Actiniarian fauna of the Kara Sea N.Yu. Ivanova and S.D. Grebelnyi Proceedings of the Zoological Institute RAS Vol. 325, No. 2, 2021, pp. 156–182 10.31610/trudyzin/2021.325.2.156 УДК 593.65 The history of study, the taxonomic composition and the origin of the sea anemone fauna of the Kara Sea (Actiniaria, Anthozoa, Cnidaria) N.Yu. Ivanova* and S.D. Grebelnyi Zoological Institute of the Russian Academy of Sciences, Universitetskaya nab. 1, 199034 Saint Petersburg, Russia; e-mail:
[email protected],
[email protected] Submitted March 1, 2021; revised May 2, 2021; accepted 9 May, 2021 ABSTRACT Based on the study of new collection material and literature data, the composition of the sea anemone fauna of the Kara Sea is described. It includes 13 species of 7 families. Among them are 10 species that have previously been known for this region: Urticina crassicornis (O.F. Müller, 1776), Aulactinia stella (Verrill, 1864), Hormathia digi- tata (O.F. Müller, 1776), Allantactis parasitica Danielssen, 1890, Actinostola callosa (Verrill, 1882), A. spetsber- gensis (Carlgren, 1893), Anthosactis janmayeni Danielssen, 1890, Halcampa arctica Carlgren, 1893, Edwardsia arctica Carlgren, 1921, Ptychodactis patula Appellöf, 1893, and 3 species reported for the Kara Sea for the first time: Cactosoma abyssorum Danielssen, 1890, Haliactis arctica Carlgren, 1921, and Edwardsia vitrea Danielssen, 1890. The ranges of the species are described. A detailed consideration of the species’ geographical distribution, determined by the temperature, depth and salinity, allows the anemones to be subdivided into 3 groups: a) inha biting the shelf and associated with high salinity; b) eurybathic, associated with the high latitudes, high salinity and a narrow interval of low temperatures; c) the most widespread, withstanding desalination and low tempera tures.