Arcidens

Arcidens
A live individual of Arcidens confragosus
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Tribe: Anodontini
Genus: Arcidens
(Simpson, 1900)

Arcidens is a genus of freshwater mussels, aquatic bivalve molluscs in the family Unionidae, the river mussels.