Aeolidia filomenae

Aeolidia filomenae Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016

Aeolidia filomenae @ Baleal, Portugal 15-08-2014 by João Pedro Silva

Taxonomy

	Superdomain	Biota
	Kingdom	Animalia
	Phylum	Mollusca
	Class	Gastropoda
	Subclass	Heterobranchia
	Infraclass	Euthyneura
	Subterclass	Ringipleura
	Superorder	Nudipleura
	Order	Nudibranchia
	Suborder	Cladobranchia
	Superfamily	Aeolidioidea
	Family	Aeolidiidae
	Genus	Aeolidia
	Species	Aeolidia filomenae Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016

	Classification according to Bouchet et al. (2017) Taxonomic source: World Register of Marine Species (AphiaID: 880371).

Description
The body is broad and relatively low, with the rear side of the foot tapered. The anterior side of the foot has tentaculiform corners. The body colour is variable, ranging from white, light beige, salmon to greenish. White or light brown spots are scattered all over the body. There could be a white “Y” shaped mark running from the oral tentacles, between the rhinophores down to the cardiac area, but the colour of this mark can be light brown and barely noticeable, and there could be white or beige spots covering it. The rhinophores are conical, blunt, and smooth and they are translucent with white or beige spots. The eyes are visible at the base of the rhinophores in lighter coloured specimens. The oral tentacles are long, translucent, with opaque white or beige spots like the rest of the body. Tips of tentacles are usually transparent but in some specimens they could be white. The cerata are flattened, broader at their base, and curved inwards. Those at the anterior and posterior sides of the body are smaller than those in the middle of the body. Between the rhinophores and the cardiac zone there are no cerata. The cerata have a lighter coloration than the rest of the body and have white tips. They are arranged in 16 oblique rows of up to 8 cerata each. The white–beige digestive gland is visible throughout the body by transparency. The anus is located between the ninth and tenth row of cerata on the right side. The gonopore is located between the fourth and fifth rows of cerata. Anatomically it is very similar to A. papillosa, but there are a few differences: The cerata of A. filomenae are more flattened, slightly hook shaped, and usually show a paler coloration than the rest of the body, whereas the cerata in A. papillosa are usually darker and more slender.

Biology
Like the species Aeolidia papillosa, that it has traditionally been confused with, it feeds on sea anemones. Before attacking its prey, it fully extends its sensory tentacles and secretes abundant mucus to protect itself against the stinging filaments projected by the anemone when it feels in danger. The spawn consists of a string of a few millimeters in diameter with small capsules containing white eggs (occasionally pink) arranged in a spiral. The planktonic larvae disperse after hatching. The type specimen was found under seaweed of the genus Laminaria at a depth of 6 m.

Etymology

Aeolidia from Aeolis, the Greek god of the Wind.
Filomenae, dedicated to Matilde Filomena López González, born in Galicia (Spain), grandmother of Marta Pola, one of the authors who described this species.

Distribution
It is found on the Atlantic coast of the Iberian Peninsula and on the Atlantic coast of France. Specimens have also been found in the Netherlands and around the British Isles. The study of the species reveals that the specimens from several localities from the Atlantic coast of Europe, previously attributed to A. papillosa (Carmona et al., 2013), belong to a different species. The accepted variability in the colour pattern of the former species masked the existence of a second and pseudocryptic European species of this genus.

Known georeferenced records of the species: Aeolidia filomenae
Sources:
: OBIS : GROC 2010-2011 : Enric Madrenas : João Pedro Silva : Bernard Picton : GBIF.ORG	: OPK : VIMAR : Manuel Ballesteros. : M@re Nostrum : Altres fonts : Marine Regions

Abundance

Western Mediterranean:	☆☆☆☆☆
Eastern Mediterranean:	☆☆☆☆☆
Atlantic Ocean:	★☆☆☆☆

Month

This chart displays the monthly observation probability for Aeolidia filomenae based on our own records.

More pictures

Aeolidia filomenae @ Cabo Home, Galicia by Carlos Fernández-Cid

Aeolidia filomenae @ Netherlands 7-03-2017 by Stefan Verheyen

Aeolidia filomenae @ Netherlands 26-01-2017 by Stefan Verheyen

Aeolidia filomenae feeding on anemone @ Netherlands 21-04-2017 by Stefan Verheyen

Aeolidia filomenae head detail @ Netherlands 21-04-2017 by Stefan Verheyen

Aeolidia filomenae with spawn @ Netherlands 26-04-2017 by Stefan Verheyen

Aeolidia filomenae @ Netherlands 30-03-2018 by Stefan Verheyen

Aeolidia filomenae @ Netherlands 29-03-2018 by Stefan Verheyen

Aeolidia filomenae @ Netherlands 21-04-2018 by Stefan Verheyen

Bibliography

Steve Long, 2006

Bibliography of Opisthobranchia 1554-2000

Gary McDonald, 2009

Bibliographia Nudibranchia

Further reading

Cite this article as:

Pontes, Miquel, Manuel Ballesteros, Enric Madrenas (2023) "Aeolidia filomenae" in OPK-Opistobranquis. Published: 15/06/2016. Accessed: 23/09/2023. Available at (https://opistobranquis.info/en/?p=22184)

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Aeolidia filomenae