Isopoda is an order of crustacean, which includes woodlice and their relatives. Members of this group are called Isopods and include both terrestrial and aquatic species. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen that are used in respiration. Females brood their young in a pouch under their thorax.
Flabellifera is a former suborder of isopod crustaceans. It is a polyphyletic or paraphyletic group, and contained over 3000 species. Its members are now placed in the Sphaeromatidea and Cymothoida.
Sphaeromatidae is a family of isopods, often encountered on rocky shores and in shelf waters in temperate zones. The family includes almost 100 genera and 619 known marine species. Within these genera, there are groups that share distinctive morphologies; further research may reclassify these genus-groups as separate families.
Curassanthura is a genus of isopod crustaceans in the family Leptanthuridae. It contains the following species:
Anthuroidea is a superfamily of isopod crustaceans, formerly treated as a suborder, Anthuridea. The group is characterised by "an elongate cylindrical body form, without dorsal coxal plates, and with a uropodal exopod attached to the peduncle proximally and dorsally". There are more than 500 described species in 57 genera, arranged across six families:
Pentidotea wosnesenskii is a marine isopod which lives on seaweed on rocky shores along the British Columbia and Washington coastlines, as far south as San Francisco. It can often be found hiding under rockweed in the intertidal zone, and can be found in depths up to 919 metres (3,015 ft). It was described as Idotea wosnesenskii in 1851, by Johann Friedrich von Brandt, and is named after the Russian biologist Ilya G. Voznesensky. The isopod grows up to 4 centimetres in length and is usually green in colour.
The Idoteidae are a family of isopod crustaceans. It includes these genera:
The Leptanthuridae are a family of isopod crustaceans, containing the following genera:
Sphaeromatidea is a suborder of isopod crustaceans.
Phoratopus remex is a species of isopod crustaceans known from only two specimens, and first described in 1925 by Herbert Matthew Hale (1895–1963). It lives on the continental shelf at Encounter Bay and Fowlers Bay, South Australia. It is so unlike all other isopods that it is placed in its own family, Phoratopodidae and suborder, Phoratopidea.
Chiridotea is a genus of isopod crustaceans in the family Chaetiliidae, containing the following species:
The Chaetiliidae are a family of isopod crustaceans in the suborder Valvifera, comprising these genera:
Saduria is a genus of benthic isopod crustaceans in the family Chaetiliidae, containing the following species:
Serolidae is a family of isopod crustaceans, containing the following genera :
The Arcturidae are a family of marine isopod crustaceans in the suborder Valvifera. Members of the family resemble woodlice and are found globally in cooler areas in shallow seas.
Brucerolis is a genus of isopods in the family Serolidae, found in the Southern Ocean.
Brucerolis nowra is a species of isopods in the family Serolidae, found in marine waters off Nowra in New South Wales.
Brucerolis bromleyana is a benthic species of isopods in the family Serolidae, found in the Southern Ocean.
Leptanthura is a genus of isopod crustaceans in the family Leptanthuridae. It was first described in 1897 by Georg Ossian Sars and the type species is Paranthura tenuis. It is found in coastal waters throughout the world, and contains the following species:
Ulakanthura is a genus of isopod crustaceans within the family Leptanthuridae, containing 7 species.
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