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Page last updated
Wed 04 Dec 2024

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

The nominal species (available and otherwise) in this synonymy are listed by usage rather than strictly by publication date. The primary sorting order is by the most recent year (since 1969) that the species name was treated as valid, and then nominal species are sorted secondarily by publication year.

The taxonomic history of the valid species (since 1900) is listed at the bottom of the page.

Search the database pages:

Unionoida | Unionoidea | Unionidae | Ambleminae | Quadrulini | Megalonaias

species Megalonaias nervosa (Rafinesque, 1820): nominal species
     24 specimens available.

Unio (Leptodea) nervosa Rafinesque, 1820
Rafinesque, 1818, Amer. Mon. Mag. 3: 355 [as ‘Potamilus nervosus’]. [nomen nudum]
Rafinesque, 1820, Ann. Gén. Sci. Phys. 5 (13): 296, pl. 80, figs. 8-10 [also as ‘Elliptio nervosa’].
Rafinesque, 1864, [in] Binney & Tryon, reprint: 22, 41.

Unio (Leptodea) nervosaRafinesque (1820)
Potamilus nervosusRafinesque (1818)
Unio nervosusFerussac (1835), Conrad (1853), Küster (1861)
Plagiola nervosaAgassiz (1852)
Truncilla donaciformisOrtmann & Walker (1922)
Lampsilis (Ligumia) nervosaFrierson (1927)
Ligumia nervosaHaas (1969)
Megalonaias nervosaMorrison (1969), Oesch (1984), Turgeon et al. (1988), Cummings & Mayer (1992), ..., Czaja et al. (2023), Neemuchwala et al. (2023), Hopper et al. (2023), Hauck et al. (2023)
Megalonaias giganteaMathiak (1979), R.I. Johnson (1980)
Tritogonia nervosaITIS (2012)
M. nervosaMarshall et al. (2018)

Unio crassus var. giganteus Barnes, 1823
Barnes, 1823, Amer. J. Sci. 6 (1-2): 119.
(intro'd as intra-sp. of Unio crassus Say, 1817)

Unio crassus var. giganteusBarnes (1823)
Megalonaias giganteaOrtmann & Walker (1922), Ortmann (1924), Ortmann (1925), F.C. Baker (1928), ..., Mathiak (1979), Gordon et al. (1979), R.I. Johnson (1980), ITIS (2012)
Amblema (Megalonaias) giganteaFrierson (1927), Haas (1930)
Megalonaias gigantea giganteaHaas (1969)
Megalonaias nervosaMorrison (1969), Oesch (1984), Vidrine (1993), Howells et al. (1996), ..., Williams et al. (2008), Watters et al. (2009), IUCN (2011), Pfeiffer et al. (2018)
Amblema giganteaDavis & Fuller (1981)

Unio boykinianus Lea, 1840
Lea, 1840, Proc. Amer. Phil. Soc. 1: 288.
Lea, 1842, Trans. Amer. Phil. Soc. 8 [O. 3]: 208 [46], pl. 13, fig. 22.
Type(s): TOPOTYPE USNM_83903, Columbus, Georgia.

Unio boykinianusLea (1840), Sowerby (1868), B.H. Wright (1888)
Complanaria boykinianusAgassiz (1852)
Margaron (Unio) boykinianusLea (1852), Lea (1870)
Plectomerus boykianusConrad (1853)
Unio (Metaptera) boykinianusAdams & Adams (1857)
Unio baykinianusKüster (1861), Paetel (1890)
Unio multiplicatusCall (1895)
Quadrula (sec. Crenodonta) boykinianaSimpson (1900), Simpson (1914)
Amblema (Megalonaias) gigantea-boykinianaFrierson (1927)
Crenodonta boykinianaClench & Turner (1956)
Megalonaias gigantea boykinianaHaas (1969)
Megalonaias giganteaBurch (1975)
Megalonaias boykinianaDavis (1984), Turgeon et al. (1988), Williams et al. (1993), Rosenberg et al. (1994), Rosenberg et al. (1997), Graf & Cummings (2007), Cummings & Graf (2010), ITIS (2012)
Amblema plicataVidrine (1993)
Megalonaias nervosaMulvey et al. (1997), Brim Box & Williams (2000), Williams et al. (2008), IUCN (2011), Williams et al. (2011), Williams et al. (2014), Pfeiffer et al. (2018), Graf & Cummings (2021)

Unio triumphans B.H. Wright, 1898
B.H. Wright, 1898, Nautilus 11(9): 101.
Type(s): HOLOTYPE USNM_150554, Coosa Riv., St. Clair Co., Ala.

