Renilla koellikeri (also spelled R. kollikeri or R. köllikeri) is a species of sea pen that has been reported from the southern coast of California, including Santa Barbara, California.[1]
Williams, Gary C. "Index Pennatulacea Annotated Bibliography and Indexes of the Sea Pens (Coelenterata: Octocorallia) of the World 1469-1999". PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES. 51 (2): 19-103.