Virgulariidae

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

Characteristics
Colonies are bilateral, long and slender to very slender. The colony axis is noticeable and present throughout.

Genera
The World Register of Marine Species lists the following genera:
 * Acanthoptilum Kölliker, 1870
 * Grasshoffia Williams, 2015
 * Scytaliopsis Gravier, 1906
 * Scytalium Herklots, 1858
 * Stylatula Verrill, 1864
 * Virgularia Lamarck, 1816