WoRMS taxon details
Fusconaia masoni (Conrad, 1834)
857311 (urn:lsid:marinespecies.org:taxname:857311)
accepted
Species
Elliptio masoni (Conrad, 1834) · unaccepted
Fusconaia subplana (Conrad, 1837) · unaccepted
Lexingtonia casta (I. Lea, 1860) · unaccepted
Lexingtonia subplana (Conrad, 1837) · unaccepted (junior synonym)
Lexingtonia utricula (I. Lea, 1845) · unaccepted
Margarita (Unio) masoni (Conrad, 1834) · unaccepted
Margarita (Unio) pumilus (I. Lea, 1838) · unaccepted (recombination)
Margaron (Unio) castus (I. Lea, 1860) · unaccepted
Margaron (Unio) masoni (Conrad, 1834) · unaccepted
Margaron (Unio) merus (I. Lea, 1853) · unaccepted
Margaron (Unio) pumilus (I. Lea, 1838) · unaccepted (recombination)
Margaron (Unio) striatulus (I. Lea, 1857) · unaccepted
Margaron (Unio) subplanus (Conrad, 1837) · unaccepted
Margaron (Unio) utriculus (I. Lea, 1845) · unaccepted
Pleurobema (Lexingtonia) castum (I. Lea, 1860) · unaccepted
Pleurobema (Lexingtonia) masoni (Conrad, 1834) · unaccepted
Pleurobema (Lexingtonia) subplanum (Conrad, 1837) · unaccepted
Pleurobema (Lexingtonia) utriculum (I. Lea, 1845) · unaccepted
Pleurobema brimleyi (S. H. Wright, 1897) · unaccepted
Pleurobema striatulum (I. Lea, 1857) · unaccepted
Pleurobema subplanum (Conrad, 1837) · unaccepted
Pleurobema utriculum (I. Lea, 1845) · unaccepted
Quadrula (Fusconaia) pumila (I. Lea, 1838) · unaccepted (recombination)
Quadrula (Fusconaia) utriculus (I. Lea, 1845) · unaccepted
Unio (Elliptio) brimleyi S. H. Wright, 1897 · unaccepted
Unio (Elliptio) masoni Conrad, 1834 · unaccepted
Unio (Elliptio) merus I. Lea, 1852 · unaccepted
Unio (Elliptio) striatulus I. Lea, 1857 · unaccepted
Unio (Elliptio) subplanus Conrad, 1837 · unaccepted
Unio brimleyi S. H. Wright, 1897 · unaccepted > superseded combination
Unio castus I. Lea, 1860 · unaccepted
Unio masoni Conrad, 1834 · unaccepted
Unio merus I. Lea, 1852 · unaccepted
Unio pumilus I. Lea, 1838 · unaccepted > junior subjective synonym
Unio striatulus I. Lea, 1857 · unaccepted
Unio subplanus Conrad, 1837 · unaccepted
Unio utriculus I. Lea, 1845 · unaccepted
(of Unio masoni Conrad, 1834) Conrad, T. A. (1834). New fresh water shells of the United States, with coloured illustrations, and a monograph of the genus <i>Anculotus</i> of Say; also a synopsis of the American naiades. Academy of Natural Sciences of Philadelphia, Philadelphia, U.S.A. 1-84, plates 1-9. , available online at http://biodiversitylibrary.org/page/16346317
page(s): 34, pl. 5, fig. 2 [details]
page(s): 34, pl. 5, fig. 2 [details]
MolluscaBase eds. (2025). MolluscaBase. Fusconaia masoni (Conrad, 1834). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=857311 on 2025-05-16
Date
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The webpage text is licensed under a Creative Commons
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Nomenclature
original description
(of Unio masoni Conrad, 1834) Conrad, T. A. (1834). New fresh water shells of the United States, with coloured illustrations, and a monograph of the genus <i>Anculotus</i> of Say; also a synopsis of the American naiades. Academy of Natural Sciences of Philadelphia, Philadelphia, U.S.A. 1-84, plates 1-9. , available online at http://biodiversitylibrary.org/page/16346317
page(s): 34, pl. 5, fig. 2 [details]
original description (of Unio pumilus I. Lea, 1838) Lea, I. (1838). Description of new freshwater and land shells. <em>Transactions of the American Philosophical Society.</em> new ser., 6: 1-154, plates 1-24., available online at https://www.biodiversitylibrary.org/page/26881423
page(s): 23, pl. 7, fig. 17 [details]
original description (of Margaron (Unio) pumilus (I. Lea, 1838)) Lea, I. (1838). Description of new freshwater and land shells. <em>Transactions of the American Philosophical Society.</em> new ser., 6: 1-154, plates 1-24., available online at https://www.biodiversitylibrary.org/page/26881423
page(s): 23 [details]
original description (of Unio utriculus I. Lea, 1845) Lea, I. (1845). Descriptions of new fresh water and land shells. <em>Proceedings of the American Philosophical Society.</em> 4(33): 162-168 [5 December 1845]., available online at http://biodiversitylibrary.org/page/33100618
page(s): 164 [details]
original description (of Unio merus I. Lea, 1852) Lea, I. (1852). Descriptions of new species of the family Unionidae. <em>Transactions of the American Philosophical Society.</em> (NS) 10(2): 253-294, plates 12-29 [1 June 1852, teste Scudder (1885: 57)]., available online at http://biodiversitylibrary.org/page/4529783
page(s): 260, pl. 15, fig. 10 [details]
original description (of Unio striatulus I. Lea, 1857) Lea, I. (1857). Description of twelve new species of naïades from North Carolina. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 85-86 [after 31 March 1857; before 7 January 1858]., available online at http://biodiversitylibrary.org/page/6330349
page(s): 86 [details]
