Parazoanthidae Delage & Herouard, 1901
Isozoanthus africanus Carlgren, 1923
Isozoanthus altisulcatus Carlgren, 1939
Isozoanthus arborenscens (Danielssen, 1890)
Isozoanthus arborescens Danielssen, 1890
Isozoanthus arenosus Carlgren, 1923
Isozoanthus bulbosus Carlgren, 1913
Isozoanthus capensis Carlgren, 1938
Isozoanthus davisi Carlgren, 1913
Isozoanthus dubius Carlgren, 1913
Isozoanthus giganteus Carlgren in Chun, 1903
Isozoanthus gilchristi Carlgren, 1938
Isozoanthus ingolfi Carlgren, 1913
Isozoanthus islandicus Carlgren, 1913
Isozoanthus magninsulosus Carlgren, 1913
Isozoanthus mirabilis Lewis, 1965
Isozoanthus multinsulosus Carlgren, 1913
Isozoanthus primnoidus Carreiro-Silva, Braga-Henriques, Sampaio, de Matos, Porteiro & Ocana, 2010
Isozoanthus sulcatus (Gosse, 1859)
Isozoanthus valdivae Carlgren, 1923
