Jäderholm, E., 1909. Northern and arctic Invertebrates in the collection of the Swedish State Museum (Riksmuseum). IV. Hydroiden. K. svenska VetenskAkad. Handl. 45 1: 1-124.
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Jäderholm, E.
1909
Northern and arctic Invertebrates in the collection of the Swedish State Museum (Riksmuseum). IV. Hydroiden