The invertebrate collections (excluding insects) at the Swedish Museum of Natural History house over 500000 lots in ethanol, dry and on microscope slides. Mollusca constitute more than half of the collections. The geographic scope is worldwide, with a good representation of the Swedish fauna. In 2015, about 30% of the collections have been digitized. Type material is represented in a separate dataset. For further information and contact see http://www.nrm.se/english/researchandcollections/zoology/collections/invertebrates.305_en.html