Unio nipponensis Martens, 1877
Martens, 1877. S.-Ber. Ges. Naturf. Freunde zu Berlin 1877: 119.
Martens, 1905. Zool. Jb., Jena, Suppl. 8: 58.
Type(s): SYNTYPES ZMB_28142, Mukosima, Tokio, Japan.

Nodularia (s.s.) douglasiae var. nipponensis — Simpson (1900), Simpson (1914)
Unio (Nodularia) nipponensis — Martens (1905)
Nodularia (s.s.) douglasiae nipponensis — Haas (1911)
Lymnium douglasiae nipponensis — Kira (1954)
Unio douglasiae nipponensis — Kira (1959), Haas (1969), Kondo (1997), Kondo (2008)
Unio douglasisae nipponensis — Kuroda (1963)
Unio douglasiae — Habe (1977), Habe (1991)
Nodularidia douglasiae — He & Zhuang (2013)
Nodularia douglasiae nipponensis — Sano et al. (2017), Kano et al. (2019)
Nodularia nipponensis — Liu et al. (2017), Klishko et al. (2018), Lopes-Lima et al. (2020), Choi et al. (2020), Sayenko et al. (2021), ... Dai et al. (2024), Wu et al. (2024), Hou et al. (2024), Hou et al. (2025), Hou et al. (2025)

Nodularia douglasiae biwae Sano et al., 2017
‘Kobelt’ of Authors.
Sano et al., 2017. J. Wat. Res. Prot. 9: Table 2.
(misidentified reference to Unio biwae Kobelt, 1879)

Nodularia douglasiae Fukata & Iigo, 2019
‘Griffith & Pidgeon’ of Authors.
Fukata & Iigo, 2019. mtDNA B 4(2): 3488. [in part]
Sano et al., 2020. Plankton Benthos Res. 15(2): Table 1. [in part]
Choi et al., 2020. Sci. Repts. 10: 6, fig. 3A [as ‘Clade B’]. [in part]
Kim et al., 2021. mtDNA B 6(1): 80. [in part]
Pavan-Kumar et al., 2022. Mol. Biol. Rep. 49: Table S1.
Dai et al., 2024. Invert. Syst. 38(6): Table S1. [in part]
(misidentified reference to Unio douglasiae Griffith & Pidgeon, 1833)

Nodularia douglasiae — Wu et al. (2024)