Hyriidae
Hyriidae is a taxonomic family of pearly freshwater mussels, aquatic bivalve molluscs in the order Unionida. This family is native to South America, Australia, New Zealand and New Guinea. Like all members of that order, they go through a larval stage that is parasitic on fish.
The classification recognized by Banarescu uses three subfamilies. This family contains eighteen genera.
Subfamilies and genera
Hyriinae
Genera within the subfamily Hyriinae, from South America, include:; Tribe Castaliini
; Tribe Hyriini
- File:Prisodon obliquus 304146971.jpg|thumb|Prisodon obliquus in BrazilPrisodon
- Triplodon
- ''Diplodon''
Cucumerunioninae
- Echyridella
- Cucumerunio
- Hyridella
- ''Virgus''
Velesunioninae
- Alathyria
- *Alathyria jacksoni, the river mussel occurs in South Australia.
- Haasodonta
- Lortiella
- Microdonta
- Velesunio
- ''Westralunio''