original description (of Unio castus I. Lea, 1860) Lea, I. (1860). Descriptions of seven new species of Unionidae from the United States. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 12: 306-307 [7 August 1860]., available online at http://biodiversitylibrary.org/page/1801247
page(s): 306 [details]
original description (of Unio brimleyi S. H. Wright, 1897) Wright, S. H. (1897). Contribution to a knowledge of United States Unionidae. <em>The Nautilus.</em> 10(12): 136-139., available online at http://biodiversitylibrary.org/page/1819065
page(s): 138 [details]
basis of record Campbell, D. C. & Lydeard, C. (2012). Molecular systematics of <i>Fusconaia</i> (Bivalvia: Unionidae: Ambleminae). <em>American Malacological Bulletin.</em> 30 (1): 1-17. [details]
page(s): 34, pl. 5, fig. 2 [details]
original description (of Unio pumilus I. Lea, 1838) Lea, I. (1838). Description of new freshwater and land shells. <em>Transactions of the American Philosophical Society.</em> new ser., 6: 1-154, plates 1-24., available online at https://www.biodiversitylibrary.org/page/26881423
page(s): 23, pl. 7, fig. 17 [details]
original description (of Margaron (Unio) pumilus (I. Lea, 1838)) Lea, I. (1838). Description of new freshwater and land shells. <em>Transactions of the American Philosophical Society.</em> new ser., 6: 1-154, plates 1-24., available online at https://www.biodiversitylibrary.org/page/26881423
page(s): 23 [details]
original description (of Unio utriculus I. Lea, 1845) Lea, I. (1845). Descriptions of new fresh water and land shells. <em>Proceedings of the American Philosophical Society.</em> 4(33): 162-168 [5 December 1845]., available online at http://biodiversitylibrary.org/page/33100618
page(s): 164 [details]
original description (of Unio merus I. Lea, 1852) Lea, I. (1852). Descriptions of new species of the family Unionidae. <em>Transactions of the American Philosophical Society.</em> (NS) 10(2): 253-294, plates 12-29 [1 June 1852, teste Scudder (1885: 57)]., available online at http://biodiversitylibrary.org/page/4529783
page(s): 260, pl. 15, fig. 10 [details]
original description (of Unio striatulus I. Lea, 1857) Lea, I. (1857). Description of twelve new species of naïades from North Carolina. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 85-86 [after 31 March 1857; before 7 January 1858]., available online at http://biodiversitylibrary.org/page/6330349
page(s): 86 [details]
original description (of Unio castus I. Lea, 1860) Lea, I. (1860). Descriptions of seven new species of Unionidae from the United States. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 12: 306-307 [7 August 1860]., available online at http://biodiversitylibrary.org/page/1801247
page(s): 306 [details]
original description (of Unio brimleyi S. H. Wright, 1897) Wright, S. H. (1897). Contribution to a knowledge of United States Unionidae. <em>The Nautilus.</em> 10(12): 136-139., available online at http://biodiversitylibrary.org/page/1819065
page(s): 138 [details]
basis of record Campbell, D. C. & Lydeard, C. (2012). Molecular systematics of <i>Fusconaia</i> (Bivalvia: Unionidae: Ambleminae). <em>American Malacological Bulletin.</em> 30 (1): 1-17. [details]
Other
additional source
InvertEBase. (2015). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase project (invertebase.org). [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
| Language | Name | |
|---|---|---|
| English | Atlantic pigtoe | [details] |
To ANSP Malacology Collection (syntype of Unio masoni. Conrad, 1834. New fresh water shells of the United States, with Coloured Illustrations, and a Monograph of the Genus Anculotus of Say; also a Synopsis of the American Naiades : 34-35 - catalog no. 41 (from synonym Unio masoni Conrad, 1834)
To Barcode of Life (6 barcodes)
To European Nucleotide Archive, ENA (Fusconaia masoni)
To GenBank (14 nucleotides; 11 proteins)
To IUCN Red List (Critically Endangered) (from synonym Lexingtonia subplana (Conrad, 1837))
To IUCN Red List (Endangered)
To NMNH Extant Collection (IZ MOL 149651 Unio brimleyi Lectotype) (from synonym Unio brimleyi S. H. Wright, 1897)
To NMNH Extant Collection (IZ MOL 84782 Unio castus) (from synonym Unio castus I. Lea, 1860)
To NMNH Extant Collection (IZ MOL 85172 Unio utriculus) (from synonym Unio utriculus I. Lea, 1845)
To NMNH Extant Collection (IZ MOL 85698 Unio merus Holotype) (from synonym Unio merus I. Lea, 1852)
To Barcode of Life (6 barcodes)
To European Nucleotide Archive, ENA (Fusconaia masoni)
To GenBank (14 nucleotides; 11 proteins)
To IUCN Red List (Critically Endangered) (from synonym Lexingtonia subplana (Conrad, 1837))
To IUCN Red List (Endangered)
To NMNH Extant Collection (IZ MOL 149651 Unio brimleyi Lectotype) (from synonym Unio brimleyi S. H. Wright, 1897)
To NMNH Extant Collection (IZ MOL 84782 Unio castus) (from synonym Unio castus I. Lea, 1860)
To NMNH Extant Collection (IZ MOL 85172 Unio utriculus) (from synonym Unio utriculus I. Lea, 1845)
To NMNH Extant Collection (IZ MOL 85698 Unio merus Holotype) (from synonym Unio merus I. Lea, 1852)
