The snakelocks anemone prefers a brightly lit seaweed rich area of rocky reef in shallow water. It has approximately 200 very sticky tentacles, usually a rich green in colour with purple tips. They are unusual because they cannot retract their tentacles. It is found in rock pools on the lower shores and attached to rocks down to a depth of 20m. It likes exposed areas and is often found in areas of strong current.
The snakelocks anemone is common on all southern and western coasts of Ireland.