Two new species of the nudibranch genus , and , are described from the Arctic and North Pacific oceans respectively, based on morphological and molecular data, and the North Pacific is revealed to be a species complex. The species is described from the northwestern Pacific (Kamchatka) differing from the northeastern Pacific by molecular and morphological data. The synonymy of with is confirmed by analysis of their original descriptions. An endemic Arctic species is also described here, differing substantially from all species of the genus using morphological and molecular data. An unusual record of the recently described Ekimova, Korshunova, Schepetov, Neretina, Sanamyan, Martynov, 2015 is also presented, the first from the northeastern Pacific, geographically separated from the type locality of this species in the northwestern Pacific by a distance 6000 km; molecular data show them to belong to the same species.
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| http://dx.doi.org/10.3897/zookeys.630.10397 | DOI Listing |
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