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), ... Czaja et al. (2023), Hopper et al. (2023), Freeman et al. (2025), FMCS (2025), Campbell & Lydeard (2026)
Actinonaias — R.I. Johnson (1998), Contreras-Arquieta (2000), Watters et al. (2009)
Mesonaias — Contreras-Arquieta (2000), Cummings et al. (2025)
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)