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 (see glochidium).

The classification recognized by Banarescu (1995) uses three subfamilies. This family contains eighteen genera.

Hyriinae
Genera within the subfamily Hyriinae, from South America, include:


 * Paxyodon
 * Castalina
 * Chevronaias
 * Tribe Castaliini
 * Castalia
 * Castaliella
 * Callonaia
 * Tribe Hyriini
 * Prisodon
 * Triplodon
 * Tribe Rhipidodontini
 * Diplodon

Cucumerunioninae
Genera within the subfamily Cucumerunioninae, from Australasia, include:
 * Echyridella
 * Cucumerunio
 * Hyridella
 * Virgus

Velesunioninae
Genera within the subfamily Velesunioninae, from Australasia, include:
 * Alathyria
 * Alathyria jacksoni, the river mussel (or black river mussel ) occurs in South Australia.
 * Haasodonta
 * Lortiella
 * Microdonta
 * Velesunio
 * Westralunio