Echinoptilidae
# Echinoptilidae

Echinoptilidae is a family of sea pens, a member of the subclass Octocorallia in the phylum Cnidaria.

## Characteristics

Colonies are cylindrical without axis, and the rachis is generally longer than the peduncle. The colony may be radially or bilaterally symmetrical. Autozooids have non-retractile, bifurcated calyces with many sclerites.

## Distribution

Indo-West Pacific to south western Africa in shallow sublittoral to over 800m depth.

## Genera

The World Register of Marine Species list the following genera:

* Genus Actinoptilum Kükenthal, 1911
* Genus Echinoptilum Hubrecht, 1885
