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Diplodon (Diplodon) granosus granosus 004.jpg
External view of two valves of Diplodon granosus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Paleoheterodonta
Order: Unionoida
Family: Hyriidae Swainson, 1840

See text

Hyriidae is a taxonomic family of pearly freshwater mussels, aquatic bivalve molluscs in the order Unionoida. This family is native to South America, Australia, New Zealand and New Guinea.[1] 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)[2] uses three subfamilies. This family contains eighteen genera.

Subfamilies and genera[edit]


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


Genera within the subfamily Cucumerunioninae, from Australia, include:


Genera within the subfamily Velesunioninae, from Australia, include: from Australasia


  1. ^ Huber, Markus (2010). Compendium of Bivalves. A Full-color Guide to 3'300 of the World's Marine Bivalves. A Status on Bivalvia after 250 Years of Research. Hackenheim: ConchBooks. pp. 901 pp. + CD. ISBN 978-3-939767-28-2. 
  2. ^ Banarescu, Petru (1995). Zoogeography of Fresh Waters. Volume 3: Distribution and dispersal of freshwater animals in Africa, Pacific Areas and South America. Wiesbaden: AULA-Verlag. ISBN 978-3-89104-483-4.