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Flabellina cf. bicolor (Kelaart, 1858) [Eolis]

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"cf." is an abbreviation from a Latin word (confer) and means 'refer to' or 'compare with', here it means it could possibly be Flabellina bicolor or perhaps something closely related, or at least similar in appearance.
Flabellina cf. bicolor is characterized by its translucent body with a white dorsal region. The cerata are long and sausage-shaped, basally translucent orange, followed by a broad whitish region, then a broad medial translucent orange region, then whitish again, with a distinctive orange ring at the apices. The rhinophores are whitish orange, basally translucent orange, with an orange tip an an medial translucent orange band. The white oral tentacles are long and smooth.
Flabellina cf. bicolor differs from Flabellina bicolor by its long sausage-shaped cerata, and by the lack of the flattened tips of the oral tentacles.
It also fits the description and the picture of Catriona sp. in IPN pretty well, but the rhinophores are not thin and smooth like in most species of the family Tergipedidae.
How to cite:
Köhler, E. (2016), published 30 October 2016, Flabellina cf. bicolor (Kelaart, 1858)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Flabellina_bicolor_cf.htm