Webbrittle star, also called serpent star, any of the 2,100 living species of marine invertebrates constituting the subclass Ophiuroidea (phylum … WebOphiothrix triglochis Müller & Troschel, 1842 [2] Ophiothrix fragilis is a species of brittle star in the order Ophiurida. It is found around the …
Ophiothrix suensoni - Wikipedia
Brittle stars, serpent stars, or ophiuroids (from Latin ophiurus 'brittle star'; from Ancient Greek ὄφις (óphis) 'serpent', and οὐρά (ourá) 'tail'; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms … See more The ophiuroids diverged in the Early Ordovician, about 500 million years ago. Ophiuroids can be found today in all of the major marine provinces, from the poles to the tropics. Basket stars are usually confined to the … See more Brittle stars use their arms for locomotion. Brittle stars move fairly rapidly by wriggling their arms which are highly flexible and enable the animals … See more Over 60 species of brittle stars are known to be bioluminescent. Most of these produce light in the green wavelengths, although a few blue-emitting species have also been discovered. Both shallow-water and deep-sea species of brittle stars are known to produce … See more Of all echinoderms, the Ophiuroidea may have the strongest tendency toward five-segment radial (pentaradial) symmetry. The body outline is … See more The sexes are separate in most species, though a few are hermaphroditic or protandric. The gonads are located in the disk, and open into pouches between the arms, called genital bursae. Fertilisation is external in most species, with the gametes being shed into the … See more Brittle stars live in areas from the low-tide level downwards. Six families live at least 2 m deep; the genera Ophiura, Amphiophiura, and … See more Between 2,064 and 2,122 species of brittle stars are currently known, but the total number of modern species may be over 3,000. This makes brittle stars the most abundant group of … See more http://bioweb.uwlax.edu/bio203/f2013/lee_abby/classification.htm peeps cereal ingredient list
ADW: Ophiothrix fragilis: CLASSIFICATION
WebOne of the larger brittle stars, Ophiocoma echinata can measure up to 32 mm in disk diameter and 150 mm in arm length. The spiny brittle star shares the characteristic body plan of echinoderms, with 5 arms that are well defined from the central disk. The aboral, or top, side of the star is dark brown and sometimes mottled with lighter hues. http://www.seawater.no/fauna/echinodermata/fragilis.html WebBrittle stars play a pretty important role in the food web. They are known as “seafloor ecosystem engineers,” meaning they reshape the sediment shape on the seafloor, which in turn influences the distribution of other seafloor … peeps chalk