Eunicella singularis - Tabarka - 18 cm in length. At the base of the gorgonian,  Parerythropodium coralloides.
habitat: rocky shores and  dark hard bottoms from 3 to 100 m deeep.
Gorgonians are, all over Mediterranean sea, threatenend species.
In Tunisia,  they remains frequent and abundant in several places , specially in the northern area.
Photos: J. ZAOUALI