MUSSELpdb

Introduction

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d'basing

Taxonomy

all genera

Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae

Species & Genus Richness by
Taxonomy

Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

East Asia

Australasia

Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

nominal species Cyclas duplicata Pfeiffer, 1821

= nomen dubium

Taxonomic Opinions

= Pisidium duplicatum Pfeiffer — Prime, 1895

= Pisidium duplicatum Pfeiffer — Prime, 1870

= Pisidium duplicatum Pfeiffer — Prime, 1852

= Cyclas (Pisidium) duplicatum Pf. — C.B. Adams, 1847