species Parreysia rajahensis (Lea, 1841): synonymy

Unio rajahensis Lea, 1841

Lea, 1841. Proc. Amer. Phil. Soc. 2: 30.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 239, pl. 23, fig. 53.
Type(s): HOLOTYPE USNM_84638, Rajah’s Tank, India.

Parreysia (s.s.) rajahensis — Simpson (1900), Preston (1912), Simpson (1914), Preston (1915), Subba Rao (1989), Graf & Cummings (2007), Ramakrishna & Dey (2007)
Parreysia rajahensis — Haas (1969), Bogan (2010), IUCN (2010), Graf & Cummings (2021)
Parreysia (rajahensis-group) rajahensis — Bolotov et al. (2022)

Unio indicus Sowerby, 1866

Sowerby, 1866. Conch. Icon. 16: pl. 40, sp. 222.
Type(s): HOLOTYPE BMNH_1965195, India.

Parreysia (s.s.) rajahensis — Simpson (1900), Preston (1912), Simpson (1914), Preston (1915)
Parreysia rajahensis — Haas (1969)
Parreysia (rajahensis-group) rajahensis — Bolotov et al. (2022)

Unio indicus var. aurea Hanley & Theobald, 1874

‘Sowerby’ Hanley & Theobald, 1874. Conch. Indica (6): 43, pl. 107, fig. 4.
(intro'd as intra-sp. of Unio indicus Sowerby, 1866; homonym of Unio aureus Lea, 1859)