(EN) Patrizia Jereb, Clyde F.E. Roper, Mark D. Norman, Julian K. Finn, Callistoctopus (PDF), in Cephalopds of the World An Annotated and illustrated catalogue of Cephalopods species known to date Volume 3 Octopods and Vampire Squids, Food and Agriculture Organization of the United Nations, Roma, 2016, pp. 99-109, ISBN9789251079898.
