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Pretty similar is:
Facelinidae sp. 04 Family: Bergh, 1889, which differs by a frosted white body, by translucent purple rhinophores with incomplete annulae, by transcendent cerata with a tan core, and by long oral tentacles, basally translucent purple, the outer 4/5 opaque white.
It was posted on 5 August 2004 on these websites as Flabellina sp. B Genus: Voigt, 1834, and
on 23 August 2011 changed into Flabellina sp. 02 Genus: Voigt, 1834.
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.
Burn (2018) established that the name Flabellina was first established by McMurtrie in the first English edition of Cuvier's Règne Animal. The name Flabellina had earlier been attributed by ICZN Opinion 781 to Voigt (1834), in the German edition of Cuvier's work; and later to Gray (1833) in
Griffith & Pidgeon's translation of the same work.
I changed it again on 7 April 2018 into Flabellina sp. 02 Genus: McMurtrie, 1831
Robert Burn 2018. Flabellina McMurtrie, 1831: The earliest valid Latinization?
THE NAUTILUS 132(1):33 - 34, 2018
How to cite:
Köhler, E. (2019), published 16 June 2019, Flabellina sp. 02 Genus: McMurtrie, 1831
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Cladobranchia/Flabellina_sp_02.htm