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Tenellia sp. 04  Genus: A. Costa, 1866

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Tenellia sp. 04 was posted on 25 May 2003 at these website as Trinchesia yamasui (Hamatani, 1993) (which was moved by Cella et al. (2016) to the Genus Tenellia  A. Costa, 1866), because it was thought to be this species, Gosliner et al. (2015) says this is not the case and calls it Cuthona sp. 13
at page 345, there is a very similar Cuthona sp. 14 at the same page.
I changed it on 18 January 2016 into Trinchesia sp. 41  Genus: von Ihering, 1879.
Cella et al. (2016) moved it to the Genus Tenellia  A. Costa, 1866 in the Family Fionidae  J.E. Gray, 1857.
let me quote Cella et al. (2016):"Cuthona is polyphyletic although most Cuthona species included in this study clustered together in a large clade.... Within this major clade, two undescribed species, erroneously identified as Cuthona yamasui Hamatani, 1993 appeared here as not one, but two distinct sister species: as Cuthona sp. 13 and Cuthona sp. 14".
This "major clade" is the Genus Tenellia  A. Costa. I moved Trinchesia sp. 41 on 19 December 2016 as #04 to the Genus Tenellia.
References:
Gosliner, T.M, D.W. Behrens & Á.Valdés. 2015. Nudibranch & Sea Slug Identification Indo-Pacific.
New World Publications Inc. Jacksonville, FL. 408 pp.
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
How to cite:
Köhler, E. (2016), published 19 December 2016, Tenellia sp. 04  Genus: A. Costa, 1866
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Tenellia_sp_04.htm