[1] Around 75% of genera in the family are endemic to a single zoogeographic region.

[1] It contains more than 500 species, of which more than 300 are endemic to the Palearctic realm.

[1] Cyclocypridinae are generally good swimmers,[2] but Candoninae is unable to swim.

[5][6] The following genera are recognised in the family Candonidae:[7]

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