Trinchesia anulata is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.MolluscaBase eds. (2026). MolluscaBase. Tenellia anulata (Baba, 1949). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1793310 on 2026-03-02Korshunova 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 the Echizen Coast, Fukui Prefecture, north-west coast of Honshu, Japan. It has also been reported from the Izu Peninsula, Shizuoka Prefecture on the opposite coast of Honshu.Rudman, W.B. (2006 May 8) Cuthona anulata (Baba, 1949). [In] Sea Slug Forum. Australian Museum, Sydney.
References
Baba, K. (1949). Opisthobranchia of Sagami Bay collected by His Majesty the Emperor of Japan. Iwanami Shoten, Tokyo, 194pp., 50 pls.
External links Baba, K. (1961). Three new species of the genus Catriona from Japan (Nudibranchia-Eolidacea). Publications of the Seto Marine Biological Laboratory. 9(2): 367-372 Burn, R. F. (2006). A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Reports. 10:1–42