Unio plagiosoma Benson, 1862
Benson, 1862. Ann. Mag. Nat. Hist. 10: 191.
Type(s): UNKNOWN BMNH_MP_432, Bengal [from type].

Parreysia (s.s.) favidens var. plagiosoma — Simpson (1900), Preston (1912), Simpson (1914), Preston (1915)
Parreysia favidens — Haas (1969)
Parreysia (s.s.) favidens plagiosoma — Subba Rao (1989), Ramakrishna & Dey (2007)
Parreysia favidens plagiosoma — IUCN (2011)
Parreysia (corrugata-group) plagiosoma — Bolotov et al. (2022), Bolotov et al. (2024)
Parreysia plagiosoma — Bolotov et al. (2022), Campbell & Lydeard (2026)

Unio tennentii Hanley & Theobald, 1872
Wood, 1815. Gen. Conch. 1: 108, pl. 24, figs. 1-3 [as ‘Mya corrugata’].
Hanley & Theobald, 1872. Conch. Indica (3): 22, pl. 45, figs. 7-9.
Type(s): HOLOTYPE BMNH_1907-12-30-56, British India.

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

Parreysia corrugata Bolotov et al., 2017
‘Müller’ of Authors.
Bolotov et al., 2017. Sci. Repts. 7: Table S1 [as ‘Parreysia corrugata sp. 3’].
Bolotov et al., 2017. Sci. Repts. 7: Table S1. [in part]
Huang et al., 2019. MPE 130: Table S4 [as ‘Parreysia corrugata sp. 3’].
Imsong & Murali, 2023. Uttar Pradesh J. Zool. 44(20): Table 1.
(misidentified reference to Mya corrugata Müller, 1774)

Parreysia favidens Pfeiffer et al., 2018
‘Benson’ of Authors.
Pfeiffer et al., 2018. J. Moll. Studies 84(4): Table 1.
Bolotov et al., 2020. Sci. Repts. 10: Table S1 [as ‘Parreysia favidens sp. 1’].
(misidentified reference to Unio favidens Benson, 1862)