Mya anatina Gronovius, 1781
Gronovius, 1781. Zoophylacium Gronovianum: ??.

Mya radiata Gmelin, 1791
Martini & Chemnitz, 1782. Conchyl. Cab. 6: 23, pl. 2, fig. 7 [as ‘Mya pictorum tenuis’].
Gmelin, 1791. Syst. Nat. 1(6): 3220, sp. 9. [in part]

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis radiata — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), F.C. Baker (1928), ... FMCS (2021), Stodola et al. (2021), Hopper et al. (2023), FMCS (2025), Campbell & Lydeard (2026)
Lampsilis (Eurynia) radiata — Simpson (1914)
Lampsilis (Ligumia) radiata — Frierson (1927)
Unio radiatus — Henderson (1935)
Ligumia radiata radiata — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Clarke (1973), Burch (1975), R.I. Johnson (1980), Mackie et al. (1980), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Bogan (2002), Kneeland & Rhymer (2007), ITIS (2012)

Unio luteola Lamarck, 1819
Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 79, sp. 40.

Lampsilis (sec. Eurynia) luteolus — Simpson (1900)
Unio (s.s.) luteolus — Call (1900)
Lampsilis luteola — Ortmann (1909), Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), Utterback (1916), Ortmann (1918), Ortmann (1918), Morrison (1969)
Lampsilis (Eurynia) luteola — Simpson (1914)
Lampsilis luteolus — Vanatta (1915)
Lampsilis siliquoidea — Ortmann & Walker (1922), F.C. Baker (1928), Vidrine (1993), IUCN (2012), Krebs et al. (2013)
Lampsilis (s.s.) cariosa — Frierson (1927)
Lampsilis (Ligumia) fasciata — Frierson (1927)
Lampsilis radiata siliquoidea — Murray & Leonard (1962), Mathiak (1979), R.I. Johnson (1980)
Lampsilis radiata radiata — R.I. Johnson (1969), Clarke (1973), Burch (1975)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata luteola — Oesch (1984), Krebs et al. (2003), Krebs (2004), Watters et al. (2009)
Lampsilis radiata — Strayer & Jirka (1997)
Lampsilis radiate [sic] luteola — Kongim et al. (2015)

Unio lineata Bory de St. Vincent, 1827
Bruguière, 1797. Encycl. Méth. 2: pl. 248, fig. 5 [as Unio sp.].
‘Val.’ Bory de St. Vincent, 1827. Encycl. Méth. 2: 151.

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis (Eurynia) radiata — Simpson (1914)
Lampsilis (Ligumia) radiata — Frierson (1927)
Ligumia radiata radiata — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)

Unio oblongatus Wood, 1828
Wood, 1828. Suppl. Index Testac.: 2 [as ‘Mya oblongata’].
Wood, 1828. Suppl. Index Testac.: 57, pl. 1, sp. 2.
Wood in Hanley, 1856. Index Testac.: 199, pl. 1, fig. 2.

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis (Eurynia) radiata — Simpson (1914)
Lampsilis (Ligumia) radiata — Frierson (1927)
Ligumia radiata radiata — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)

Unio tenebrosus Conrad, 1834
Conrad, 1834. New Fresh-Water Shells: 42, pl. 7, fig. 1.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 258.

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis (Eurynia) radiata — Simpson (1914)
Lampsilis (Ligumia) radiata-tenebrosa — Frierson (1927)
Ligumia radiata tenebrosa — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)

Unio melinus Conrad, 1838
Conrad, 1838. Monogr. Fam. Unionidae 2(11): 101, pl. 56, fig. 1.

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis (Eurynia) radiata — Simpson (1914)
Lampsilis (Ligumia) radiata-mellina [sic] — Frierson (1927)
Ligumia radiata radiata — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)

Unio elongata Goodrich, 1859
Goodrich, 1859. Ill. Nat. Hist. 2: 523, text fig.
(homonym of Unio elongata Lamarck, 1819)

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis (Eurynia) radiata — Simpson (1914)
Lampsilis (Ligumia) radiata — Frierson (1927)
— Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)

Unio obliquiradiatus Reeve, 1865
Reeve, 1865. Conch. Icon. 16: pl. 29, sp. 151.

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis (Eurynia) radiata — Simpson (1914)
Lampsilis (Ligumia) radiata — Frierson (1927)
Ligumia radiata radiata — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)

Unio virginana Reeve, 1865
‘Lamarck’ of Authors.
Reeve, 1865. Conch. Icon. 16: pl. 27, sp. 139.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 536.
(misidentified reference to Unio virginiana Lamarck, 1819)

Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)

Unio radiatoides Lea, 1868
Lea, 1868. Proc. Acad. Nat. Sci. 20: 163.

