Nodularia Conrad, 1853
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 267.
(renamed Nodularidia Cockerell, 1901)
Type species: Unio douglasiae Griffith & Pidgeon, 1833 (orig. desig.) = Nodularia douglasiae

Nodularidia Cockerell, 1901
Cockerell, 1901, Science 13: 984.
(new name for Nodularia Conrad, 1853)

Oxynaia Haas, 1911
Haas, 1911, Conch. Cab. 9 (pt. 2, h. 43): pls. 14-16.
Haas, 1913, Conch. Cab. 9 (pt. 2, h. 47): 152.
Haas, 1913, Nachr. Bl. Dtsch. Malak. Ges. 45: 34.
Type species: Unio jourdyi Morlet, 1886 (orig. desig.) = Nodularia douglasiae

Amurunio Zatravkin & Bogatov, 1987
Zatravkin & Bogatov, 1987, Biv. Far East: 60.
(intro'd as sub-gen. of Nodularia Conrad, 1853)
Type species: Nodularia lebedevi Zatravkin & Starobogatov, 1984 (orig. desig.) = Nodularia douglasiae

Magadaninaia Martynov & Chernyshev, 1992
Martynov & Chernyshev, 1992, Zool. Zhur. 71: 19.
(intro'd as sub-gen. of Nodularia Conrad, 1853)
Type species: Nodularia (Magadaninaia) extremalis Martynov & Chernyshev, 1992 (orig. desig.) = Nodularia douglasiae

Taxonomic History (since 1900)

Nodularia (s.s.) — Simpson (1900), Haas (1911), Haas (1911), Preston (1912), Simpson (1914), Haas (1924), Zatravkin & Bogatov (1987), Korniushin (1998), Starobogatov et al. (2004), Bogatov (2012)
— Simpson (1900), Pilsbry & Bequaert (1927), Haas (1936), Haas (1969), Petit & Coan (2008)
Unio (Nodularia) — Martens (1905), Dautzenberg & Fischer (1908), Zhadin (1938)
Unio — Dautzenberg & Fischer (1905), Dautzenberg & Fischer (1905), de Gregorio (1914), Simpson (1914), ..., Wang et al. (2018), Aunins et al. (2018), Wang et al. (2018), Araujo et al. (2018)
Nodularia — Haas (1910), Simpson (1914), Haas (1920), Moskvicheva (1973), ..., Hou et al. (2024), Hou et al. (2025), Hou et al. (2025), Dai et al. (2025)
Nodularia (sec. Scabies) — Haas (1911)
Oxynaia — Haas (1913), Haas (1924), Prashad (1932), Thiele (1934), ..., IUCN (2011), IUCN (2012), Do et al. (2018), Zieritz et al. (2018)
Nodularia (Scabies) — Haas (1924)
Lymnium — Kira (1954)
Scabies — Haas (1969), Brandt (1974), Hu (2005), Graf & Cummings (2007), Bogan (2010), IUCN (2011), He & Zhuang (2013), WoRMS (2017), Graf & Cummings (2021)
Middendorffinaia (s.s.) — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987), Starobogatov et al. (2004), Bogatov (2012), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia (Sujfununio) — Moskvicheva & Starobogatov (1973)
Nodularia (Amurunio) — Zatravkin & Bogatov (1987), Korniushin (1998), Starobogatov et al. (2004), Klishko et al. (2018)
Nodularia (Magadaninaia) — Martynov & Chernyshev (1992), Starobogatov et al. (2004)
Middendorffinaia — Kantor & Sysoev (2005), Kantor et al. (2010), Klishko et al. (2019), Bogatov (2022)
Pseudobaphia — Prozorova et al. (2005)
Acuticosta — He & Zhuang (2013), Zieritz et al. (2018), Liu et al. (2020)
Nodularidia — He & Zhuang (2013)
Ptychorhynchus — He & Zhuang (2013), Zieritz et al. (2018), Graf & Cummings (2021)