Bivalvia | ... | Unionoidea | Unionidae | Gonideinae | Rectidentini | Contradentina | Lens
97 specimens + 22 GenBank vouchers

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 294 [14], pl. 25, fig. 8.
Type(s): LECTOTYPE USNM_83900, Siam.
Physunio (sec. Lens) eximius — Simpson (1900)
Physunio (Lens) eximius — Simpson (1914), Haas (1969)
Physunio (s.s.) eximius — Haas (1919), Haas (1969)
Physunio eximius — van Benthem Jutting (1953), Brandt (1974), Graf & Cummings (2007), Sri-aroon et al. (2007), Bogan (2010), IUCN (2012), He & Zhuang (2013), Zieritz et al. (2018), Sahidin et al. (2021)
Physunio cf. eximius — Bolotov et al. (2017)
Contradens eximius — Bolotov et al. (2017), Bolotov et al. (2018), Huang et al. (2019), Konopleva et al. (2019), Konopleva et al. (2019), Bolotov et al. (2020), Zieritz et al. (2020), Graf & Cummings (2021)
Lens eximius — Pfeiffer et al. (2021), Zieritz et al. (2021), Bolotov et al. (2022), Konopleva et al. (2023), Wu et al. (2024), Liu et al. (2024), Zieritz et al. (2024), Wu et al. (2024)
Physunio sp. 1 — Wu et al. (2021)

Sowerby, 1866. Conch. Icon. 16: pl. 48, sp. 258.
Type(s): SYNTYPES BMNH_1968658, Lao Mountains, Camboja.
Physunio (sec. Lens) eximius — Simpson (1900)
Physunio (Lens) eximius — Simpson (1914)
Physunio (s.s.) eximius — Haas (1919), Haas (1969)
Physunio eximius — Brandt (1974), IUCN (2012), He & Zhuang (2013)
Lens eximius — Pfeiffer et al. (2021)
Physunio (sec. Lens) eximius — Simpson (1900)
Physunio (Lens) eximius — Simpson (1914), Haas (1969)
Physunio (s.s.) eximius — Haas (1919), Haas (1969)
Physunio eximius — van Benthem Jutting (1953), Brandt (1974), Graf & Cummings (2007), Sri-aroon et al. (2007), Bogan (2010), IUCN (2012), He & Zhuang (2013), Zieritz et al. (2018), Sahidin et al. (2021)
Physunio cf. eximius — Bolotov et al. (2017)
Contradens eximius — Bolotov et al. (2017), Bolotov et al. (2018), Huang et al. (2019), Konopleva et al. (2019), Konopleva et al. (2019), Bolotov et al. (2020), Zieritz et al. (2020), Graf & Cummings (2021)
Lens eximius — Pfeiffer et al. (2021), Zieritz et al. (2021), Bolotov et al. (2022), Konopleva et al. (2023), Wu et al. (2024), Liu et al. (2024), Zieritz et al. (2024), Wu et al. (2024)
Physunio sp. 1 — Wu et al. (2021)