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It looks somehow similar to Aldisa sp. 4 in IPN at page 160 which differs by the dark red body colour and by opaque white gills.
Dr. Alicia Hermosillo McKowen labelled it 'Dorido amarillo 2.JPG'.
NUDIPIXEL has a picture of a similar specimen from Taiwan which is for sure IPN Aldisa sp. 4!
R.F. Johnson (2011) moved the genus Aldisa Bergh, 1878 from the family Dorididae Rafinesque, 1815 to the resurrected family Cadlinidae Bergh, 1891.
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs.
Sea Challengers Natural History Books. Gig Harbor, Washington. 426 pp.
Johnson, Rebecca F. 2011. Breaking family ties: taxon sampling and molecular phylogeny of chromodorid nudibranchs (Mollusca, Gastropoda).
Zoologica Scripta 40(2): 137-157. Article first published online: 3 NOV 2010
How to cite:
Köhler, E. (2017), published 28 January 2017, Aldisa sp. 04 Genus: Bergh, 1878
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Aldisa_sp_04.htm