Tenellia sp. 17  Genus: A. Costa, 1866

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Tenellia sp. 17 is characterized by its translucent white body. The smooth rhinophores are translucent white with a subapical orange/brown band. The oral tentacles are orange/brown with a translucent apex. The thin cerata are translucent white with one small subapical orange/brown spot on each ceras.
This species is most likely as Cuthona sp. 29 in IPN at page 368.
Let me quote the description: "The body is translucent white with cream to opaque white on the head and scattered over the center of the notum. Each ceras has a single red spot below the apex. The rhinophores are opaque white basally with a red-orange apex. The oral tentacles are red with orange spots and an opaque or translucent white apex."
This picture shows a 3 mm juvenile specimen.
This species was posted on 4 November 2010 on these websites as Cuthona sp. B  Genus: Alder & Hancock, 1855, and because of Miller (2004) changed
on 14 June 2011 into Trinchesia sp. 02  Genus: von Ihering, 1879.
Cella et al. (2016) restricted the genus Cuthona  Alder & Hancock, 1855 to the type species, C. nana (Alder & Hancock, 1842) just like Miller (2004) did, and synonymised the genera
- Catriona  Winckworth, 1941,
- Phestilla  Bergh, 1874,
- Cuthona  Alder & Hancock, 1855 (partim), and
- Trinchesia  Ihering, 1879
with Tenellia  A. Costa, 1866 in the Family Fionidae  J.E. Gray, 1857.
I moved on 31 December 2016 Trinchesia sp. 02  Genus: von Ihering, 1879 as #17 to the Genus Tenellia  A. Costa, 1866.
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs.
Sea Challengers Natural History Books. Gig Harbor, Washington. 426pp.
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
How to cite:
Köhler, E. (2016), published 31 December 2016, Tenellia sp. 16  Genus: A. Costa, 1866
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Tenellia_sp_17.htm