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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.
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.
Arubolana imula is a species of crustacean in the family Cirolanidae, endemic to Aruba. It was described in 1979 by Lazare Botosaneanu and Jan Hendrik Stock.
Mexistenasellus is a genus of isopod crustaceans in the family Stenasellidae.
Onchotelson is a genus of isopod crustaceans in the family Phreatoicidae, which is endemic to Tasmania. It contains two species, both of which are listed as vulnerable on the IUCN Red List:
Proasellus is a genus of isopod crustaceans in the family Asellidae. Two of its species, P. parvulus and P. slovenicus, are Slovenian endemics which are listed as vulnerable species on the IUCN Red List.
Speocirolana thermydronis is a species of crustacean in the family Cirolanidae. It is endemic to Mexico and only known from springs near Cuatro Ciénegas, Coahuila. Its habitat is threatened by irrigation.
Sphaerolana is a genus of isopod crustaceans in the family Cirolanidae, all of which are endemic to Mexico.
The Cymothoidae are a family of isopods in the suborder Cymothoida found in both marine and freshwater environments. Cymoithoids are ectoparasites, usually of fish, and they include the bizarre "tongue-biter", which attaches to a fish's tongue, causing it to atrophy, and replaces the tongue with its own body. Ceratothoa oestroides is one of the most devastating ectoparasites in Mediterranean aquaculture. Around 40 genera and more than 380 species of cymothoid are recognised. Species of the Cymothoidae are generally found in warmer waters and rarely in the cool and cold climates.
Ceratoserolis is a genus of isopods in the family Serolidae from the Southern Ocean around Antarctica and some Sub-Antarctic Islands. They prefer to live on soft bottoms and range of least between 24 and 950 m (80–3,120 ft) in depth. They are superficially similar to the unrelated, extinct trilobites and reach up to about 8 cm (3.1 in) in length. They were once considered to be part of the genus Serolis and for a long time only Ceratoserolis trilobitoides was recognized. The validity of the other species has been disputed, but there are some morphological and genetic differences between them and C. trilobitoides, and there are indications that additional, currently unrecognized species of Ceratoserolis exist.
The Asellidae are a family of isopod crustaceans, one of the largest families of freshwater isopods, living in both epigean and hypogean habitats in North America and Europe.
The Cirolanidae are a family of isopod crustaceans, including these genera:
Asellus is a genus of isopod crustaceans in the family Asellidae.
Phreatoasellus is a genus of isopod crustaceans in the family Asellidae. It contains the following species:
The Dajidae are a family of marine isopod crustaceans in the suborder Cymothoida. The original description was made by Giard and Bonnier in 1887. Members of this family are ectoparasites of krill. They resemble a fleshy growth on the krill's back, and make the host look as if it is wearing a rucksack. These genera are included in the family Dajidae:
Serolidae is a family of isopod crustaceans, containing the following genera :
Dynoides is a genus of isopod crustaceans in the family Sphaeromatidae, containing the following species:
Scleropactidae is a family of woodlice, with a predominantly Gondwanan distribution. It contains the following genera:
Nerocila is a genus of parasitic isopod crustaceans, with 11 species, which have been found parasitizing Indian marine fishes.
Sporolithon is a genus of red coralline algae in the family Sporolithaceae, in the order Corallinales.
References
- ↑ Marilyn Schotte (2010). "Synasellus Braga, 1944". World Marine, Freshwater and Terrestrial Isopod Crustaceans database. World Register of Marine Species . Retrieved September 14, 2014.
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