Literature
  • 1877
  • Recherches sur l'embryologie des Bryozaires. Lille. 305 pp, 16 plates.
  • , 1983
  • Records of two hydromedusae from Akkeshi Bay. Proceedings of the Japanese Society for Systematic Zoology 25: 7-10.
  • 1903
  • Report on some Medusae from Norway and Spitzbergen. Bergens Museums Årbog, 1(4): 1-36, with 5 plates.
  • , 1992a
  • Report on the Hydroida collected by the 'BALGIM' expedition in and around the Strait of Gibraltar. Zoologische Verhandelingen 277: 1-262.
  • 1946
  • Reproduction and larval development of Danish marine bottom invertebrates, with special reference to the planktonic larvae in the Sound (Øresund). (With a section on lammelibranch larvae by C. Barker Jørgensen). Meddelelser fra Kommisionen for Danmaks Fiskeri- og Havundersøgelser. Serie: Plankton, Bd. 4(1): 1-523 (with 199 figures). Reitzels Forlag, København.
  • , 1983
  • Reproduction, recruitment and juvenile ecology of the starfish Asterias rubens and Marthasterias glacialis. J. mar. biol. Ass. U.K., 63, 745-776.
  • 1996
  • Resting eggs of zooplankton (Copepoda and Cladocera) from the Kiel Bay and adjacent waters (southwestern Baltic). Marine Biology, 125(1): 77-87.
  • 1972
  • Review of the annelid worms of the family Nereidae (sic) of Japan, with descriptions of five new species or subspecies. Bull. nat. Sci. Mus., 15(1): 37-153.
  • 1990
  • Review of the physical oceanography of the North Sea. Netherlands Journal of Sea Research, 26: 161-238.
  • 1974
  • Revision of the Cypridinacea of the Gulf of Naples (Ostracoda). Smithsonian Contributions to Zoology, 178: 1-64.