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Flabellina affinis

Akhziv · 1998 · Photo: Boaz Liebes

Flabellina affinis (Gmelin, 1791)

Mediterranean violet aeolid

Israel · Mediterranean

Size
50 mm
Depth
to 50 m
Native range
Mediterranean (including the Israeli coast) and the eastern Atlantic from Portugal to the Canary Islands and Ghana

Description

One of the most commonly seen aeolids in the Mediterranean, a vivid purple species often found in groups on its hydroid prey. It was long confused with the very similar Flabellina ischitana.

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Identification

Bright violet to purple body. Dense clusters of cerata arise from raised stalks; each ceras has an opaque violet zone below the white tip that hides the digestive gland. Rhinophores purple with rings (annulate); oral tentacles long and purple.

Similar species

Flabellina ischitana has translucent cerata without the opaque violet band below the white tip; Edmundsella pedata has smooth rhinophores and cerata attached directly to the body.

Habitat & diet

Habitat

Rocky reefs among hydroid colonies, down to about 50 m.

Food

Hydroids of the genus Eudendrium.

Sources (2)
Flabellina affinis