Marine Biological Reports from Denmark

Meddelelser frå Danmarks Fiskeri- og Havundersø- gelser

Ny Serie, Bind 2, Nr. 23–26. Nr. 23: Investigations on the Quantitative and Qualitative Distribution of Zooplankton in the Southern Part of the Norwegian Sea. By V. K. Hansen. Nr. 24: A Quantitative Investigation of the Echinoderm Fauna of the Central North Sea. By Erik Ursin. Nr. 25: Conditioning Ostrea edulis L. from the Limfjord for Reproduction out of Season. By I. A. Aboul-Ela. Nr. 26: The Oligochaete Fauna of Three Danish Brackish Water Areas. By I. Dahl. Pp. 292 + 5 plates. (København: C. A. Reitzels Forlag, 1960.) 47 Danske kr.