The polyps are generally small (1 mm) and solitary, but a few species are colonial.

The fertilised eggs develop into planula larvae which become polyps.

In some species, medusae are only produced when the water temperature exceeds a certain level.

[2][3] This family is named after its type genus Olindias Muller 1861, but with confusion about the correct spelling, with Olindiadae, Olindiidae, Olindiadidae and Olindiasidae all being used.

[1] The World Register of Marine Species lists 15 genera:[1]