Bivalvia | Unionida | Unionoidea | Unionidae | Parreysiinae | Indochinellini
8 Recent freshwater species (8 total species)
(intro'd as sub-gen. of Nodularia Conrad, 1853)
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 820.
Simpson, 1914. Descr. Cat. Naiades: 1016.
Type species: Unio crispisulcatus Benson, 1862 (orig. desig.) = Radiatula crispisulcata
The Taxonomic History lists the ways authors have classified the species currently assigned to Radiatula, since 1900.
Nodularia (sec. Radiatula) — Simpson (1900), Simpson (1914), Preston (1915)
Nodularia (s.s.) — Preston (1912), Preston (1915)
Nodularia (Radiatula) — Preston (1912)
Nodularia (s.s.) (Group of N. cærulea) — Simpson (1914)
Nodularia (s.s.) (Group of N. olivaria) — Simpson (1914)
Indonaia — Annandale & Prashad (1921), Prashad (1922), Haas (1969), Graf & Cummings (2021)
Parreysia (Radiatula) — Thiele (1934), Haas (1969), Subba Rao (1989), Graf & Cummings (2007), Ramakrishna & Dey (2007)
Radiatula — Morrison (1966), Haas (1969), Bolotov et al. (2017), Zieritz et al. (2018), Bolotov et al. (2018), ... Konopleva et al. (2023), Konopleva et al. (2023), Bolotov et al. (2024), Campbell & Lydeard (2026), Konopleva et al. (2026)
Parreysia — Haas (1969), Brandt (1974), Bogan (2010), IUCN (2010)
Parreysia (s.s.) — Subba Rao (1989), Ramakrishna & Dey (2007)
Indonaia (caerulea-group) — Bolotov et al. (2022)