(s): 9, pl. 1, fig. 5 [details]
page(s): 9, pl. 1, fig. 5 [details]
MolluscaBase eds. (2021). MolluscaBase. Ferrissia (Laevapex) obscura (Haldeman, 1844). Accessed at: http://molluscabase.org/aphia.php?p=taxdetails&id=1513870 on 2025-09-11
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original description
(of Ancylus obscurus Haldeman, 1844) Haldeman, S. S. (1844). <i>Ancylus</i>. A monograph of the freshwater univalve Mollusca of the United States, including notices of species in other parts of North America. 7. J. Dobson, Philadelphia. 1-14, plate 1.
page(s): 9, pl. 1, fig. 5 [details]
basis of record Wurtz, C. B. (1951). Catalogue of Ancylidae of South and Central America and the West Indies, with description of a new species. <em>The Nautilus.</em> 64(4): 123-131, pl. 4., available online at https://www.biodiversitylibrary.org/page/8524394
page(s): 125 [details]
additional source Walker, B. (1920). <i>Ancylus obscurus</i> Haldeman and species referred to it. <em>The Nautilus.</em> 33(3): 99-103., available online at https://www.biodiversitylibrary.org/page/1744610
page(s): 101-102; note: See Ferrissia obscura (Haldeman, 1844). [details]
page(s): 9, pl. 1, fig. 5 [details]
basis of record Wurtz, C. B. (1951). Catalogue of Ancylidae of South and Central America and the West Indies, with description of a new species. <em>The Nautilus.</em> 64(4): 123-131, pl. 4., available online at https://www.biodiversitylibrary.org/page/8524394
page(s): 125 [details]
additional source Walker, B. (1920). <i>Ancylus obscurus</i> Haldeman and species referred to it. <em>The Nautilus.</em> 33(3): 99-103., available online at https://www.biodiversitylibrary.org/page/1744610
page(s): 101-102; note: See Ferrissia obscura (Haldeman, 1844). [details]
