Unio grayii Griffith & Pidgeon, 1833
‘Lea’ Griffith & Pidgeon, 1833. [in] Cuvier, Animal Kingdom 12(38): 601, pl. 21, fig. 3.

Nodularia (sec. Lanceolaria) grayana — Simpson (1900), Simpson (1914)
Unio (Nodularia) grayanus — Dautzenberg & Fischer (1905)
Lanceolaria grayana — Haas (1911), Liu et al. (1979), Wu et al. (2019)
— Haas (1969)
Lanceolaria grayi — Dang et al. (1980), Do et al. (2018)
Lanceolaria grayii — IUCN (2012), He & Zhuang (2013), Lopes-Lima et al. (2017), Bolotov et al. (2017), Bolotov et al. (2017), ... Hou et al. (2024), Dai et al. (2025), Chen et al. (2025), Campbell & Lydeard (2026), Wu et al. (2026)

Unio grayanus Lea, 1834
Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 66 [178], pl. 9, fig. 26.
Type(s): HOLOTYPE USNM_84162, China.

Nodularia (sec. Lanceolaria) grayana — Simpson (1900), Simpson (1914)
Unio (Nodularia) grayanus — Dautzenberg & Fischer (1905)
Lanceolaria grayana — Haas (1911), Haas (1924), Zhadin (1938), Zhadin (1965), Haas (1969), ... Kim et al. (2021), Zieritz et al. (2021), Wu et al. (2021), Dai et al. (2024), Xiang et al. (2025)
— de Gregorio (1914)
Lanceolaria (s.s.) grayana — Thiele (1934)
Lanceolaria grayana grayana — Haas (1969)
Lanceolaria grayii — He & Zhuang (2013), Graf & Cummings (2021), Konopleva et al. (2023), Dai et al. (2025)
Lanceolaria glayana [sic] — Wang et al. (2016)
Lanceolaria grayi — Do et al. (2018)

Unio (Nodularia) gracillimus Rolle, 1904
Rolle, 1904. Nachr. Bl. Dtsch. Malak. Ges. 36: 26, pl. 4, figs. b-c.
Type(s): SYNTYPE SMF_3570, Zw. Hanoi u Hoa Bimo, Tonkin [Road From Hanoi To Hoa-Bimo, China, North Pacific Ocean].

Unio (Nodularia) grayanus — Dautzenberg & Fischer (1905)
Lanceolaria grayana — Haas (1911)
Nodularia (sec. Lanceolaria) grayana — Simpson (1914)
Lanceolaria grayana grayana — Haas (1969)
Lanceolaria grayii — He & Zhuang (2013)
Lanceolaria grayi — Do et al. (2018)

Unio (Nodularia) grayanus Dautzenberg & Fischer, 1905
‘Lea’ of Authors.
Dautzenberg & Fischer, 1905. J. de Conch. 53: 202.
Haas, 1910. Conch. Cab. 9 (pt. 2, h. 41): 44, pl. 4b-c.
(reference to Unio grayanus Lea, 1834)

Lanceolaria grayi — Dang et al. (1980)
Lanceolaria grayana — Kondo (2008)

Lanceolaria oxyrhyncha cuspidata Kira, 1959
‘Kuroda, MS’ Kira, 1959. Illustr. Shells Japan: 172, pl. 63, fig. 18.
(intro'd as intra-sp. of Unio oxyrhynchus Martens, 1861)

Lanceolaria oxyrhynchus cuspidata — Kira (1954)
Lanceolaria oxyrhyncha cuspidata — Kira (1959), Take & Kuroda (1959)
Lanceolaria cuspidata — Kuroda (1963)
Lanceolaria grayana — Habe (1977), Habe (1991), Kondo (2008)
Lanceolaria grayii — He & Zhuang (2013)

Unio grayensis Jay, 1835
Jay, 1835. Cat. Rec. Shells: 17.
(error for Unio grayanus Lea, 1834)

Lanceolaria glayana Wang et al., 2016
Wang et al., 2016. mtDNA 27(2): 846.
(error for Unio grayanus Lea, 1834)