MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Thu 22 January 2026
Bivalvia | Venerida | Cyrenoidea | Cyrenoididae | Polymesoda arctata
nominal species Cyrena regalis Prime, 1865
Cyrena regalis Prime, 1865 = Polymesoda arctata
Prime, 1865. Smithsonian Misc. Coll. (145): 18, fig. 13.
Taxonomic Opinions
+ Polymesoda arctata (Deshayes, 1854) — WoRMS, 2012
= Cyanocyclas regalis (Prime, 1865) — Simone, 2006
= Cyrena regalis Prime — Prime, 1895
= Cyrena regalis Prime — Clessin, 1877
= Cyrena regalis Prime — Prime, 1865
