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Data last updated
Mon 1 Dec 2025

Bivalvia | Unionoida | Unionoidea | Unionidae | Parreysiinae | Lamellidentini | Trapezidens

species Trapezidens scutum (Sowerby, 1868): synonymy

9 specimens + 6 Genbank vouchers

Synonymy

image of type lot

Unio scutum Sowerby, 1868

specimen image from publication‘Benson’ Sowerby, 1868. Conch. Icon. 16: pl. 94, sp. 510.
Type(s): HOLOTYPE (MONOTYPY) BMNH_1907-10-28-239, Tenasserim.

Lamellidens (s.s.) scutumSimpson (1900), Simpson (1914)
Lamellidens (s.s.) marginalis var. scutumPreston (1912)
Lamellidens (s.s.) marginalis scutumPreston (1915)
Lamellidens scutumPrashad (1922), Subba Rao (1989), Graf & Cummings (2007), Bogan (2010), IUCN (2014), Zieritz et al. (2018)
Lamellidens generosusHaas (1969)
Trapezidens scutumBolotov et al. (2017), Konopleva et al. (2020), Bolotov et al. (2020), Graf & Cummings (2021), Bolotov et al. (2022), Bolotov et al. (2022), Bolotov et al. (2022), Bolotov et al. (2024)

Unio marginalis var. zonata Hanley & Theobald, 1872

Deshayes, 1832. Enc. Méth. 2 (Deuxième partie): 587 [as ‘marginalis’].
specimen image from publicationHanley & Theobald, 1872. Conch. Indica (3): 20, pl. 44, fig. 2.
(intro'd as intra-sp. of Unio marginalis Lamarck, 1819)

Lamellidens (s.s.) marginalis var. zonatusPreston (1912)
Lamellidens (s.s.) marginalisSimpson (1914)
Lamellidens (s.s.) marginalis var. zonataPreston (1915)
Lamellidens scutumPrashad (1922), Subba Rao (1989)

Taxonomic History (since 1900)

Lamellidens (s.s.) scutumSimpson (1900), Simpson (1914)
Lamellidens (s.s.) marginalis var. scutumPreston (1912)
Lamellidens (s.s.) marginalis var. zonatusPreston (1912)
Lamellidens (s.s.) marginalisSimpson (1914)
Lamellidens (s.s.) marginalis var. zonataPreston (1915)
Lamellidens (s.s.) marginalis scutumPreston (1915)
Lamellidens scutumPrashad (1922), Subba Rao (1989), Graf & Cummings (2007), Bogan (2010), IUCN (2014), Zieritz et al. (2018)
Lamellidens generosusHaas (1969)
Trapezidens scutumBolotov et al. (2017), Konopleva et al. (2020), Bolotov et al. (2020), Graf & Cummings (2021), Bolotov et al. (2022), Bolotov et al. (2022), Bolotov et al. (2022), Bolotov et al. (2024)

 
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