Ring-tentacle anemoneThe ring-tentacle anemone is a species of sea anemone in the family Isanthidae. This anemone was first described in 1938 by the Swedish zoologist, Oskar Carlgren.DescriptionThe ring-tentacle anemone grows up to 1 cm in diameter. It is a small solitary anemone with numerous short striped tentacles and having stripes radiating out from its mouth. It is usually brown or greenish and its body column is smooth.DistributionIt has so far been found only on the Atlantic coast of the Cape Peninsula of South Africa. It appears to be endemic to this area, and lives from the intertidal zone down to about 5m under water.EcologyThis anemone is found between rocks and on seaweeds. It feeds on plankton.