WoRMS taxon details
Oorhiza borealis Mereschkowsky, 1878
1723418 (urn:lsid:marinespecies.org:taxname:1723418)
accepted
Species
Hydractinia borealis (Mereschkowsky, 1878) · unaccepted
marine, brackish, fresh, terrestrial
recent only
Mereschkowsky C. (1878). Studies on the Hydroida. <em>Annals and Magazine of Natural History (5).</em> 1: 322-340, pls 13-15., available online at https://www.biodiversitylibrary.org/page/27735655
page(s): 327, pl. 15 figs 7-11. [details]
page(s): 327, pl. 15 figs 7-11. [details]
Note White Sea, Onega Bay, Solovetsky Islands, max....
From editor or global species database
Type locality White Sea, Onega Bay, Solovetsky Islands, max. 10 fathoms; on gastropods like Buccinum undatum Linnaeus, 1758 and Neptunea despecta (Linnaeus, 1758). [details]
Status Only known from first description, not mentioned in Naumov (1969). Status unclear. Is recognizable by the complete...
Status Only known from first description, not mentioned in Naumov (1969). Status unclear. Is recognizable by the complete reduction of the gonozooids, a single egg per gonophore, and the presence of smooth spines, thus resembling Hydractinia serrata Kramp, 1943. [details]
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database. Oorhiza borealis Mereschkowsky, 1878. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1723418 on 2025-04-16
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Nomenclature
original description
Mereschkowsky C. (1878). Studies on the Hydroida. <em>Annals and Magazine of Natural History (5).</em> 1: 322-340, pls 13-15., available online at https://www.biodiversitylibrary.org/page/27735655
page(s): 327, pl. 15 figs 7-11. [details]
page(s): 327, pl. 15 figs 7-11. [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Status Only known from first description, not mentioned in Naumov (1969). Status unclear. Is recognizable by the complete reduction of the gonozooids, a single egg per gonophore, and the presence of smooth spines, thus resembling Hydractinia serrata Kramp, 1943. [details]Type locality White Sea, Onega Bay, Solovetsky Islands, max. 10 fathoms; on gastropods like Buccinum undatum Linnaeus, 1758 and Neptunea despecta (Linnaeus, 1758). [details]
