Trinchesia divanica is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.Tenellia divanica, Martynov, 2002. In: World Register of Marine Species. Accessed through: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1793334 on 2026-03-02.Korshunova T.; Fletcher K.; Martynov A. (2025). The endless forms are the most differentiated—how taxonomic pseudo-optimization masked natural diversity and evolution: the nudibranch case Zoological Journal of the Linnean Society, Volume 204, Issue 4, August 2025, zlaf057,
Distribution This species was described from Peter the Great Bay, Sea of Japan, Russia.
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