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The identifification of the specimen pictures #3, #4, and #5 was confirmed by Dr. Richard C. Willan, he writes (pers. comment):
"Yes; it is Phyllaplysia lafonti. At present Phyllaplysia lafonti is interpreted be a circumglobal species, but I suspect genetics will show it to be a complex of closely-related and morphologically very similar species in different oceans. That is the same story as with (the former) Aplysia dactylomela and Dolabrifera dolabrifera."
This species was posted on 1 February 2011 at these websites as Phyllaplysia lafonti (Fischer P., 1870) [Dolabrifera],
IPN places it in the genus Petalifera, with the authority (Fischer, 1870).
I moved it into the genus into Petalifera because of IPN and kept the authority (Fischer, 1870) because of Sabelli et al. (1990).
I changed it again on 17 November 2011 into Phyllaplysia lafonti Fischer, P., 1872 because
CLEMAM (Check List of European MArine Mollusca), gives the authority to Fischer P. 1872 , and does not mention "Fischer P., 1870",
I decided to follow WoRMS (World Register of Marine Species),
and changed it on 20 July 2018 back into Phyllaplysia lafonti (P. Fischer, 1870) [Dolabrifera].
Phyllaplysia lafonti is the type species of the genus Phyllaplysia.
Annotated Check-List of Mediterranean Marine Mollusks, Bruno Sabelli, Riccardo Gianuzzi-Savelli and Daniele Bedulli, Società Italiana di Malacologia, Editioni Libreria Naturalistica Bolognese, 1990
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426pp.
MolluscaBase (2018). Phyllaplysia lafonti (P. Fischer, 1870). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=139599 on 2018-07-20
More information on Phyllaplysia lafonti are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2018), published 20 July 2018, Phyllaplysia lafonti (P. Fischer, 1870)
available from https://www.Philippine-Sea-Slugs.com/Aplysiida/Phyllaplysia_lafonti.htm