Cnidarians, Echinoderms and Crustaceans make up the bulk of the collection. It is mainly marine specimens for Norwegian waters, but the collection also contain specimens from other parts of the world as well as freshwater specimens. The most notable part is the crustaceans collected by G. O. Sars.

GBIF url: https://www.gbif.org/dataset/70bf8d53-be76-4390-920a-300eee146141
Citation: Wilhelmsen Å I, Bachmann L, Rindal E (2025). Crustacea collection (Cru) at UiO NHM, Oslo. Version 1.8. University of Oslo. Occurrence dataset https://doi.org/10.15468/efw98v accessed via GBIF.org on 2025-06-18.