Home | About | Database | Mussel of the Month | Publications & Presentations

MUSSELpdb

Introduction

Browse

d'basing

Cladomics


Search the MUSSELpdb

Taxonomy

all genera

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
Wed 04 February 2026

Bivalvia | Galeommatida | Galeommatoidea | Lasaeidae | Arthritica

species Arthritica semen (Menke, 1843): synonymy

0 specimens

Synonymy

Pisidium semen Menke, 1843

Menke, 1843. Molluscorum Novae Hollandiae Specimen: 40.

Arthritica semen — Ponder (2023), Ponder et al. (2025)

Erycina helmsi Hedley, 1915

Hedley, 1915. Proc. Linn. Soc. N.S. Wales 39: 701, pl. 80, figs. 37-39.

Arthritica semen — Ponder (2023)

Taxonomic History (since 1900)

Arthritica semen — Ponder (2023), Ponder et al. (2025)

NSF icon

Site developed and maintained by Dan Graf & Kevin Cummings.
Funded by The National Science Foundation.

"Making the world a better place, one mollusk at a time."
MUSSEL icon