Pennatulidae

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

Pennatula is a genus of sea pens in the family Pennatulidae. The genus contains several bioluminescent species, including Pennatula rubra, Pennatula phosphorea, and Pennatula aculeata.

species of cnidarian

Sarcoptilus is a genus of sea pen.

Gyrophyllum is a genus of corals belonging to the family Pennatulidae.