Alasmidonta marginata Say, 1818
Say, 1818, Jour. Acad. Nat. Sci. 1(11): 459.
Say, 1819, Nich. Encyc. 4: sp. 1.
Say, 1858, [in] Binney, Compl. Writings T. Say: 62.

Alasmidonta marginata — Say (1818), Say (1819), Rafinesque (1820), Menke (1830), Stimpson (1851), Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), Utterback (1915), Heard (1975), Mathiak (1979), Gordon et al. (1979), R.I. Johnson (1980), Oesch (1984), Turgeon et al. (1988), Cummings & Mayer (1992), Williams et al. (1993), Vidrine (1993), Strayer & Jirka (1997), Parmalee & Bogan (1998), Turgeon et al. (1998), Lydeard et al. (1999), Graf & Ó Foighil (2000), Graf (2002), Graf (2002), Cicerello & Schuster (2003), Sietman (2003), Graf & Cummings (2006), Williams et al. (2008), Chong et al. (2008), Watters et al. (2009), Hoeh et al. (2009), Jadhav & Jamkhedkar (2009), Cummings & Graf (2010), Bogan (2010), Boyer et al. (2011), Breton et al. (2011), Haag (2012), McMurray et al. (2012), ITIS (2012), Sousa et al. (2014), Inoue et al. (2014), Kongim et al. (2015), Jones (2015), Lopes-Lima et al. (2017), Bolotov et al. (2017), Bolotov et al. (2017), Williams et al. (2017), IUCN (2017), Chase et al. (2018), Inoue et al. (2018), Bolotov et al. (2018), Wu et al. (2018), Huang et al. (2019), Klymus et al. (2020), Lopes-Lima et al. (2020), Graf & Cummings (2021)
Anodonta marginata — Say (1819)
Lasmigona marginata — Rafinesque (1831)
Alasmodonta marginata — Ravenel (1834), Ferussac (1835), Linsley (1845), Conrad (1853), Pilsbry & Rhoads (1896)
Alasmadonta marginata — Jay (1835)
Margarita (Margaritana) marginata — Lea (1836)
Unio marginata — Hanley (1843)
Margaron (Margaritana) marginata — Lea (1852), Lea (1870)
Unio (Alasmodonta (s.s.)) marginatus — Mörch (1853)
Baphia (Complanaria) marginata — Adams & Adams (1857)
Margaritana marginata — Küster (1862), Lewis (1871)
Unio marginatus — Sowerby (1866)
Alasmidonta (Rugifera) marginata — Simpson (1900), Ortmann (1909), Simpson (1914)
Unio (Margaritana) marginata — Call (1900)
Alasmidonta (Decurambis) marginata — Ortmann (1918), Ortmann & Walker (1922), Ortmann (1924), Ortmann (1925), F.C. Baker (1928), Haas (1969), Haas (1969), R.I. Johnson (1970), Clarke (1981), Graf & Cummings (2007)
Decurambis marginata — Frierson (1927)
Alasmidonta (s.s.) marginata — Burch (1975)

Unio rugulosus Wood, 1828
Wood, 1828, Suppl. Index Testac.: 3 [as ‘Mya rugulosa’]. [nomen nudum]
Wood, 1828, Suppl. Index Testac.: 57, pl. 1, sp. 7.

Unio rugulosus — Wood (1828)
Alasmodonta marginata — Ferussac (1835), Conrad (1853)
Margarita (Margaritana) marginata — Lea (1836)
Unio marginata — Hanley (1843)
Margaron (Margaritana) marginata — Lea (1852), Lea (1870)
Unio (Alasmodonta (s.s.)) marginatus — Mörch (1853)
Margaritana marginata — Küster (1862)
Unio marginatus — Sowerby (1866)
Alasmidonta (Rugifera) marginata — Simpson (1900)
Alasmidonta (Rugifera) varicosa — Simpson (1914)
Alasmidonta (Decurambis) varicosa — R.I. Johnson (1970)
Alasmidonta (s.s.) varicosa — Burch (1975)
Alasmidonta (Decurambis) marginata — Clarke (1981)
Alasmidonta marginata — Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009)

Decurambis literata Rafinesque, 1831
Rafinesque, 1831, Continuation: 5. [nomen nudum]
Rafinesque, 1864, [in] Binney & Tryon, reprint: 80.
(intro'd as syn of Decurambis scriptum Rafinesque, 1831)

Decurambis literata — Rafinesque (1831)
Decurambis scriptum — Rafinesque (1831)

Decurambis scriptum Rafinesque, 1831
Rafinesque, 1831, Continuation: 5.
Rafinesque, 1864, [in] Binney & Tryon, reprint: 80.

