Blue coral-worm reef. Port St Johns, Wild Coast, Eastern Cape (2021). Also known as Spirobranchus kraussii. Gregarious, building massive blue colonies of interwoven tubes which are calcareous (a feature of the family Serpulidae). Head with two rows of feathery branches and a stalked operculum that has two pointed 'wings' and a flat calcareous cap. Worms… Continue reading Blue coral-worm (Pomatoleios kraussii)