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Tergiposacca Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016 in the family Fionidae J.E. Gray, 1857.
"Etymology: The generic name Tergiposacca comes from the resemblance of this genus to species of Tergipes but this species is distinguished by having saccate egg masses."
Let me quote Cella et al. (2016) on this species:
"The body is elongate, small and translucent. The foot corners are rounded. Some specimens have orange or burgundy pigmentation over the dorsum. Reddish or orange jaws are visible. The rhinophores and the oral tentacles are translucent and smooth. The rhinophores are longer than the conical oral tentacles.The cerata are long, cylindrical, with a uniform diameter for most of their length. They extend from the rear of the rhinophores to the tail. The ceratal epithelium is translucent, being visible the ramifications of the digestive gland. The coloration of the digestive gland varies from burgundy to pale grey, including yellow or orange. The upper 1/10 of the cerata there is a subapical white band, and it can be swollen. The cnidosacs are white. The elongate cerata are arranged in three elevated arched clusters on either side of the body. The anteriormost and middle cluster contains 5 - 12 cerata. The third cluster has 4 - 10 cerata. The genital aperture is located at the ventral portion of the first ceratal cluster on the right side. The anus is situated on a slightly elevated papilla located within the elevated arch of the second ceratal cluster on the right side."
The pictures #1, #2, and #3 were posted on 4 August 2011 at these websites as
Tergipes sp. 01 Genus: Bergh, 1874. This specimen is with a total length of 5 mm most probably a juvenile.
Gordon Tillen suggested the identification because of the similarity in the general shape to a picture of a different species of Tergipes from the Eastern Indian Ocean, Komodo Island, Indonesia, I agreed with the identification, because of the distinctive similar shaped egg-masses. In IPN is a picture of another different species of Tergipes at page 371, with the same shaped egg-masses, also Tergiposacca longicerata.
I thought picture #5 to be a distinct species, and posted it on 17 August 2012 as Tergipes sp. 02 Genus: Bergh, 1874, I changed both on 17 December 2016 into
Tergiposacca longicerata Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016.
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
How to cite:
Köhler, E. (2018), published 18 March 2018, Tergiposacca longicerata Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Cladobranchia/Tergiposacca_longicerata.htm