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!
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Unionoida | Unionoidea | Unionidae | Gonideinae | Contradentini | Lens eximius nominal species Unio semiquadrata Sowerby, 1866
 
Sowerby, 1866, Conch. Icon. 16: pl. 48, sp. 258.
Type(s): SYNTYPES BMNH_1968658, Lao Mountains, Camboja.
= Lens eximius Taxonomic Opinions
+ Lens eximius (Lea, 1856) — Pfeiffer et al., 2021
+ Physunio eximius (Lea, 1856) — He & Zhuang, 2013
+ Physunio eximius (Lea, 1856) — IUCN, 2012
+ Physunio eximius (Lea, 1856) — Brandt, 1974
+ Physunio (s.s.) eximius (Lea, 1856) — Haas, 1969
+ Physunio (s.s.) eximius (Lea, 1856) — Haas, 1919
+ Physunio (Lens) eximius (Lea, 1856) — Simpson, 1914
+ Physunio (sec. Lens) eximius (Lea, 1856) — Simpson, 1900
= Unio semiquadratus Sowerby — Fischer, 1891
- NO OPINION — Lea, 1870
= Unio semiquadrata Sowerby, 1866 — Sowerby, 1866
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