Bivalvia | Unionida | Unionoidea | Unionidae | Gonideinae | Rectidentini | Rectidentina
10 Recent freshwater species (10 total species)
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 267.
Type species: Unio delphinus Gruner, 1841 (monotypy) = Hyriopsis bialata
The Taxonomic History lists the ways authors have classified the species currently assigned to Hyriopsis, since 1900.
Hyriopsis (s.s.) — Simpson (1900), Simpson (1914), Brandt (1974), Habe (1977), Soliman et al. (2016)
Unio — Dautzenberg & Fischer (1905)
Hyriopsis — Haas (1910), Preston (1912), Ortmann (1916), Haas (1924), Thiele (1934), ... Dai et al. (2025), Dai et al. (2025), Chen et al. (2025), Chen et al. (2025), Campbell & Lydeard (2026)
Hyriopsis (Limnoscapha) — Brandt (1974), Kittivorachate & Yangyuen (2004), Deein et al. (2004)
H. — Konopleva et al. (2019)