Actiniidae is the largest family of sea anemones, to which most common, temperate, shore species belong. Most members of this family do not participate in symbioses with fishes. Three exceptions are the bubble-tip anemone (with anemonefish and certain cardinalfish), snakelocks anemone (with Incognito goby) and Urticina piscivora (with painted greenling). The systematics of Actiniidae is often quite difficult. The problem with identification of genera within this family is that most species are readily distinguishable when alive but when fixated lose their color and some other features. Arrangement of tentacles is important in defining genera for Actiniaria families. There may be one tentacle per space between mesenteries or there may be more than one tentacle between each two mesenteries. Members of the family Actiniidae have one tentacle per space. Genera Genera in this family include: Actinia Linnaeus, 1767 Actinioides Haddon & Shackleton, 1893 Actinopsis Actinostella Anemonia Risso, 1826 Antheopsis Simon, 1892 Anthopleura Duchassaing de Fonbressin & Michelotti, 1860 Anthostella Carlgren, 1938 Asteractis Verrill, 1869 Aulactinia Verrill, 1864 Bolocera Gosse, 1860 Boloceropsis McMurrich, 1904 Bunodactis Verril, 1899 Bunodosoma Verrill, 1899 Cladactella Verrill, 1928 Condylactis Duchassaing de Fombressin & Michelotti, 1864 Cribrina Hemprich & Ehrenberg in Ehrenberg, 1834 Cribrinopsis Carlgren, 1922 Dofleinia Wassilieff, 1908 Entacmaea Ehrenberg, 1834 Epiactis Verrill, 1869 Glyphoperidium Roule, 1909 Gyractis Boveri, 1893 Gyrostoma Kwietniewski, 1898 Isactinia Carlgren, 1900 Isanemonia Carlgren, 1950 Isantheopsis Carlgren, 1942 Isoaulactinia Belém, Herrera & Schlenz, 1996 Isosicyonis Carlgren, 1927 Isotealia Carlgren, 1899 Korsaranthus Riemann-Zurneck, 1999 Leipsiceras Stephenson, 1918 Macrodactyla Haddon, 1898 Mesactinia England, 1987 Myonanthus McMurrich, 1893 Neocondylactis England, 1987 Neoparacondylactis Zamponi, 1974 Onubactis Lopez-Gonzalez, den Hartog & Garcia-Gomez, 1995 Oulactis Milne Edwards & Haime, 1851 Parabunodactis Carlgren, 1928 Paracondylactis Carlgren, 1934 Paranemonia Carlgren, 1900 Parantheopsis McMurrich, 1904 Paratealia Mathew & Kurian, 1979 Phialoba Carlgren, 1949 Phlyctenactis Stuckey, 1909 Phlyctenanthus Carlgren, 1949 Phyllactis Milne Edwards & Haime, 1851 Phymactis Milne Edwards, 1857 Phymanthea Pseudactinia Carlgren, 1928 Spheractis England, 1992 Stylobates Dall, 1903 Synantheopsis England, 1992 Tealianthus Carlgren, 1927 Urticina Ehrenberg, 1834 Urticinopsis Carlgren, 1927 References External links Anthopleura sola Images Actinioidea Taxa named by Constantine Samuel Rafinesque Cnidarian families