Korsaranthus natalensis (Carlgren, 1938) nov comb. (Cnidaria : Actiniaria)a mobile sea anemone attacking octocorals

In-situ observations and photographs of an unusual and spectacular red and white striped, mobile anemone, which appears to feed on gorgonians on subli ttoral habitats on the south and east coasts of South Africa, prompted a cl oser examination of two preserved specimens. The specimens are identical wi th Condylactis natalensis Carlgren, 1938, which was described from a single preserved specimen and has not since been reported. The redescription of t he species indicates that a new genus, Korsaranthus, is required to accommo date it within the family Actiniidae. Most significant characteristics of K . natalensis are the lack of p-mastigophores in its cnidome and the folded, distal-most part of its actinopharynx, features that compare with members of order Ptychodactiaria, which are predators of octocorals, too.