Literature
  • 1968
  • Invertebrate Zoology. W.B. Saunders Company: 605-669.
  • 1889
  • Echinodermata. Rep. Deep-sea Trawling Cruise off the S.W. coast of Ireland, under the direction of Rev. W. Spotswood Green. Ann. Mag. Nat. Hist. (6) IV.