Korsaranthus is a genus of sea anemones in the family Actiniidae.[1] It is monotypic, being represented by the single species Korsaranthus natalensis, commonly known as the spinnaker anemone or the candy-striped anemone.
The spinnaker anemone is a medium-sized anemone of up to 10 cm in diameter. It is a vividly coloured red and white striped anemone. Its column has fine striping. It has about 50 broadly striped tentacles. Red and pink lines radiate outwards from its mouth. It has a walking disc which is red with white striping.[2]
The spinnaker anemone is endemic to the South African coast, from False Bay to Durban. It is found in waters from 10 m to at least 30 m in depth.
This is a rare species of anemone. It is mobile and may be observed, when not attached to the reef, using its parachute-like walking disc to sail to new locations. It preys on octocorals.