Zooplankton and Micronekton of the North Sea 2.0: Northern and arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum). IV. Hydroiden. Kungliga Svenska Vetenskaps-Akademiens Handlingar 45 (1): 1-124, pls 1-12.

Literature

Authors(s)	Jäderholm, E.
Year	1909
Title	Northern and arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum). IV. Hydroiden. Kungliga Svenska Vetenskaps-Akademiens Handlingar 45 (1): 1-124, pls 1-12.