(1)
García-Cárdenas, F. J.; Drewery, J.; López-González, P. J. Resurrection of the Sea Pen Genus Ptilella Gray, 1870 and Description of Ptilella Grayi N. Sp. From the NE Atlantic (Octocorallia: Pennatulacea). Sci. mar. 2019, 83, 261-276.