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
Thu 1 January 2026

Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Sphaerium corneum

nominal species Nux nigella Humphrey, 1797

= Sphaerium corneum

Taxonomic Opinions

+ Sphaerium (s.s.) corneum (Linnaeus, 1758) — Vinarski & Kantor, 2016

+ Sphærium corneum Scopoli — Prime, 1870

+ Sphærium corneum Linn. — Deshayes, 1853

= Nux nigella — Humphrey, 1797