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Elysia sp. 12 is caracterized by its mottled orange-green colour, by small rounded tubercles with opaque white tips, and by a dark green transverse band just in front of the parapodia. The rhinophores have a dark green ring basally, the outer half is mottled orange-greenish.
It is as Elysia sp. 19 in IPN at page 86.
Elysia sp. 25 Genus: Risso, 1818, is most likely a colour form, I keep them seperate until I know more.
let me quote the description: "This species is greenish-orange with elevated opaque white punctations. A black transverse line is present immediately anterior to the parapodia."
Elysia sp. 12 is with the total length of approximately 2,5 cm very much larger than IPN writes: 7 mm
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. (2018), published 10 January 2018, Elysia sp. 12 Genus: Risso, 1818
available from https://www.Philippine-Sea-Slugs.com/Sacoglossa/Elysia_sp_12.htm