Unio radiatus — Henderson (1935)

Unio conspicuus Lea, 1872
Lea, 1872. Proc. Acad. Nat. Sci. 24: 156.
Lea, 1874. Jour. Acad. Nat. Sci. 8 [O. 13]: 34 [38], pl. 11, fig. 31.
Type(s): FIGURED SYNTYPE USNM_85056, Yadkin R., near Salisbury, Rowan Co., N. Carolina.

Lampsilis (sec. Eurynia) radiatus var. conspicuus — Simpson (1900)
Lampsilis (Eurynia) radiata var. conspicua — Simpson (1914)
Lampsilis (Ligumia) radiata-tenebrosa — Frierson (1927)
Ligumia radiata tenebrosa — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)
Lampsilis radiata conspicua — Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Bogan (2002), ITIS (2012)
Lampsilis radiata — Williams et al. (2017)

Unio borealis Gray, 1882
Gray, 1882. Trans. Ottawa Field Nat. Club 1(3): 53, pl.
Type(s): LECTOTYPE MCZ_51470 (by R.I. Johnson, 1956: 108), Ottawa River, Duck Island, Ontario, Canada.

Lampsilis (sec. Eurynia) borealis — Simpson (1900)
Lampsilis (Eurynia) borealis — Simpson (1914)
Lampsilis (Ligumia) borealis — Frierson (1927)
Lampsilis borealis — F.C. Baker (1928)
Ligumia borealis — Haas (1969)
Lampsilis radiata siliquoidea — Burch (1975)
Lampsilis radiata — Strayer & Jirka (1997)

Unio mellinus Paetel, 1890
‘Conrad’ of Authors.
Paetel, 1890. Cat. Conch.-Samml. 3: 159.
Frierson, 1927. Check List N. Amer. Naiades: 72, sp. 316a.
(error for Unio melinus Conrad, 1838)

Lampsilis (sec. Eurynia) radiatus — Simpson (1900)
Lampsilis (Eurynia) radiata — Simpson (1914)

Unio muhlfeldianus var. plurimaffinis de Gregorio, 1914
de Gregorio, 1914. Il Nat. Siciliano 2: 39, pl. 3, figs. 2a-d.
(intro'd as intra-sp. of Unio muhlfeldianus Lea, 1838)

Unio muhlfeldianus var. plurimaffinis — de Gregorio (1914)
Ligumia radiata radiata — Haas (1969)

Lampsilis radiata oneidensis F.C. Baker, 1916
F.C. Baker, 1916. Nautilus 30: 74, pl. 2, figs. 1-4.
F.C. Baker, 1918. Techn. Pub. Syracuse Univ., New York (9): 247, text fig.
(intro'd as intra-sp. of Mya radiata Gmelin, 1791)
Type(s): SYNTYPES ANSP_114854, Lower South Bay, Oneida Lake, N.Y.

Lampsilis (Ligumia) radiata-oneidensis — Frierson (1927)
Ligumia radiata radiata — Haas (1969)
Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)
Lampsilis radiata — Strayer & Jirka (1997)

Lampsilis (s.s.) fullerkati R.I. Johnson, 1984
Kat, 1983. J. Moll. Studies 49: 133, fig. 1B [as ‘Lampsilis sp.’].
R.I. Johnson, 1984. Occ. Pap. Moll. 4(63): 307, pl. 42, figs. 1-3.
Type(s): HOLOTYPE MCZ_294576, West shore of Lake Waccamaw, Waccamaw, Columbia Co., North Carolina.

Lampsilis sp. — Kat (1983)
Lampsilis fullerkati — Turgeon et al. (1988), Williams et al. (1993), IUCN (1996), Turgeon et al. (1998), Bogan (2002), Graf & Cummings (2007), Bogan (2010), Cummings & Graf (2010), ITIS (2012), Haag (2012)
Lampsilis radiata — Williams et al. (2017), Graf & Cummings (2021), Porto-Hannes et al. (2021)

Lampsilis radiata champlainensis of Authors, unknown year
Pilsbry, in coll. ANSP of Authors.
(intro'd as intra-sp. of Mya radiata Gmelin, 1791)
Type(s): MANUSCRIPT NAME ANSP_128409, head of Willsboro Bay, L. Champlain, Essex Co., N.Y.

Mya pictorum tenuis Martini & Chemnitz, 1782
Martini & Chemnitz, 1782. Conchyl. Cab. 6: 23, pl. 2, fig. 7. [pre-linnaean]

Mya elongata Reeve, 1865
‘Wood’ Reeve, 1865. Conch. Icon. 16: pl. 137, sp. 139.
(error for Unio oblongatus Wood, 1828)

Unio virginea Frierson, 1927
‘Lamarck’ Frierson, 1927. Check List N. Amer. Naiades: 72.
(error for Unio virginana Reeve, 1865)

Lampsilis (s.s.) radiata radiata — R.I. Johnson (1970)
Lampsilis radiata radiata — Burch (1975)