Literature
- Williams, G.C. 1995. Living genera of sea pens (Coelenterata: Octocorallia: Pennatulacea): illustrated key and synopses. Zoological Journal of the Linnean Society 113: 93-140.
- Williams, G.C. 1999. Index Pennatulacea Annotated Bibliography and Indexes of the Sea Pens (Coelenterata: Octocorallia) of the World 1469-.