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Description: Colonies are laminar and bifacial, sometimes forming contorted branches. Corallites are 3.5-4.5 millimetres diameter. Columellae are large, and paliform lobes are not well developed. Primary septa may be thick and are always exsert.
Similar Species: Echinopora horrida, which has similar corallite characters but is usually branching whereas E. gemmacea is usually laminar. See also E. hirsutissima.
Other Spezies:
Echinopora ashmorensis
Echinopora fruticulosa
Echinopora gemmacea
Echinopora hirsutissima
Echinopora horrida
Echinopora irregularis
Echinopora lamellosa
Echinopora mammiformis
Echinopora pacificus
Echinopora robusta
Echinopora tiranensis
Synonyms:
Echinastrea gemmacea (Lamarck, 1816)
Echinopora carduus Klunzinger, 1879
Echinopora concamerata Klunzinger, 1879
Echinopora ehrenbergi Milne Edwards & Haime, 1849
Echinopora rousseaui Milne Edwards & Haime, 1849
Echinopora solidior Milne Edwards & Haime, 1849
Explanaria gemmacea Lamarck, 1816
Explanaria hemprichii Ehrenberg, 1834
Orbicella mammilosa Klunzinger, 1879
Stephanocora hemprichii Ehrenberg, 1834
Classification: Biota > Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Hexacorallia (Subclass) > Scleractinia (Order) > Merulinidae (Family) > Echinopora (Genus) > Echinopora gemmacea (Species)