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Pretty similar are:
Armina sp. 02 which has a black foot with an orange-red margin followed by an interior diffuse blue band, and has rhinophores, basal diffuse blue, then black, the apex is orange-red, between the rhinophores is a diffuse blue patch,
Armina sp. 06 which has a diffuse blue patch on the anterior portion of the oral veil and has pale yellow margin of the foot followed by pale blue, and
Armina sp. 08 which differs by its greyish foot with a diffuse whitish margin, by the greyish oral veil with a pale orange margin, and by the orange rhinophores.
This specimen was posted on 25 April 2011 at these websites as Armina sp. G Genus: Rafinesque, 1814,
on 18 July 2011 changed into Armina sp. 07 Genus: Rafinesque, 1814,
I identified it on 26 December 2011 and changed it again.
How to cite:
Köhler, E. (2016), published 27 July 2016, Armina magna Baba, 1955
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Armina_magna.htm