Decurambis scriptum — Rafinesque (1831)
Alasmodonta marginata — Ferussac (1835)
Alasmidonta scriptum — Simpson (1900), Simpson (1914)
Alasmidonta (Decurambis) marginata — Ortmann & Walker (1922), F.C. Baker (1928), Haas (1969), Haas (1969), Clarke (1981), Graf & Cummings (2007)
Decurambis marginata — Frierson (1927)
Alasmidonta (s.s.) marginata — Burch (1975)
Alasmidonta marginata — Williams et al. (2008), Watters et al. (2009)

Alasmodonta truncata Lea, 1836
‘Say, in lit.’ of Authors.
Lea, 1836, Synopsis Fam. Naiades: 44.
Lea, 1838, Synopsis Fam. Naiades: 135.
Agassiz, 1852, Arch. Naturg. 18(1): 46.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 262.
(intro'd as syn of Alasmidonta marginata Say, 1818)

Alasmodonta truncata — Lea (1836)
Margarita (Margaritana) marginata — Lea (1836)
Margaron (Margaritana) marginata — Lea (1852), Lea (1870)
Alasmodonta marginata — Conrad (1853)
Alasmidonta (Rugifera) truncata — Simpson (1900)
Alasmidonta (Rugifera) marginata — Simpson (1914)
Decurambis marginata — Frierson (1927)
Alasmidonta (Decurambis) marginata — Haas (1969)
Alasmidonta marginata — Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009)

Mya regulosa Lea, 1836
‘Wood’ Lea, 1836, Synopsis Fam. Naiades: 44.
‘Wood’ Lea, 1852, Synopsis Fam. Naiades: 42.
‘Wood’ Lea, 1870, Synopsis Fam. Naiades: 67.
(error for Unio rugulosus Wood, 1828)

Mya regulosa — Lea (1836)

Margaritana marginata Küster, 1862
‘Say’ of Authors.
Küster, 1862, Conchyl. Cab. 9(2): 297, pl. 99, fig. 3.
Sowerby, 1866, Conch. Icon. 16: pl. 51, sp. 267.
(reference to Alasmidonta marginata Say, 1818)

Margaritana marginata — Küster (1862)
Margaron (Margaritana) marginata — Lea (1870)
Alasmidonta (Rugifera) truncata — Simpson (1900)
Alasmidonta (Rugifera) marginata — Simpson (1914)
Alasmidonta marginata — Watters et al. (2009)

Margaritana marginata var. truncata B.H. Wright, 1898
B.H. Wright, 1898, Nautilus 11: 124.
(intro'd as intra-sp. of Alasmidonta marginata Say, 1818)
Type(s): LECTOTYPE USNM_150545, Clinch R., Va.

Margaritana marginata var. truncata — B.H. Wright (1898)
Alasmidonta (Rugifera) truncata — Simpson (1900)
Alasmidonta marginata — Ortmann (1909), R.I. Johnson (1980), Strayer & Jirka (1997), Watters et al. (2009)
Alasmidonta (Rugifera) marginata — Ortmann (1909)
Alasmidonta (Decurambis) marginata truncata — F.C. Baker (1928)
Alasmidonta (Decurambis) marginata — Clarke (1981)

Unio calceolus f.a sciotincola de Gregorio, 1914
de Gregorio, 1914, Il Nat. Siciliano 2: 54, pl. 9, figs. 3a-d.
(intro'd as intra-sp. of Unio calceolus Lea, 1828)

Unio calceolus f.a sciotincola — de Gregorio (1914)
Alasmidonta marginata — Watters et al. (2009)

Alasmidonta (Decurambis) marginata susquehannae Ortmann, 1919
Ortmann, 1919, Mem. Carnegie Mus. 8(1): 187, pl. 12, fig. 4.
(intro'd as intra-sp. of Alasmidonta marginata Say, 1818)
Type(s): LECTOTYPE CM_61.4679, Susquehanna River, Selins Grove, Snyder County, Pennsylvania.

Alasmidonta (Decurambis) marginata susquehannae — Ortmann (1919)
Decurambis marginata — Frierson (1927)
Alasmidonta (Decurambis) marginata — Haas (1969), Clarke (1981)
Alasmidonta (s.s.) marginata — Burch (1975)
Alasmidonta marginata — Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009)

Alasmidonta (Decurambis) marginata variabilis F.C. Baker, 1928
F.C. Baker, 1928, Bull. Wisconsin Geol. Nat. Hist. Survey 70(2): 194, pl. 69, figs. 4-9.
(intro'd as intra-sp. of Alasmidonta marginata Say, 1818)
Type(s): LECTOTYPE UMMZ_209183, Red Cedar R., Chetek, Wis.

Alasmidonta (Decurambis) marginata variabilis — F.C. Baker (1928)
Alasmidonta (Decurambis) marginata variabilis — F.C. Baker (1928)
Alasmidonta marginata — R.I. Johnson (1980), Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009)
Alasmidonta (Decurambis) marginata — Clarke (1981)