Stylasteridae, also known as lace corals, is a family of colonial hydrozoans with a calcified skeleton.The First Deep-Sea Stylasterid (Hydrozoa, Stylasteridae) of the Red Sea - MDPI They first appeared 65 million years ago in deep waters. About 10% of the species have adapted to live in water less than deep. The rest are found in deeper water, most commonly between , with the deepest known species observed at a depth of .
In shallow reefs the Stylasteridae can grow up to tall and wide, but some species in deeper waters can reach .
Genera According to the World Register of Marine Species, the following genera belong to this family: Adelopora Cairns, 1982 Astya Stechow, 1921d Axoporella † Calyptopora Boschma, 1968 Cheiloporidion Cairns, 1983 Congregopora Nielsen, 1919 † Conopora Moseley, 1879 Crypthelia Milne Edwards & Haime, 1849 Cyclohelia Cairns, 1991 Distichopora Lamarck, 1816 Errina Gray, 1835 Errinopora Fisher, 1938 Errinopsis Broch, 1951 Gyropora Boschma, 1960 Inferiolabiata Broch, 1951 Lepidopora Pourtalès, 1871 Lepidotheca Cairns, 1983 Leptohelia Lindner, Cairns & Zibrowius, 2014 Paraerrina Broch, 1942 Phalangopora Kirkpatrick, 1887 Pliobothrus Pourtalès, 1868 Pseudocrypthelia Cairns, 1983 Sporadopora Moseley, 1879 Stellapora Cairns, 1983 Stenohelia Kent, 1870 Stephanohelia Cairns, 1991 Stylantheca Fischer, 1931 Stylaster Gray, 1831 Systemapora Cairns, 1991
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