Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Lampsilini
3 Recent freshwater species (3 total species)
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(15): 556.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio discus Lea, 1838 (orig. desig.) = Disconaias disca
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 700.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio lapidosus ‘Villa in sched.’ Kobelt, 1893 (orig. desig.) = Disconaias disca
The Taxonomic History lists the ways authors have classified the species currently assigned to Disconaias, since 1900.
Unio (sec. Elliptio) — Simpson (1900), Simpson (1914)
Unio (Lampsilis) — Martens (1900)
Unio (sec. Lapidosus) — Simpson (1900)
Lampsilis — Pilsbry (1910), Simpson (1914)
Paraptera — Ortmann (1912)
Lampsilis (Proptera) — Simpson (1914)
Unio — Simpson (1914)
Lampsilis (Disconaias) — Frierson (1927), Haas (1929), Haas (1940), Haas (1969), Haas (1969)
Lampsilis (Actinonaias) — Frierson (1927)
Lampsilis (sec. Disconaias) — Thiele (1934)
Actinonaias — Haas (1969), Graf & Cummings (2007), Bogan (2010), Bogan (2013), Graf & Cummings (2021), Czaja et al. (2023)
Disconaias — Turgeon et al. (1988), Williams et al. (1993), IUCN (1996), R.I. Johnson (1998), Turgeon et al. (1998), ... Graf & Cummings (2021), FMCS (2021), Czaja et al. (2023), Cummings et al. (2025), FMCS (2025)
Potamilus — Howells et al. (1996), Haag (2012)
Potamilis [sic] — Contreras-Arquieta (2000)