species Trapezidens exolescens (Gould, 1843): synonymy

Unio exolescens Gould, 1843

Gould, 1843. Proc. Boston Soc. Nat. Hist. 1: 141.
Type(s): LECTOTYPE USNM_85473 (by R.I. Johnson, 1964: 73), Tavoy, Burmah.

Trapezoideus exolescens — Simpson (1900), Preston (1912), Simpson (1914), Preston (1915), Haas (1919), ... Pfeiffer & Graf (2015), Kongim et al. (2015), Lopes-Lima et al. (2017), Zieritz et al. (2018), Do et al. (2018)
Trapezoideus misellus — Haas (1969)
Trapezoideus exolescens exolescens — Brandt (1974), Subba Rao (1989), Deein et al. (2004), Ramakrishna & Dey (2007)
Lamellidens exolescens — Bolotov et al. (2017), Konopleva et al. (2017)
Trapezidens exolescens — Bolotov et al. (2017), Bolotov et al. (2018), Huang et al. (2019), Jeratthitikul et al. (2019), Konopleva et al. (2020), ... Konopleva et al. (2023), Bolotov et al. (2024), Dai et al. (2024), Dai et al. (2024), Dai et al. (2026)

Unio fragilis Nevill, 1877

Nevill, 1877. J. Asiat. Soc. Bengal 46: 39.
(homonym of Unio (Leptodea) fragilis Rafinesque, 1820)

Trapezoideus foliaceus var. comptus — Simpson (1900), Simpson (1914), Preston (1915)
Trapezoideus misellus — Haas (1919), Haas (1969)
Trapezoideus exolescens — Prashad (1922), He & Zhuang (2013)
Trapezoideus exolescens pallegoixi — Brandt (1974)

Unio exolescens Hanley & Theobald, 1874

‘Gould’ Hanley & Theobald, 1874. Conch. Indica (6): 43, pl. 107, fig. 5.
(reference to Unio exolescens Gould, 1843)

Trapezoideus exolescens — Simpson (1900), Preston (1915)
Trapezoideus misellus — Haas (1919)

Unio exolesceus Ramakrishna & Dey, 2007

‘Gould’ Ramakrishna & Dey, 2007. Handb. Indian Freshw. Moll.: 328.
(error for Unio exolescens Gould, 1843)