Unio tenuis Griffith & Pidgeon, 1833
Griffith & Pidgeon, 1833. [in] Cuvier, Animal Kingdom 12(38): pl. 24, fig. 2.
‘Gray’ Griffith & Pidgeon, 1834. [in] Cuvier, Animal Kingdom 12(39-40): 595 [as ‘Anodon tenuis’], 601.

Cristaria (Pletholophus) discoidea — Simpson (1900), Simpson (1914)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
— Petit & Coan (2008)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013), Kano et al. (2019), Hata et al. (2022)
Pletholophus tenuis — Lopes-Lima et al. (2017), Bolotov et al. (2017), Bolotov et al. (2017), Sano et al. (2017), Zieritz et al. (2018), ... Chen et al. (2023), Dai et al. (2024), Xiang et al. (2025), Dai et al. (2025), Wu et al. (2025)
Sinanodonta tenuis — Bogatov & Prozorova (2017)

Symphynota discoidea Lea, 1834
Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 75 [187], pl. 11, fig. 33.
Type(s): HOLOTYPE USNM_86358, China.

Cristaria (Pletholophus) discoidea — Simpson (1900), Simpson (1914), Haas (1969), Heard (1977)
— de Gregorio (1914)
Cristaria (sec. Pletholophus) discoidea — Thiele (1934)
Pletholophus discoideus discoideus — Modell (1945)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Pletholophus discoidea — Habe (1977)
Pletholophus discoideus — Dang et al. (1980)
Cristaria discoidea — Wu (1982), Sayenko et al. (2005), Graf (2007), Graf & Cummings (2007), Bogan (2010)
Pletolophus [sic] sp. — Prozorova et al. (2005)
Cristaria discoides [sic] — Hu (2005), Xiong et al. (2012)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)
Pletholophus tenuis — Do et al. (2018), Lopes-Lima et al. (2020), Liu et al. (2022), Dai et al. (2024)

Anodonta chinensis Küster, 1853
‘Philippi’ Küster, 1853. Conch. Cab. Anodonta: 51, pl. 12, fig. 3.

Dalliella purpurea — Simpson (1900), Preston (1912)
Cristaria (Pletholophus) discoidea — Simpson (1900), Simpson (1914)
Simpsonella purpurea — Simpson (1914)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Pletholophus discoidea — Habe (1977)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)

Unio swinhoei H. Adams, 1866
H. Adams, 1866. Proc. Zool. Soc. London 1866: 319.
H. Adams, 1866. Proc. Zool. Soc. London 1866: 446 [as ‘Anodonta’].
Type(s): SYNTYPES BMNH_78-1-28-200, Formosa.

Cristaria (Pletholophus) swinhoei — Simpson (1900), Preston (1912), Simpson (1914)
Anodonta lucida — Dautzenberg & Fischer (1905)
Unio swinhoei — Simpson (1914)
Pletholophus discoideus swinhoei — Modell (1945)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Pletholophus discoidea — Habe (1977)
Pletholophus swinhoei — Dang et al. (1980)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)
Pletholophus tenuis — Do et al. (2018), Dai et al. (2024)

Unio swinhoei Sowerby, 1866
‘Reeve’ Sowerby, 1866. Conch. Icon. 16: pl. 42, sp. 232.
‘H. Adams’ Sowerby, 1870. Conch. Icon. 17: pl. 27, sp. 108.
Type(s): HOLOTYPE BMNH_1968653, Formosa.

Cristaria (Pletholophus) swinhoei — Simpson (1900), Preston (1912), Simpson (1914)
Unio swinhoei — Simpson (1914)
Cristaria (Pletholophus) discoidea sautteri — Kuroda (1941)
Cristaria tenuis — He & Zhuang (2013)

Anodonta gruneriana Clessin, 1876
Clessin, 1876. Conchyl. Cab. 9(1): 172, pl. 56, figs. 3-4.

Cristaria (Pletholophus) discoidea — Simpson (1900), Simpson (1914)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)

Dipsas parvulus Heude, 1878
Heude, 1878. Conch. Fluv. Nanking (4): pl. 32, fig. 65 [64 on plate].

Cristaria (Pletholophus) parvula — Simpson (1900), Simpson (1914)
Cristaria parvula — Martens (1905)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)

Dipsas gentilianus Heude, 1881
Heude, 1881. Conch. Fluv. Nanking (7): pl. 53, fig. 98.

Cristaria (Pletholophus) gentiliana — Simpson (1900), Simpson (1914)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)

Cristaria inangulata Haas, 1910
Haas, 1910. Ann. Mag. Nat. Hist. 6: 499.
Type(s): TYPE SMF_3665, Tonkin.

Cristaria (Pletholophus) inangulata — Simpson (1914)
Pletholophus discoideus inangulatus — Modell (1945)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Pletholophus inangulata — Dang et al. (1980)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)
Pletholophus tenuis — Do et al. (2018), Dai et al. (2024)

Cristaria discoidea sautteri Haas, 1910
Haas, 1910. Ann. Mag. Nat. Hist. 6: 499.
Type(s): TYPE SMF_3668, Candidins See, Formosa.

Cristaria (Pletholophus) discoidea var. sautteri — Simpson (1914)
Cristaria (Pletholophus) discoidea sautteri — Kuroda (1941)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Pletholophus discoidea — Habe (1977)
Cristaria tenuis — He & Zhuang (2013)

Unio magnificus Griffith & Pidgeon, 1833
Griffith & Pidgeon, 1833. [in] Cuvier, Animal Kingdom 12(38): pl. 24, fig. 2 [as ‘Unio tenuis’].
‘Lea’ Sowerby, 1867. Conch. Icon. 16: pl. 57, sp. 289.

Cristaria (Pletholophus) discoidea — Simpson (1900), Simpson (1914)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)

Cristaria discoidea sauteri Habe, 1977
‘Haas’ Habe, 1977. Mollusc. Japan: 117.

Cristaria discoides Hu, 2005
Hu, 2005. Chinese J. Zool. 40: [4], table 1.
Xiong et al., 2012. Chinese J. Ocean. Limn. 30: 128.

Pletholophus holinghensis Bogan et al., 2023
Bogan et al., 2023. Diversity 15(6), 710: fig. 5.

Pletholophus honglinhensis Bogan et al., 2023
Bogan et al., 2023. Diversity 15(6), 710: Table S2.

Pletholophus tenuis — Wu et al. (2025)