Bivalvia | Unionida | Hyrioidea

family HYRIIDAE Swainson, 1840

synonyms (16 nomina) | cladomics


Global Distribution of the Hyriidae. The green wedge of the pie depicts the relative Recent species diversity of the family in the order Unionida (93 of 1005).

The Hyriidae (93 Recent spp., 15 gen.) has a widely disjuct distribution in Australasia and South America. Historically, the subfamilial classification has followed this geographical partitioning. Our own phylogenetic work, however, has noticed the paraphyly of the Australasian lineages, and we have revised the classification of the Hyriidae accordingly.

Included Taxa

Decorative image of a representative Hyriinae

subfamily HYRIINAE Swainson, 1840: 76 Recent freshwater species.

synonymy (13 nomen) | 4 tribes, 1 genus

Recent Distribution: South America, Australasia

Decorative image of a representative Velesunioninae

subfamily VELESUNIONINAE Iredale, 1934: 17 Recent freshwater species.

synonymy (3 nomina) | 6 genera

Recent Distribution: Australasia

genus Antediplodon Marshall, 1929: fossil only.

synonymy (2 available nomina) | 20 species

genus Coocrania [not available]: fossil only.

synonymy (1 available nomen) | 1 species