Unio triumphansB.H. Wright (1898)
Quadrula (sec. Crenodonta) triumphansSimpson (1900), Simpson (1914)
Quadrula triumphansSimpson (1900)
Megalonaias triumphansOrtmann (1923), Haas (1969)
Amblema (Megalonaias) triumphansFrierson (1927)
Megalonaias nervosaParmalee & Bogan (1998), Brim Box & Williams (2000), Williams et al. (2008), Watters et al. (2009), Pfeiffer et al. (2018)

Unio undulata Valenciennes, 1827
Valenciennes, 1827, Receuil Observ. Zool. 2(11-12): 229, pl. 54, figs. 3-3b.
(misidentified reference to Unio undulatus Barnes, 1823)

Unio undulataValenciennes (1827)
Unio plicatusLea (1829)
Unio costatusFerussac (1835)
Margarita (Unio) undulatusLea (1838)
Unio (Theliderma) undulataSwainson (1840)
Margaron (Unio) undulatusLea (1852), Lea (1870)
Unio (Crenodonta) plicatusMörch (1853)
Quadrula (sec. Crenodonta) undulataSimpson (1900)
Megalonaias nervosaWatters et al. (2009)

Unio heros Say, 1829
Say, 1829, New Harm. Dissem. 2(19): 291, sp. 1.
Say, 1858, [in] Binney, Compl. Writings T. Say: 165, 225.

Unio herosSay (1829), Ferussac (1835), Conrad (1840), Hanley (1843), Küster (1855), Reeve (1864), B.H. Wright (1888)
Margarita (Unio) multiplicatusLea (1836), Lea (1838)
Complanaria herosAgassiz (1852)
Margaron (Unio) multiplicatusLea (1852), Lea (1870)
Unio multiplicatusCall (1895)
Quadrula (sec. Crenodonta) herosSimpson (1900), Simpson (1914)
Unio (s.s.) multiplicatusCall (1900)
Quadrula herosOrtmann (1909)
Crenodonta herosOrtmann (1912)
Megalonaias herosUtterback (1915), Ortmann (1923)
Megalonaias giganteaOrtmann & Walker (1922), F.C. Baker (1928), Murray & Leonard (1962), Haas (1969), Burch (1975), R.I. Johnson (1980)
Amblema (Megalonaias) giganteaFrierson (1927), Haas (1930)
Amblema (sec. Megalonaias) herosThiele (1934)
Megalonaias gigantea giganteaHaas (1969)
Megalonaias nervosaOesch (1984), Vidrine (1993), Howells et al. (1996), Parmalee & Bogan (1998), ..., Williams et al. (2014), Pfeiffer et al. (2018), Pfeiffer et al. (2019), Graf & Cummings (2021)

Unio multiplicatus Lea, 1831
Lea, 1831, Trans. Amer. Phil. Soc. 4 [O. 1]: 70, pl. 4, fig. 2.

Unio multiplicatusLea (1831), Ravenel (1834), Jay (1835), B.H. Wright (1888), Singley (1893), Call (1895)
Unio herosFerussac (1835), Conrad (1840), Hanley (1843), Küster (1855), Reeve (1864)
Margarita (Unio) multiplicatusLea (1836), Lea (1838)
Margaron (Unio) multiplicatusLea (1852), Lea (1870)
Unio (Dysnomia) multiplicatusAdams & Adams (1857)
Unio plicatusSowerby (1866)
Quadrula (sec. Crenodonta) herosSimpson (1900), Simpson (1914)
Unio (s.s.) multiplicatusCall (1900)
Quadrula herosOrtmann (1909)
Megalonaias herosUtterback (1915)
Megalonaias giganteaOrtmann & Walker (1922), F.C. Baker (1928), Burch (1975)
Amblema (Megalonaias) giganteaFrierson (1927)
Megalonaias gigantea giganteaHaas (1969)
Megalonaias nervosaOesch (1984), Howells et al. (1996), Parmalee & Bogan (1998), Brim Box & Williams (2000), Williams et al. (2008), Watters et al. (2009), Pfeiffer et al. (2018)

Unio undulatus Say, 1831
‘Barnes’ Say, 1831, Amer. Conch. 2: pl. 16.
(misidentified reference to Unio undulatus Barnes, 1823)

Unio undulatusSay (1831)
Unio herosFerussac (1835), Conrad (1840), Hanley (1843), Küster (1855)
Margarita (Unio) multiplicatusLea (1836), Lea (1838)
Margaron (Unio) multiplicatusLea (1852), Lea (1870)
Unio multiplicatusCall (1895)
Quadrula (sec. Crenodonta) herosSimpson (1900), Simpson (1914)
Megalonaias nervosaParmalee & Bogan (1998)

Plectomerus boykianus Conrad, 1853
‘Lea’ Conrad, 1853, Proc. Acad. Nat. Sci. 6: 260.
(error for Unio boykinianus Lea, 1840)

Plectomerus boykianusConrad (1853)

Unio eightsii Lea, 1860
Lea, 1860, Proc. Acad. Nat. Sci. 12: 306.
Lea, 1860, Jour. Acad. Nat. Sci. 4 [O. 8]: 367 [49], pl. 64, fig. 192.
Type(s): LECTOTYPE USNM_83991, Sabinas R., Nuevo Leon, Mexico.

