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Red sea fingers is similar in shape to Alcyonium digitatum but is usually blood red or rust coloured. The finger-shaped lobes are slender and can be up to thirty centimetres long. The polyps are white and each one has eight pinnate tentacles which give the colony a feathery appearance when they are extended. [2]
Denise's pygmy seahorse uses adaptive camouflage, changing its color to match that of the surrounding gorgonians. [4] It feeds on small crustaceans and other zooplankton. [6] An individual will stay on a single coral for the duration of its entire life. The species is ovoviviparous, and it is the male who broods the eggs in its ventral brood pouch.
The pygmy seahorse is both tiny and well camouflaged.It is very difficult to spot amongst the sea grasses, soft corals, or gorgonians (sea fans) that it inhabits. Other distinctive pygmy seahorse characteristics include a fleshy head and body, a very short snout, and a long, prehensile tail.
The two main subclasses of Anthozoa are the Hexacorallia, members of which have six-fold symmetry and includes the stony corals, sea anemones, tube anemones and zoanthids; and the Octocorallia, which have eight-fold symmetry and includes the soft corals and gorgonians (sea pens, sea fans and sea whips), and sea pansies.
Some gorgonians contain algae, or zooxanthellae. This symbiotic relationship assists in giving the gorgonian nutrition by photosynthesis. Gorgonians possessing zooxanthellae are usually characterized by brownish polyps. Gorgonians are found primarily in shallow waters, though some have been found at depths of several thousand feet.
Leptogorgia virgulata is a colonial coral averaging about 20 cm (8 in) in height, usually between 15 and 60 cm as an adult, but sometimes reaching 1 metre (3.3 ft). It does not have the rigid calcium carbonate skeleton possessed by the true corals but its stalks have an internal, axial skeleton which is stiffened by sclerites and covered by an outer layer, the coenenchyme.
Alcyonium digitatum (dead man's fingers) Alcyonium glomeratum (red sea fingers) ... Eunicella verrucosa (broad sea fan, pink sea fan, warty gorgonian) Family Plexauridae
Briareum asbestinum, commonly known as the corky sea finger, is a species of a soft coral in the family Briareidae. [1] It inhabits coral reefs and rocky bottoms in the Caribbean, Bahamas, and Florida, often growing to 30 cm at depths of one to 40 metres.