Potomida Swainson, 1840
Swainson, 1840, Treat. Malacol.: 265, 268, 272-275, 280-281, 285, 289-290, 379.
Swainson, 1840, Treat. Malacol.: 275 [as ‘Potomidea’].
(intro'd as sub-gen. of Mysca Turton, 1822; renamed Potamida Agassiz, 1846)
Type species: Mysca (Potomida) corrugata Swainson, 1840 (orig. desig.) = Potomida littoralis

Potomidea Swainson, 1840
Swainson, 1840, Treat. Malacol.: 275.
(error for Potomida Swainson, 1840)

Potamida Agassiz, 1846
Agassiz, 1846, Nomencl. Zool. Index Univ.: 306.
Herrmannsen, 1847, Ind. Gener. Malacol. 2: 329.
Thiele, 1934, Handb. Syst. Weichtierk. 3: 816 [1245].
(homonym of Brongniart, 1810 [Gastro.]; new name for Potomida Swainson, 1840)

Rhomboidiana Locard, 1889
‘Bourguignat MS’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 18 [124].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio rhomboideus Moquin-Tandon, 1855 (orig. desig.) = Potomida littoralis

Simonisiana Locard, 1889
‘Bourguignat MS’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 20 [126].
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio simonis Tristram, 1865 (orig. desig.) = Potomida semirugata

Rhomboideana Fagot, 1892
Fagot, 1892, Bull. Soc. Ramond 27: 37.
Caziot, 1907, Bull. Soc. Sci. Hist. Nat. Yonne 60: 276.
(error for Rhomboidiana Locard, 1889)

Rhamboideana Fagot, 1893
Fagot, 1893, Bull. Soc. Ramond 28: 258.
(error for Rhomboidiana Locard, 1889)

Subreniformiana Fagot, 1893
Fagot, 1893, Bull. Soc. Ramond 28: 258. [nomen nudum]
(intro'd as sub-gen. of Unio Retzius, 1788)

Iridea Sabba Stefanescu, 1896
Sabba Stefanescu, 1896, Mém. Soc. Géol. France 15: 35.
(homonym of Swainson, 1840; renamed Cuneopsidea Wenz, 1928)
Type species: Unio sculptus Brusina, 1874 (original designation) = Potomida sculpta

Psilunio Sabba Stefanescu, 1896
Sabba Stefanescu, 1896, Mém. Soc. Géol. France 15: 44.
Type species: Unio littoralis Cuvier, 1798 (sub. desig. by Thiele, 1934: 818) = Potomida littoralis

Rytia Sabba Stefanescu, 1896
Sabba Stefanescu, 1896, Mém. Soc. Géol. France 15: 41.
(homonym of Hübner, 1823 [Lepidopt.]; renamed Sabbaia Cossmann, 1897)
Type species: Unio brandzae Sabba Stefanescu, 1896 (original designation) = Potomida brandzae

Sabbaia Cossmann, 1897
Cossmann, 1897, Rev. Crit. Paléozool. 1: 156.
(new name for Rytia Sabba Stefanescu, 1896)

Rhombunio Germain, 1911
Germain, 1911, Bull. Mus. Hist. Nat. 17: 67.
(intro'd as sub-gen. of Leguminaia Conrad, 1865)
Type species: Unio rothi Bourguignat, 1863 (sub. desig. by Haas, 1969: 271) = Potomida semirugata

Migranaja Hannibal, 1912
Hannibal, 1912, Proc. Malac. Soc. London 10(2): 124.
Type species: Unio littoralis Cuvier, 1798 (orig. desig.) = Potomida littoralis

Cuneopsidea Wenz, 1928
Wenz, 1928, Arch. Moll. 60: 270.
(new name for Iridea Sabba Stefanescu, 1896)

Wenziella Modell, 1959
Modell, 1959, Geol. Jhrb. 75: 235.
Modell, 1964, Arch. Moll. 93: 120.
Type species: Unio vukotinovici Hoernes, 1865 () = Potomida vukotinovici

Migranaia Haas, 1969
‘Hannibal’ of Authors.
Haas, 1969, Das Tierreich 88: 271.
Haas, 1969, Treatise on Invert. Paleo: N441.
Bank et al., 2001, Heldia 4(1/2): 113.
(error for Migranaja Hannibal, 1912)

Rhombeidiana Cox et al., 1969
‘Locard’ of Authors.
Cox et al., 1969, Treatise on Invert. Paleo 2: N862.
Millard, 2001, Class. Moll. (3): 1077.
(error for Rhomboidiana Locard, 1889)

Cyclopotomida Starobogatov, 1970
Starobogatov, 1970, Fauna Moll. Continent.: 65, 284.
(intro'd as sub-gen. of Psilunio Sabba Stefanescu, 1896)
Type species: Unio munieri Sabba Stefanescu, 1896 (orig. desig.) = Potomida munieri

Uralinaia Starobogatov, 1970
Starobogatov, 1970, Fauna Moll. Continent.: 66, 284.
(intro'd as sub-gen. of Cuneopsidea Wenz, 1928)
Type species: Unio janschini Bogatschev, 1961 (orig. desig.) = Potomida janschini

Misgranaja Daget, 1998
‘Hannibal’ Daget, 1998, Cat. Bivalves Africains: 84.
(error for Migranaja Hannibal, 1912)

Taxonomic History (since 1900)

Unio (sec. Lymnium) — Simpson (1900), Simpson (1914)
Parreysia (s.s.) — Simpson (1900), Simpson (1914), Preston (1915)
Unio — Kobelt (1903), Rochebrune (1903), Pallary (1921), Daget (1998)
Unio (Rhomboïdiana) — Germain (1904)
Unio (Groupe Rhomboïdeana) — Caziot (1907)
Leguminaia (Rhombunio) — Germain (1911)
Migranaja — Hannibal (1912)
— Frierson (1913), Simpson (1914), Haas (1936), Pallary (1939), Modell (1964), Haas (1969), Daget (1998)
Unio (Rhombunio) — Prashad (1919)
Rhombunio — Haas (1924)
Psilunio — Modell (1931), Germain (1931), Thiele (1934), Zhadin (1938), ..., Giribet & Wheeler (2002), Giribet & Distel (2003), Campbell et al. (2005), Jeffrey et al. (2016)
Unio (Psilunio) — Pallary (1939)
Unio (Limnium) [sic] — Pallary (1939)
Potomida — Ellis (1946), Haas (1969), Schütt (1983), Schütt (1988), ..., Dai et al. (2024), Jeratthitikul et al. (2024), Wu et al. (2024), Dai et al. (2024)
Caelatura [sic] (s.s.) — Haas (1969)
Potomida (s.s.) — Haas (1969)
Potomida (Cuneopsidea) — Haas (1969)
Psilunio (Cyclopotomida) — Starobogatov (1970)
Cuneopsidea (Uralinaia) — Starobogatov (1970)
Potamida [sic] — Bába (2000)