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picture #7 was posted on 26 December 2015 at these websites as Trinchesia sp. 40 Genus: von Ihering, 1879.
According Gosliner et al. (2015) and Cella et al. (2016) is this the "real" Cuthona yamasui Hamatani, 1993.
There are 2 misidentified 'Cuthona yamasui' species, in Gosliner et al. (2015) as Cuthona sp. 13 page 345, which is on these websites
now Trinchesia sp. 41 Genus: von Ihering, 1879, and Cuthona sp. 14.
Cella et al. (2016) moved it into the genus Tenellia A. Costa, 1866 in the family Fionidae J.E. Gray, 1857.
Korshunova et al. (2017) restricted the genus Tenellia A. Costa, 1866 to this 3 species:
-Tenellia adspersa (Nordmann, 1845)
-Tenellia chaetopterana Ekimova, Deart & Schepetov, 2017 and
-Tenellia fuscata (Gould, 1870)
and reinstated the family Trinchesiidae F. Nordsieck, 1972 with the genera
-Catriona Winckworth, 1941
-Diaphoreolis Iredale & O'Donoghue, 1923
-Phestilla Bergh, 1874
-Rubramoena Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016
-Tenellia A. Costa, 1866
-Trinchesia von Ihering, 1879 and
-Zelentia Korshunova, Martynov & Picton, 2017
and moved T. yamasui (Hamatani, 1993) again into the genus Trinchesia von Ihering, 1879.
I changed it again on 18 October 2017 into Trinchesia yamasui (Hamatani, 1993) [Cuthona].
Miller, M.C. 2004. An appraisal of the identity of the New Zealand species of the aeolid nudibranch family Tergipedidae (Gastropoda: Opisthobranchia). Journal of Natural History 38: 1183-1192.
Kristen Cella, Leila Carmona, Irina Ekimova, Anton Chichvarkhin, Dimitry Schepetov & Terrence M. Gosliner (2016)
A Radical Solution: The Phylogeny of the Nudibranch Family Fionidae.
PLoS ONE 11(12): e0167800. doi:10.137 1/journal .pone.0167800
The above publication is completely online, open access, CC-license
Korshunova, T.; Martynov, A.; Picton, B. (2017). Ontogeny as an important part of integrative taxonomy in tergipedid aeolidaceans (Gastropoda: Nudibranchia) with a description of a new genus and species from the Barents Sea.
Zootaxa. 4324(1): 1., available online at https://doi.org/10.11646/zootaxa.4324.1.1
How to cite:
Köhler, E. (2017), published 18 October 2017, Trinchesia yamasui (Hamatani, 1993)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Trinchesia_yamasui.htm