Unio eightsiiLea (1860), B.H. Wright (1888), Singley (1893)
Margaron (Unio) eightsiiLea (1870)
Unio (Plectomerus) eightsiiFischer & Crosse (1894)
Unio multiplicatusCall (1895)
Quadrula (sec. Crenodonta) herosSimpson (1900), Simpson (1914)
Unio (Crenodonta) digitatusMartens (1900)
Amblema (Megalonaias) giganteaFrierson (1927)
Megalonaias gigantea giganteaHaas (1969)
Megalonaias nervosaHowells et al. (1996), Parmalee & Bogan (1998), R.I. Johnson (1999), Williams et al. (2008), Watters et al. (2009), Pfeiffer et al. (2018)

Unio baykinianus Küster, 1861
‘Lea’ of Authors.
Küster, 1861, Conchyl. Cab. 9(2): 181.
Paetel, 1890, Cat. Conch.-Samml. 3: 145.
(error for Unio boykinianus Lea, 1840)

Unio baykinianusKüster (1861)
Quadrula (sec. Crenodonta) boykinianaSimpson (1900), Simpson (1914)

Unio atrocostatus Reeve, 1864
‘Lea’ Reeve, 1864, Conch. Icon. 16: pl. 4, sp. 13; errata [changed to ‘U. heros, Say’].
(error for Unio heros Say, 1829; misidentified reference to Unio atrocostatus Lea, 1845)

Unio atrocostatusReeve (1864)
Margaron (Unio) multiplicatusLea (1870)
Quadrula (sec. Crenodonta) herosSimpson (1900), Simpson (1914)
Amblema (Megalonaias) giganteaFrierson (1927)
Megalonaias gigantea giganteaHaas (1969)
Megalonaias nervosaParmalee & Bogan (1998), Watters et al. (2009)

Unio atrocostatus Sowerby, 1868
‘Lea’ Sowerby, 1868, Conch. Icon. 16: pl. 77, sp. 404.
(misidentified reference to Unio atrocostatus Lea, 1845)

Unio atrocostatusSowerby (1868)
Quadrula (sec. Crenodonta) undulataSimpson (1900), Simpson (1914)
Amblema (s.s.) plicata-costataFrierson (1927)

Unio eighti Paetel, 1890
‘Lea’ Paetel, 1890, Cat. Conch.-Samml. 3: 151.
(error for Unio eightsii Lea, 1860)

Unio eightiPaetel (1890)
Unio (Plectomerus) eightsiiFischer & Crosse (1894)
Quadrula (sec. Crenodonta) herosSimpson (1900), Simpson (1914)
Megalonaias nervosaParmalee & Bogan (1998), Watters et al. (2009)

Taxonomic History (since 1900)

Quadrula (sec. Crenodonta) undulataSimpson (1900), Simpson (1914)
Quadrula (sec. Crenodonta) herosSimpson (1900), Simpson (1914)
Unio (s.s.) multiplicatusCall (1900)
Quadrula (sec. Crenodonta) boykinianaSimpson (1900), Simpson (1914)
Unio (Crenodonta) digitatusMartens (1900)
Quadrula (sec. Crenodonta) triumphansSimpson (1900), Simpson (1914)
Quadrula triumphansSimpson (1900)
Quadrula herosOrtmann (1909)
Crenodonta herosOrtmann (1912)
Megalonaias herosUtterback (1915), Ortmann (1923)
Truncilla donaciformisOrtmann & Walker (1922)
Megalonaias giganteaOrtmann & Walker (1922), Ortmann (1924), Ortmann (1925), F.C. Baker (1928), ..., Mathiak (1979), Gordon et al. (1979), R.I. Johnson (1980), ITIS (2012)
Megalonaias triumphansOrtmann (1923), Haas (1969)
Lampsilis (Ligumia) nervosaFrierson (1927)
Amblema (Megalonaias) giganteaFrierson (1927), Haas (1930)
Amblema (Megalonaias) gigantea-boykinianaFrierson (1927)
Amblema (s.s.) plicata-costataFrierson (1927)
Amblema (Megalonaias) triumphansFrierson (1927)
Amblema (sec. Megalonaias) herosThiele (1934)
Crenodonta boykinianaClench & Turner (1956)
Ligumia nervosaHaas (1969)
Megalonaias nervosaMorrison (1969), Oesch (1984), Turgeon et al. (1988), Cummings & Mayer (1992), ..., Czaja et al. (2023), Neemuchwala et al. (2023), Hopper et al. (2023), Hauck et al. (2023)
Megalonaias gigantea giganteaHaas (1969)
Megalonaias gigantea boykinianaHaas (1969)
Amblema giganteaDavis & Fuller (1981)
Megalonaias boykinianaDavis (1984), Turgeon et al. (1988), Williams et al. (1993), Rosenberg et al. (1994), Rosenberg et al. (1997), Graf & Cummings (2007), Cummings & Graf (2010), ITIS (2012)
Amblema plicataVidrine (1993)
Tritogonia nervosaITIS (2012)
M. nervosaMarshall et al. (2018)

Page updated: 15:05:22 Wed 04 Dec 2024

 
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