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Thu 3 September 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Bivalvia | Unionida | unionoid species

Genbank Accession KP795036 (COI): voucher & citations
     unionoid species __

Voucher/Isolate Data

UMMZ_304347. Nam Ou, Haat Veune Rapids, downstream of Gnot Ou, Phongsali Province, Laos (22°4’40” N, 101°46’ 0” E).

Associated Genbank Accessions: 16S: KF011265, 28S: KP795018, COI: KP795036, ND1: KF011256

Taxonomic Opinions/Usage

• — Campbell & Lydeard (2026)
• undescribed Contradentini sp. — Pfeiffer et al. (2021)
• Physunio sp. ‘Trapezoideus’ — Bolotov et al. (2020)
• Physunio sp. ‘Trapezoideus’ — Huang et al. (2019)
• Physunio sp. ‘Trapezoideus’ — Konopleva et al. (2019)
• Physunio sp. ‘Trapezoideus’ — Konopleva et al. (2019)
• Physunio sp. ‘Trapezoideus’ — Bolotov et al. (2018)
• Trapezoideus exolescens (Gould, 1843) — Lopes-Lima et al. (2017)
• Physunio sp. ‘Trapezoideus’ — Bolotov et al. (2017)
• Trapezoideus sp. 1 — Bolotov et al. (2017)
• Trapezoideus exolescens sensu Brandt (1974) — Konopleva et al. (2017)
• Trapezoideus exolescens (Gould, 1843) — Pfeiffer & Graf (2015)