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Brittle stars are a moderately popular invertebrate in fishkeeping. They can easily thrive in marine tanks; in fact, the micro brittle star is a common "hitchhiker" that will propagate and become common in almost any saltwater tank, if one happens to come along on some live rock.
Amphiuridae (commonly called long-armed burrowing brittle stars [2] or burrowing brittle stars) are a large family of brittle stars of the suborder Gnathophiurina.Some species are used to study echinoderm development (e.g. Amphipholis kochii [3] and Amphioplus abditus [4]) and bioluminescence (the dwarf brittle star, Amphipholis squamata [5] [6]).
Amphiodia occidentalis, the long-armed brittle star, is a species of brittle star belonging to the family Amphiuridae. It is found in the Eastern Pacific coast from Alaska to USA, [2] often on the seafloor within intertidal and subtidal zones. Within these areas, it is often found buried a few centimeters under the sand with 2 or 3 arms ...
Ophiothrix spiculata, the western spiny brittle star, is a species of marine invertebrate in the order Ophiurida. It is found along the Pacific coast of North and South America from below the San Francisco Bay to Peru . [ 1 ]
For bodily movement, the tips of the tube feet are extended forwards by bending them at right angles at the base. They are then straightened as the brittle star raises itself onto the points. [7] By repeating these actions, the brittle star can creep forward at up to 50 centimetres (20 in) per minute. Any arm or pair of arms can be in the lead. [4]
Ophiocomella alexandri, known as Alexander's spiny brittle star or banded brittle star, is a species of marine brittle star. It was first described to science by Theodore Lyman in 1860. [ 1 ] Lyman states in his description that the animal is named for his friend, Alexander E. R. Agassiz , the son of Lyman's mentor, Louis Agassiz .
As all brittle stars, Schayer’s brittle star undergoes a process of metamorphoses throughout their life cycle, starting from planktotrophy and moving to brooded lecithotrophy. The larva of a Schayer’s brittle star is bilaterally symmetrical, with a ciliated band around the body.
Ophiothrix suensoni, Suenson's brittle star or the sponge brittle star, is a species of marine invertebrate in the order Ophiurida. It is found in the Caribbean Sea and Gulf of Mexico. It is included in the subgenus Acanthophiothrix making its full scientific name Ophiothrix (Acanthophiothrix) suensoni. [1]