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Stylasteridae
Stylasteridae, also known as lace corals, is a family (biology), family of colonial hydrozoans with a calcified skeleton. They first appeared 65 million years ago in deep waters. About 10% of the species have adapted to shallow water. In shallow reefs they can grow up to 25 cm tall × 30 cm wide, but some species in deeper waters can reach 1 meter. Genera According to the World Register of Marine Species, the following genus, 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'' Lind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylaster Nobilis
''Stylaster nobilis'', the noble coral, is a branching colonial Hydrozoa, hydroid in the family (biology), family Stylasteridae. Description Noble corals are pink or orange and tree-like with paler tips to the colony's branches. The calcareous colonies may grow to over 25 cm in total height, while individual polyps are 0.1 cm in diameter.Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. ''Two Oceans: a guide to the marine life of southern Africa'' There is no free medusa stage. The polyps project from star-shaped cavities in the rigid calcareous skeleton. Growth occurs at the tips and on the outside surface, which gradually thickens and which may show concentric rings in section. Colour and shape variation File:Noble corals at Mushroom Pinnacle DSC06533.jpg, Two colour morphs at Oudekraal, on the Cape Peninsula File:Noble coral at Vulcan Rock DSC00860.jpg, Occasionally ''S. nobilis'' will develop a more encrusting structure File:Two colour morphs of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
