Unio mongolicus Middendorff, 1851
Middendorff, 1851. Reise Nord. Ost. Sibiriens 2(1): 277, pl. 27, figs. 7-8.

Margaritana margaritifera — Simpson (1900), Simpson (1914)
Unio mongolicus — Preston (1912)
Unio (sec. Lymnium) mongolicus — Preston (1915)
Margaritana mongolica — Zhadin (1938)
Unio crassus mongolicus — Haas (1940), Haas (1969), Graf (2007)
Unio douglasiae var. mongolicus — Zhadin (1965)
Middendorffinaia (s.s.) mongolica — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987), Starobogatov et al. (2004), Bogatov (2012), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia (s.s.) mongolicus — Korniushin (1998)
Middendorffinaia mongolica — Kantor & Sysoev (2005), Kantor et al. (2010), Zieritz et al. (2018), Klishko et al. (2019), Lopes-Lima et al. (2020), ... Chen et al. (2023), Dai et al. (2024), Hou et al. (2024), Hou et al. (2025), Hou et al. (2025)
Unio crassus — IUCN (2014), Araujo et al. (2018)
Middendorffinaia mongolica mongolica — Bogatov (2022)

Middendorffinaia maihensis Moskvicheva, 1973
Moskvicheva, 1973. Zool. Zhur. 52(10): 1466, figs. 3 а-б.

Middendorffinaia maihensis — Moskvicheva (1973)
Middendorffinaia (Sujfununio) maihensis — Zatravkin (1983), Zatravkin & Bogatov (1987)
Middendorffinaia (Pseudopotomida) weliczkowskii — Starobogatov et al. (2004), Vinarski & Kantor (2016)
Middendorffinaia weliczkowskii — Kantor & Sysoev (2005)
Inversidens pantoensis — He & Zhuang (2013)
Middendorffinaia (Pseudopotomida) maihensis — Bogatov & Prozorova (2017)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020)

Middendorffinaia (Pseudopotomida) dulkeitiana Moskvicheva & Starobogatov, 1973
Moskvicheva & Starobogatov, 1973. Byull. Mosk. Obshch.. Ispyt. Prir. 78(2): 33, figs. 5г-д.

Middendorffinaia (Pseudopotomida) dulkeitiana — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987), Starobogatov et al. (2004), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia shadini — Martynov & Chernyshev (1992)
Middendorffinaia dulkeitiana — Kantor & Sysoev (2005), Kantor et al. (2010)
Inversidens pantoensis — He & Zhuang (2013)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020), Sayenko et al. (2021)
Middendorffinaia suifunensis [sic] dulkeitiana — Bogatov (2022)

Middendorffinaia (Pseudopotomida) hassanica Moskvicheva & Starobogatov, 1973
Moskvicheva & Starobogatov, 1973. Byull. Mosk. Obshch.. Ispyt. Prir. 78(2): 34, figs. 5з-и.

Middendorffinaia (Pseudopotomida) hassanica — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987)
Middendorffinaia (Pseudopotomida) weliczkowskii — Starobogatov et al. (2004), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia weliczkowskii — Kantor & Sysoev (2005)
Inversidens pantoensis — He & Zhuang (2013)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020)

Middendorffinaia (Pseudopotomida) martensi Moskvicheva & Starobogatov, 1973
Moskvicheva & Starobogatov, 1973. Byull. Mosk. Obshch.. Ispyt. Prir. 78(2): 34, figs. 5к-н.

Middendorffinaia (Pseudopotomida) martensi — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987)
Margaritifera margaritifera — Ziuganov et al. (1994)
Middendorffinaia (Pseudopotomida) shadini — Starobogatov et al. (2004), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia shadini — Kantor & Sysoev (2005), Kantor et al. (2010)
Inversidens pantoensis — He & Zhuang (2013)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020)

Middendorffinaia (Pseudopotomida) shadini Moskvicheva & Starobogatov, 1973
‘Haas’ Zhadin, 1938. Faune USSR Mollusques 4(1): 100, fig. 31 [as ‘Unio continentalis’].
‘Haas’ Zhadin, 1952. Moll. SSSR (46): 299, fig. 263 [as ‘Unio continentalis’].
Moskvicheva & Starobogatov, 1973. Byull. Mosk. Obshch.. Ispyt. Prir. 78(2): 31, figs. 5а-в.

