Literature
  • , 2002
  • Massaal aanspoelen van Bezaantjes (Velella velella) en Sepia orbignyana op Texel. Het Zeepaard, 62(5): 153-160.
  • 1906
  • Die Actinien Larven. Nordisches Plankton, 6(11): 65-89. Lipsius & Tischer, Kiel. (Reprint Asher & Co., Amsterdam, 1964).
  • 1974
  • Les euphausiacés de Méditerranée (Systematique et développement larvaire. Biogeographie et biologie). Université de Provence, Aix-Marseille. 1-380 p. Docteur des Sciences Naturelles.
  • , 1925
  • Amphipodes. Faune de France, 9. Lechevalier, Paris. 488 pp, 438 figures.
  • , 1998
  • Molecular phylogeny of tunicates. A preliminary study using 28S ribosomal RNA partial sequences: implications in terms of evolution and ecology. In: Q. Bone (ed.),
  • 1969
  • Crustacea Decapoda Brachyura. Marine Invertebrates of Scandinavia, 2. Oslo.
  • 1874
  • Die Gattungen und Arten der Halocypriden. Verh. Zool. Bot. Ges., 2: 1-16.
  • 1890
  • Die Gattungen und Arten der mediterranen und atlantischen Halocypriden. Arb. Zool. Inst. Univ. Wien, 9: 1-34.
  • 1982
  • Continuous Plankton Records: Seasonal Variations in the Distribution and Abundance of Plankton in the North Atlantic Ocean and the North Sea. Journal of Plankton Research, 4(3): 435-462.
  • 1978
  • Continuous Plankton Records: Zooplankton and environment, NE Atlantic and North Sea, 1948-1975. Oceanologica Acta, 1: 9-23.
  • 1998
  • A female giant squid (Architeuthis) stranded on the Aberdeenshire coast. J. Moll. Stud., 64, 489-492.
  • , 1955
  • The tidal plankton over Stoupe Beck Sands, Robin Hood's Bay. J. Anim. Ecol., 24: 445-462.
  • , 1963
  • Continuous Plankton Records: Contributions towards a Plankton Atlas of the NE Atlantic and the North Sea, Part VII: The seasonal and annual distribution of the Pteropod Pneumodermopsis, Keferstein. Bulletin of Marine Ecology, 67: 31-38.
  • 1995a
  • North-West European thecate hydroids and their Medusae. Part 1. Synopses of the British Fauna (New Series), No 50.
  • 1995b
  • North-West European thecate hydroids and their Medusae. Part 2. Synopses of the British Fauna (New Series), No 50.
  • 1990a
  • European Obelia (Cnidaria, Hydroida): systematics and identification. Journal of Natural History 24: 535-578.
  • 1975a
  • The hydroid species of Obelia (Coelenterata, Hydrozoa, Campanulariidae), with notes on the medusa stage. Bulletin of the British Museum (Natural History) (Zoology Series) 28: 249-293.
  • 1982a
  • Hydroids and medusae of the family Campanulariidae recorded from the eastern North Atlantic, with a World synopsis of genera. Bulletin of the British Museum (Natural History) (Zoology Series) 42: 37-148.
  • 1975
  • The temperature relationships and age-structure of North Sea and Mediterranean populations of Branchiostoma lanceolatum. Symposia of the zoological Society of London, 36: 213-233.