Ophiothrix fragilis was created in 1789.
Ephedra fragilis was created in 1799.
Jocara fragilis was created in 1863.
Opuntia fragilis was created in 1819.
Phreatogammarus fragilis was created in 1882.
Cystopteris fragilis was created in 1753.
Limaria fragilis was created in 1791.
Atrina fragilis was created in 1777.
Patersonia fragilis was created in 1805.
Terestrombus fragilis was created in 1798.
Tasmantrix fragilis was created in 2010.
Pseudomunida fragilis was created in 1979.
Two of the best-known shallow species are the green brittle star (Ophioderma brevispina), found from Massachusetts to Brazil, and the common European brittle star (Ophiothrix fragilis). Deep-water species tend to live in or on the sea floor or adhere to coral or urchins. The most widespread species is the long-armed brittle star (Amphipholis squamata), a grayish or bluish species that is strongly luminescent.