Redescription of Parantipathes euantha (Pasternak, 1958) (Anthozoa: Antipatharia) from Kurile-Kamchatka Trench

Abstract

A redescription of the deep-sea antipatharian Parantipathes euantha (Pasternak, 1958) from the Kurile-Kamchatka Trench is provided. P. euantha differs from the species previously reported in the genus by its less densely set pinnules, which are arranged in semispiral groups of three and by its large polyps up to 2.5–3 mm in transversal diameter. Some details of the microscopical anatomy of P. euantha and also the composition and geographical distribution of the genus Parantipathes Brook, 1889 are discussed. The key for 7 species of the genus Parantipathes is provided.