species Pletholophus tenuis (Griffith & Pidgeon, 1833): synonymy

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)
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), Zieritz et al. (2018), Do et al. (2018), ... Chen et al. (2025), Nagel (2025), Dai et al. (2026), Chen et al. (2026), Campbell & Lydeard (2026)
“Pletholophus tenuis” ** — Sano et al. (2017), Sano et al. (2020), Sano et al. (2022)
Sinanodonta tenuis — Bogatov & Prozorova (2017)

Symphynota discoidea Lea, 1834

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

Cristaria (Pletholophus) discoidea — Simpson (1900), Simpson (1914), Haas (1969), Heard (1977)
Cristaria discoidea discoidea — Haas (1930)
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), Graf & Cummings (2021), 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 (Group of S. purpurea) 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’].
SYNTYPES BMNH_78-1-28-200, Formosa.

Cristaria (Pletholophus) swinhoei — Simpson (1900), Preston (1912), Simpson (1914)
Anodonta lucida — Dautzenberg & Fischer (1905)
Cristaria discoidea swinhoei — Haas (1930)
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

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

Cristaria (Pletholophus) swinhoei — Simpson (1900), Preston (1912), 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 discoidea discoidea — Haas (1930)
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 discoidea discoidea — Haas (1930)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Cristaria tenuis — IUCN (2012), He & Zhuang (2013)

Anodonta chinensis Paetel, 1890

(reference to Anodonta chinensis Küster, 1853)
‘Phl.’ Paetel, 1890. Cat. Conch.-Samml. 3: 177.

Cristaria discoidea sautteri Haas, 1910

(intro'd as intra-sp. of Symphynota discoidea Lea, 1834)
Haas, 1910. Ann. Mag. Nat. Hist. 6: 499.
LECTOTYPE SMF_3668 (by Zilch, 1967: 119), Candidins See, Formosa.

Cristaria (Pletholophus) discoidea var. sautteri — Simpson (1914)
Cristaria discoidea sautteri — Haas (1930)
Cristaria (Pletholophus) discoidea sautteri — Kuroda (1941)
Cristaria (Pletholophus) discoidea discoidea — Haas (1969)
Pletholophus discoidea — Habe (1977)
Cristaria tenuis — He & Zhuang (2013)
Pletholophus tenuis — Nagel (2025)

Cristaria inangulata Haas, 1910

Haas, 1910. Ann. Mag. Nat. Hist. 6: 499.
LECTOTYPE SMF_3665 (by Zilch, 1967: 119), Tonkin.

Cristaria (Pletholophus) inangulata — Simpson (1914)
Cristaria discoidea discoidea — Haas (1930)
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), Nagel (2025)

Unio magnificus Griffith & Pidgeon, 1833

(misidentified reference to Symphynota magnifica Lea, 1834)
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

(error for Cristaria discoidea sautteri Haas, 1910)
‘Haas’ Habe, 1977. Mollusc. Japan: 117.

Cristaria discoides Hu, 2005

(error for Symphynota discoidea Lea, 1834)
Hu, 2005. Chinese J. Zool. 40: [4], table 1.
Xiong et al., 2012. Chinese J. Ocean. Limn. 30: 128.

Pletholophus honglinhensis Bogan et al., 2023

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

Pletholophus tenuis — Wu et al. (2025)