Identification guide to the planktonic polychaete larvae around the island of Helgoland (German Bight). Helgoländer Meeresuntersuchungen, 48(1): 1-58.
1986
Identification manual to the Mysidacea and Euphausiacea of the Northeast Pacific. Canadian Special Publication of Fisheries and Aquatic Sciences 93: 247-411.
1956
Il problema dell'allogonia negli idrozoi. 1. Osservazioni biologiche ed istologiche in una popolazione di Campanularia caliculata Hincks del Golfo di Cagliari. Archivo Zoologico Italiano 41: 337-368.
Inventaire de la faune marine de Roscoff. Cnidaires - cténaires. Roscoff, Station Biologique de Roscoff: 64pp.
1990
Invertebrates. Sinauer Associates Inc., Sunderland, U.S.A. 922 pp.
1960
Investigations on quantitative and qualitative distribution of zooplankton in the southern part of the Norwegian Sea. Meddedelseler fra Danmarks Fiskeri- og Havundersøgelser, Ny Serie, 2(23): 1-53.
1956
Isopoda en Tanaidacea (KV). Fauna van Nederland, 16. Sijthoff's, Leiden.
Isopoda genuina. In: G. Grimpe and E. Wagler (eds), Die Tierwelt der Nord- und Ostsee, 10. e. Lieferung 18. Leipzig.
1957b
Isopoda. Sub-order Flabellifera, Family Gnathidae, Genera Paragnathia, Gnathia; Family Cirolanidae, Genus Eurydice. Fiches d'Identification du Zooplancton, 78 (1957). Conseil International pour l'Exploration de la Mer, Kopenhagen.
1957a
Isopoda. Sub-order Valvifera, Family Idoteidae, Genera Idotea, Synisoma, Zenobiana; Sub-order Asellota, Family Munnopsidae, Genus Munnopsis. Fiches d'Identification du Zooplancton, 77 (1957). Conseil International pour l'Exploration de la Mer, Kopenhagen.