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Page last updated
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!

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Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Mesonaias explicata

nominal species Unio testudineus Reeve, 1865

‘Morelet’ Reeve, 1865. Conch. Icon. 16: pl. 22, sp. 101.
(misidentified reference to Unio testudineus Morelet, 1849)
Type(s): FIGURED SPECIMEN BMNH_20190695, Rio Usumacinta, Guatemala.

= Mesonaias explicata

Taxonomic Opinions

+ Mesonaias explicata (Morelet, 1849) — Cummings et al., 2025

+ Lampsilis (Cyrtonaias) microdon (Marts.) — Haas, 1929

+ Lampsilis (Cyrtonaias) livida Simpson, 1900 — Frierson, 1927

+ Lampsilis (Proptera) livida Simpson, 1900 — Simpson, 1914

+ Lampsilis (Proptera) lividus Simpson, 1900 — Simpson, 1900

+ Unio (Uniomerus) explicatus Morelet, 1849 — Martens, 1900

+ Unio (Mesonaias) explicatus A. Morelet, 1849 — Fischer & Crosse, 1894

 
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