MUSSELpdb

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Unionidae

Margaritiferidae

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Mycetopodidae

Iridinidae

Species & Genus Richness by
Taxonomy

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Summary

North America

Central America

South America

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Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

Bivalvia | ... | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus

nominal species Unio ater Bourguignat, 1864

= Unio crassus

Taxonomic Opinions

+ Unio mancus var. macrorhynchus Bourguignat — Germain, 1931

+ Unio macrorhynchus (Bgt.) Locard, 1882 — Westerlund, 1890

+ Unio (Sandriana) macrorhynchus Bourguignat in Locard — Locard, 1889

+ Unio (Groupe de l’U. sandrii) macrorhynchus Bourguignat, 1879, Mss. — Locard, 1882