Xeniidae is a family of soft coral in the order Alcyonacea.
Predatory sea slugs of the genus Phyllodesmium are reported to feed on Xeniidae species. Representatives of this family have been observed to provide shelter to juvenile fish.
The family contains the following genera:
This nudibranch (Phyllodesmium crypticum) mimics Xeniid corals it feeds on
Cerates of a Phyllodesmium rudmani