Unio pfisteri Heude, 1874
Heude, 1874. J. de Conch. 22: 112.
Heude, 1875. Conch. Fluv. Nanking (1): pl. 1, fig. 1.
Type(s): SYNTYPES MNHN_MP_3396, Riviere de Nanking, Chine Central.

Ptychorhynchus pfisteri — Simpson (1900), Simpson (1914), Haas (1924), Thiele (1934), Haas (1969), ... Wu et al. (2024), Dai et al. (2024), Zhang et al. (2024), Dai et al. (2025), Dai et al. (2025)
— Liu et al. (1979)
Ptychorhynchus ptisteri [sic] — Sano et al. (2017), Wang et al. (2018)

Unio pfisteri var. insperatus Heude, 1877
Heude, 1877. Conch. Fluv. Nanking (2): pl. 14, fig. 28.
(intro'd as intra-sp. of Unio pfisteri Heude, 1874)
Type(s): SYNTYPES MNHN_MP_3426, Chine.

Ptychorhynchus pfisteri var. inspiratus [sic] — Simpson (1900)
Ptychorhynchus pfisteri var. inspiratum [sic] — Simpson (1914)
Ptychorhynchus pfisteri — Haas (1924), Haas (1969), IUCN (2012), He & Zhuang (2013)

Unio mediastinus Heude, 1883
Heude, 1883. Conch. Fluv. Nanking (8): pl. 63, fig. 123.

Ptychorhynchus mediastinus — Simpson (1900)
Ptychorhynchus pfisteri var. mediastinum — Simpson (1914)
Ptychorhynchus pfisteri — Haas (1924), Haas (1969), He & Zhuang (2013)

Ptychorhynchus pfisteri var. inspiratus Simpson, 1900
‘Heude’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 851.
‘Heude’ Simpson, 1914. Descr. Cat. Naiades: 1145.
(error for Unio pfisteri var. insperatus Heude, 1877)

Ptychorhynchus pfisteri — Haas (1924), Haas (1969)

Unio pfisteri inseparatus IUCN, 2012
‘Heude’ IUCN, 2012. IUCN Red List: [web].
(error for Unio pfisteri var. insperatus Heude, 1877)

Ptychorhynchus ptisteri Sano et al., 2017
Sano et al., 2017. J. Wat. Res. Prot. 9: 498.
Wang et al., 2018. Conserv. Genet. Resour. 11: 140.
(error for Unio pfisteri Heude, 1874)