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
Fri 13 February 2026
Bivalvia | Unionida | Etherioidea
family ETHERIIDAE Deshayes, 1832
synonyms (6 nomina) | cladomics
Global Distribution of the Etheriidae. The
thin yellow wedge of the pie represents the Recent species diversity of the
family in the order Unionida (4 of 1006).
The Etheriidae is the least species rich of all six freshwater mussel families with only 4 Recent species. However, these species have a widely disjunct, Gondwanan distribution in the Afrotropics, South America and East Asia. The monophyly of the family has been disputed.
Included Taxa
genus Bartlettia H. Adams, 1866: 1 Recent freshwater species.
synonymy (2 available nomina) | 1 species
Recent Distribution: South America
genus Etheria Lamarck, 1807: 1 Recent freshwater species.
synonymy (6 available nomina) | 1 species
Recent Distribution: Afrotropics
genus Mulleria Férussac, 1824: 1 Recent freshwater species.
synonymy (3 available nomina) | 1 species
Recent Distribution: South America
