Phelliactis Simon, 1892

Gusmão, Luciana C. & Rodríguez, Estefanía, 2021, Deep-Sea Anemones (Cnidaria: Anthozoa: Actiniaria) From The South Atlantic, Bulletin of the American Museum of Natural History 2021 (444), pp. 1-73 : 46

Genus Phelliactis Simon, 1892

DIAGNOSIS (modified from Carlgren, 1949; modifications in bold): Hormathiidae with well-developed pedal disc. Body often asymmetrical. Column divisible into scapus and scapulus; scapus with weaker or stronger cuticle and numerous irregularly arranged tubercles of varying sizes. Marginal sphincter mesogleal. Tentacles more than 100, fewer than mesenteries proximally, provided with strong mesogleal basal aboral thickenings; tentacles in two more or less distinct cycles. Longitudinal muscles of tentacles ectodermal. Oral disc wide, sometimes bilobed. Two well-developed siphonoglyphs. Six to eight pairs of perfect, sterile mesenteries. Single perfect supernumerary mesenteries often paired with imperfect ones. Retractors diffuse, rather weak. Parietobasilar musculature distinct but weak. Acontia well developed. Cnidom: spirocysts, basitrichs, p -mastigophores B1.

TYPE SPECIES: Phelliactis hertwigii Simon, 1892 .

VALID SPECIES: Phelliactis algoaensis Carlgren, 1928a ; P. americana Widersten, 1976 ; P. callicyclus Riemann-Zürneck, 1973 ; P. capensis Carlgren, 1938 ; P. capricornis Riemann-Zürneck, 1973 ; P. carlgreni Doumenc, 1975 ; P. coccinea ( Stephenson, 1918b) ; P. crassa ( Wassilieff, 1908) ; P. gigantea ( Carlgren, 1941a) ; P. hertwigii ; P. hydrothermala Sanamyan and Sanamyan, 2007 ; P. incerta Carlgren, 1934 ; P. japonica ( Wassilieff, 1908) ; P. lophohelia Riemann-Zürneck, 1973 ; P. magna ( Wassilieff, 1908) ; P. pelophila Riemann- Zürneck, 1973; P. pulchra ( Stephenson, 1918b) ; P. robusta Carlgren, 1928b ; P. siberutiensis Carlgren, 1928a ; P. somaliensis Carlgren, 1928a ; Phelliactis yapensis Li and Xu, 2016 .