4/B – Yellow cluster anemone -  Parazoanthus axinellae

Very common on corallogenic beds, both superficial and deep, always in poorly illuminated areas. The name comes from the fact that it very often (but not exclusively) lives epibiontically on sponges of the Axinella genus. Its single polyps, generally 10-15 mm long, are lined up on an elongated base, its tentacles, ranging in number from 25 to 35, are thin and simple. Its color is very beautiful and bright: from bright orange or yellow particularly at the top, to yellowish-brown or a grayish color in the base.