Literature
  • , 1972
  • Cephalopods of Hong Kong. 138 pp. Hong Kong Govt. Press.
  • Nesis 1987
  • Cephalopods of the world. T.F.H. Publications, Inc., Ltd.
  • 1993
  • Check list of species (algae, invertebtates and vertebrates) found in the vicinity of the island of Helgoland (North Sea, German Bight) - a review of recent records. Helgoländer Meeresunters., 47: 1-34.