Middendorffinaia (Pseudopotomida) shadini — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987), Starobogatov et al. (2004), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia shadini — Martynov & Chernyshev (1992), Kantor & Sysoev (2005), Kantor et al. (2010), Zieritz et al. (2018)
Inversidens pantoensis — Graf (2007), He & Zhuang (2013)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020)
Middendorffinaia suifunensis [sic] shadini — Bogatov (2022)

Middendorffinaia (Pseudopotomida) weliczkowskii Moskvicheva & Starobogatov, 1973
Moskvicheva & Starobogatov, 1973. Byull. Mosk. Obshch.. Ispyt. Prir. 78(2): 33, figs. 5е-ж.

Middendorffinaia (Pseudopotomida) weliczkowskii — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987), Starobogatov et al. (2004), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia weliczkowskii — Kantor & Sysoev (2005), Kantor et al. (2010)
Inversidens pantoensis — Graf (2007), He & Zhuang (2013)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020)
Middendorffinaia suifunensis [sic] weliczkowskii — Bogatov (2022)

Middendorffinaia (s.s.) ussuriensis Moskvicheva & Starobogatov, 1973
Moskvicheva & Starobogatov, 1973. Byull. Mosk. Obshch.. Ispyt. Prir. 78(2): 28, figs. 3и-л.

Middendorffinaia (s.s.) ussuriensis — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987), Starobogatov et al. (2004), Bogatov (2012), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia ussuriensis — Kantor & Sysoev (2005), Kantor et al. (2010), He & Zhuang (2013)
Unio crassus mongolicus — Graf (2007)
Nodularia douglasiae — Lopes-Lima et al. (2020), Bolotov et al. (2020)
Middendorffinaia mongolica — Sayenko et al. (2021), Liu et al. (2022)
Middendorffinaia mongolica ussuriensis — Bogatov (2022)

Middendorffinaia (Suifununio) sujfunensis Moskvicheva & Starobogatov, 1973
Moskvicheva & Starobogatov, 1973. Byull. Mosk. Obshch.. Ispyt. Prir. 78(2): 30, fig. 4.

Middendorffinaia (Sujfununio) sujfunensis — Moskvicheva & Starobogatov (1973), Zatravkin (1983), Zatravkin & Bogatov (1987)
Middendorffinaia (Pseudopotomida) sujfunensis — Starobogatov et al. (2004), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia sujfunensis — Kantor & Sysoev (2005), Kantor et al. (2010)
Inversidens pantoensis — Graf (2007), He & Zhuang (2013)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020), Sayenko et al. (2021)
Middendorffinaia suifunensis suifunensis [sic] — Bogatov (2022)

Middendorffinaia suifunensis Graf, 2007
‘Moskvicheva & Starobogatov’ of Authors.
Graf, 2007. Proc. Acad. Nat. Sci. 156: 85.
Lopes-Lima et al., 2020. MPE 146: Appendix 1.
Bolotov et al., 2020. Sci. Repts. 10: S32.
Bogatov, 2022. Lg. Bivalve Moll. Russia’s Fresh Waters: 59, 61.
(error for Middendorffinaia (Suifununio) sujfunensis Moskvicheva & Starobogatov, 1973)

Inversidens pantoensis — He & Zhuang (2013)

Middendorffinaia alimovi Bogatov, 2012
Bogatov, 2012. Zool. Zhur. 91(4): 400, figs. 4; 5, 1, 7г.

Middendorffinaia (s.s.) alimovi — Bogatov (2012), Vinarski & Kantor (2016), Bogatov & Prozorova (2017)
Middendorffinaia mongolica — Klishko et al. (2019), Lopes-Lima et al. (2020), Bolotov et al. (2020)
Middendorffinaia mongolica alimovi — Bogatov (2022)

Unio (Nodularia) continentalis Zhadin, 1938
‘Haas’ Zhadin, 1938. Faune USSR Mollusques 4(1): 100, fig. 31.
‘Haas’ Zhadin, 1952. Moll. SSSR (46): 299, fig. 263.
(misidentified reference to Nodularia continentalis Haas, 1910)

Middendorffinaia (Pseudopotomida) shadini — Moskvicheva & Starobogatov (1973), Zatravkin & Bogatov (1987)
Middendorffinaia shadini — Kantor & Sysoev (2005), Kantor et al. (2010)
Middendorffinaia mongolica — Lopes-Lima et al. (2020), Bolotov et al. (2020)