Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Lampsilini

genus Mesonaias Crosse & Fischer, 1894: synonymy

3 Recent freshwater species (3 total species)

Synonymy

Mesonaias Fischer & Crosse, 1894

Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(15): 556.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio explicatus Morelet, 1849 (orig. desig.) = Mesonaias explicata

Taxonomic History (since 1900)

The Taxonomic History lists the ways authors have classified the species currently assigned to Mesonaias, since 1900.

Lampsilis (Proptera) — Simpson (1900), Simpson (1914)
Unio (Lampsilis) — Martens (1900)
Unio (Uniomerus) — Martens (1900)
Unio (Nephronaias) — Martens (1900)
Lampsilis — Ihering (1901), Pilsbry (1904), Pilsbry (1910), R.I. Johnson (1998), Contreras-Arquieta (2000)
Unio — de Gregorio (1914)
Nephronaias — Simpson (1914)
Lampsilis (Cyrtonaias) — Frierson (1927), Haas (1929), Haas (1969)
Elliptio (Sphenonaias) — Frierson (1927)
Proptera — Frierson (1927), Haas (1969)
Lampsilis (Disconaias) — Frierson (1927), Haas (1969)
Lampsilis (sec. Mesonaias) — Thiele (1934)
Lampsilis (Mesonaias) — Haas (1969), Haas (1969)
Nephronaias (Sphenonaias) — Haas (1969)
Cyrtonaias — Burch (1975), Turgeon et al. (1988), Williams et al. (1993), Howells et al. (1996), Turgeon et al. (1998), ... Hopper et al. (2023), Freeman et al. (2025), FMCS (2025), Campbell & Lydeard (2026), Martínez et al. (2026)
Actinonaias — R.I. Johnson (1998), Contreras-Arquieta (2000), Watters et al. (2009)
Mesonaias — Contreras-Arquieta (2000), Cummings et al. (2025), Martínez et al. (2026)
Sphenonaias — Graf & Cummings (2007), Bogan (2010), Pfeiffer et al. (2019), Inoue et al. (2020), Graf & Cummings (2021), Czaja et al. (2023), Freeman et al. (2025), Campbell & Lydeard (2026)
Potamilus — Graf & Cummings (2007), Bogan (2010), Czaja et al. (2023)