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This species is Eubranchus sp.4 in IPN, page 356,
let me quote IPN:" This elongate species has a dark brown body color. The cerata have opaque white tubercles in the lower half with a wider smooth bulbous apical portion with an orange subapical ring"
Very similar is Trinchesia sp. 28 which differs by the brown band at the posterior side of the rhinophores and by the white longitudinal lines at the cerata.
It was posted on 20 November 2010 at these websites as Eubranchus sp. B Genus: Forbes, 1838., and changed on 21 July 2011 into
Eubranchus sp. 02 Genus: Forbes, 1838.
For some genera, such as Trinchesia was the alphabet almost through. I had to change the distinguishing alphabetic character into a number. I had chosen 2-digit numbers, even though '01' looks a little bit stupid, and now is only the genus italic written.
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs.
Sea Challengers Natural History Books. Gig Harbor, Washington. 426pp.
How to cite:
Köhler, E. (2017), published 25 February 2017, Eubranchus sp. 02 Genus: Forbes, 1838
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Eubranchus_sp_02.htm