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Taxonomy

all genera

Summary

Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae


Species & Genus Richness of
freshwater mussels
by Taxonomy


Species & Genus Richness of
freshwater bivalves
by Family

Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

East Asia

Australasia


Species Richness & Endemism of
freshwater mussels
by Geography


Data last updated
Thu 19 March 2026

Publication Ortmann (1918): summary

Full Citation

Ortmann, A.E. 1918. The systematic position of two species of mussels from the Ozarks. Nautilus 32(1): 13-15. Available electronically.

Attributed Nominal Species

Unio conradi Ortmann, 1918 = Medionidus conradicus

Ortmann, 1918. Nautilus 32(1): 14.
(error for Unio conradicus Lea, 1834)

Taxonomic Opinions

Eurynia (Micromya) ellipsiformis (Conr.) = Venustaconcha ellipsiformis

Eurynia (Micromya) pleasi (Marsh) = Venustaconcha pleasii

Eurynia (Micromya) venusta (Lea, 1838) = Venustaconcha ellipsiformis

Lampsilis brevicula (Call) = Lampsilis reeveiana + Lampsilis brittsi

+ Lampsilis brittsi Simpson, 1900

Lampsilis fasciola

+ Unio multiradiatus Lea, 1829

Lampsilis luteola = Lampsilis radiata

Lampsilis ventricosa = Lampsilis cardium

Medionidus plateolus = Medionidus conradicus

+ Unio conradicus Lea, 1834

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