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The blue color of the skeleton (which is covered with a layer of brown polyps) is caused by iron salts. Blue coral can be used in tropical aquaria, and the crystalline calcareous fibres in the skeletons can be used for jewelry. Individual polyps have eight feathery tentacles and, in the gastrovascular cavity, eight septa, or partitions. Cilia ...
An inhabitant of coral reefs and sea grass beds, this species is relatively common and is typically found in sparse density throughout its range. Blue stars live subtidally, or sometimes intertidally, on fine (sand) or hard substrata and move relatively slowly (mean locomotion rate of 8.1 cm/min). [1]
Octocorallia (also known as Alcyonaria) is a class of Anthozoa comprising over 3,000 species [1] of marine organisms formed of colonial polyps with 8-fold symmetry. It includes the blue coral, soft corals, sea pens, and gorgonians (sea fans and sea whips) within three orders: Alcyonacea, Helioporacea, and Pennatulacea. [2]
The species heliopora coerulea is also known as "blue coral". [2] Species. Currently, the species known to be part of the genus Heliopora are: [1]
Montipora flabellata, known by the common name blue rice coral, is a species of coral in the family Acroporidae. It is found growing on coral reefs in tropical parts of the Indian and Pacific Oceans. It is known to be endemic to the Hawaiian Islands.
Blue coral snake venom has only occasionally caused human deaths. [6] This species has unusually long venom glands, extending to 25% of the length of the body. [6] The venom contains a neurotoxin, Calliotoxin, that causes near instantaneous paralysis by delaying inactivation of the prey's sodium channels. [7]
Colpophyllia is a genus of stony corals in the family Mussidae.It is monotypic with a single species, Colpophyllia natans, commonly known as boulder brain coral or large-grooved brain coral. [2]
Consequently, the term "gorgonian coral" is commonly handed to multiple species in the order Alcyonacea that produce a mineralized skeletal axis (or axial-like layer) composed of calcite and the proteinaceous material gorgonin only and corresponds to only one of several families within the formally accepted taxon Gorgoniidae (Scleractinia).