MUSSELp

MUSSELpdb

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Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae


Species & Genus Richness by
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Summary

North America

Central America

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Species Richness & Endemism by
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Data last updated
Thu 18 Dec 2025

Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Medionidus acutissimus

nominal species Unio rubellianus Sowerby, 1868

Unio rubellianus Sowerby, 1868 = Medionidus acutissimus

specimen image from publication‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 90, sp. 490.
(error for Unio rubellinus Lea, 1857)

= Medionidus acutissimus

Taxonomic Opinions

+ Medionidus acutissimus (Lea, 1831) — Parmalee & Bogan, 1998

+ Medionidus acutissimus (Lea, 1831) — Simpson, 1914

+ Medionidus acutissimus (Lea, 1831) — Simpson, 1900

 
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