Aspect: A relatively short mass of randomly branching colonies that can take wide variety of shapes. Usually yellow brown, but also green. Population: Common Notable feature: Branches look like fingers. The entire structure is covered in a spectacularly dense array of translucent and hair-like stinging polyps. Environment: Usually atop boulders, at depths of around 10 metres or more. Behaviour: The barely visible hair-thin polyps can inflict very painful skin burns even through light conctact.
