Asellota
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Asellota
Asellota is a suborder of isopod crustaceans found in marine and freshwater environments. Roughly one-quarter of all marine isopods belong to this suborder. Members of this suborder are readily distinguished from other isopods by their complex copulatory apparatus. Other characteristics include six-jointed antennal peduncle, the styliform uropods (a character shared with some other isopod groups), the fusion of pleonites 5, 4 and sometimes 3 to the pleotelson, and absence of the first pleopod in females. Classification The suborder Asellota comprises these families: Some classifications also include the Microcerberidea within Asellota. Janiroidea Sars, 1897 *Acanthaspidiidae Menzies, 1962 * Dendrotiidae Vanhöffen, 1914 *Desmosomatidae Sars, 1899 * Echinothambematidae Menzies, 1956 *Haplomunnidae Wilson, 1976 *Haploniscidae Hansen, 1916 *Ischnomesidae Hansen, 1916 *Janirellidae Menzies, 1956 *Janiridae Sars, 1897 * Joeropsis Koehler, 1885http://www.marinespecies.org/aphia.php? ...
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Isopoda
Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. 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. Isopods have various feeding methods: some eat dead or decaying plant and animal matter, others are grazers, or filter feeders, a few are predators, and some are internal or external parasites, mostly of fish. Aquatic species mostly live on the seabed or bottom of freshwater bodies of water, but some taxa can swim for a short distance. Terrestrial forms move around by crawling and tend to be found in cool, moist places. Some species are able to roll themselves into a ball as a defense mechanism or to conserve moisture. There are over 10,000 identified species of isopod worldwide, with around 4,50 ...
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Asellus Aquaticus
''Asellus aquaticus'' is a freshwater crustacean resembling a woodlouse. It is known by various common names including pond slater, water louse, aquatic sowbug, water hoglouse and cress bug. Ecology ''Asellus aquaticus'' is common throughout the temperate zone including Europe, Russia, and North America. It is found in rivers, streams and standing water, particularly where there are plenty of stones under which it hides, but it is not found where the water is strongly acidic. It is a detritivore. ''Asellus aquaticus'' is relatively tolerant of a range of pollutants and has been used as an indicator of water quality. Life cycle and reproduction ''Asellus aquaticus'' can breed throughout the year, if the temperature is high enough: they do not breed under cold temperatures. Maturity can be reached in few months under warm summer temperatures, but maturation may take as much as two years in permanently cold water bodies (e.g., high-latitude or mountain waters). Life span varies sim ...
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Asellidae
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 family includes these genera: *''Asellus'' Geoffroy, 1762 *'' Baicalasellus'' Stammer, 1932 *'' Bragasellus'' Henry & Magniez, 1968 *'' Caecidotea'' Packard, 1871 *'' Calasellus'' Bowman, 1981 *'' Chthonasellus'' Argano & Messana, 1991 *'' Columbasellus'' Lewis, Martin & Wetzer, 2003 *'' Gallasellus'' *'' Lirceolus'' Bowman & Longley, 1976 *''Lirceus ''Lirceus'' is a genus of Isopoda, isopod crustaceans in the family Asellidae that live in southern Canada and the eastern United States as far west as the Great Plains. Of the 15 species in the genus, two are listed as either endangered species ...'' Rafinesque-Schmaltz, 1820 *'' Mancasellus'' Harger, 1876 *'' Nipponasellus'' Matsumoto, 1962 *'' Phreatoasellus'' Matsumoto, 1962 *'' Phreatosasellus'' Matsomoto, 1962 *'' Proasellus'' Dudich, 1925 *'' Psamm ...
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Janiridae
Janiridae is a family of isopods in the order Isopoda. There are more than 20 genera and 190 described species in Janiridae. Genera These 25 genera belong to the family Janiridae: * '' Austrofilius'' Hodgson, 1910 * '' Caecianiropsis'' Menzies & Pettit, 1956 * '' Caecijaera'' Menzies, 1951 * '' Carpias'' Richardson, 1902 * '' Ectias'' Richardson, 1906 * '' Hawaianira'' Miller, 1967 * '' Heterias'' Richardson, 1904 * '' Iais'' Bovallius, 1886 * '' Ianirella'' * '' Ianiropsis'' G.O.Sars, 1897 * '' Ianisera'' Kensley, 1976 * '' Iathrippa'' Bovallius, 1886 * '' Iolella'' Richardson, 1905 * ''Jaera ''Jaera'' is a genus of isopods in the family Janiridae Janiridae is a family of isopods in the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on l ...'' Leach, 1814 * '' Janaira'' Moreira & Pires, 1977 * '' Janira'' Leach, 1814 * '' Janiralata'' Menzies, 1951 * '' Janthura'' Wolff, 1962 * ...
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Macrostylidae
Macrostylidae is a family of crustaceans belonging to the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, an .... Genera: * '' Desmostylis'' Brandt, 1992 * '' Macrostylis'' Sars, 1864 References {{Taxonbar, from=Q4355776 Isopoda ...
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Katianiridae
Katianiridae is a family of crustaceans belonging to the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, an .... Genera: * '' Katianir'' Hansen, 1916 * '' Natalianira'' Kensley, 1984 References {{Taxonbar, from=Q6502950 Isopoda ...
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Joeropsididae
Joeropsididae is a family of crustaceans belonging to the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, an .... Genera: * '' Joeropsis'' Koehler, 1885 * '' Rugojoeropsis'' Just, 2001 * '' Scaphojoeropsis'' Just, 2001 References {{Taxonbar, from=Q6502834 Isopoda ...
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Janirellidae
Janirellidae is a family of crustaceans belonging to the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, an .... Genera: * '' Dactylostylis'' Richardson, 1911 * '' Janirella'' Bonnier, 1896 * '' Triaina'' Just, 2009 References {{Taxonbar, from=Q6502489 Isopoda ...
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Ischnomesidae
Ischnomesidae is a family of isopods belonging to the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, an .... Genera: * '' Contrarimesus'' Kavanagh & Wilson, 2007 * '' Cornuamesus'' Kavanagh & Wilson, 2007 * '' Fortimesus'' Kavanagh & Wilson, 2007 * '' Gracilimesus'' Kavanagh & Wilson, 2007 * '' Haplomesus'' Richardson, 1908 * '' Heteromesus'' Richardson, 1908 * '' Ischnomesus'' Richardson, 1908 * '' Mixomesus'' Wolff, 1962 * '' Stylomesus'' Wolff, 1956 References {{Taxonbar, from=Q6502644 Isopoda ...
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Haploniscidae
Haploniscidae is a family of isopods belonging to the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, an .... Genera: * '' Abyssoniscus'' Birstein, 1971 * '' Antennuloniscus'' Menzies, 1962 * '' Aspidoniscus'' Menzies & Schultz, 1968 * '' Chandraniscus'' George, 2004 * '' Chauliodoniscus'' Lincoln, 1985 * '' Haploniscus'' Richardson, 1908 * '' Hydroniscus'' Hansen, 1916 * '' Mastigoniscus'' Lincoln, 1985 References {{Taxonbar, from=Q4398821 Isopoda ...
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Haplomunnidae
Haplomunnidae is a family of crustaceans belonging to the order Isopoda Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, an .... Genera: * '' Abyssaranea'' Wilson & Hessler, 1974 * '' Haplodendron'' Just, 2003 * '' Haplomunna'' Richardson, 1908 * '' Munella'' Bonnier, 1896 * '' Thylakogaster'' Wilson & Hessler, 1974 References {{Taxonbar, from=Q4399838 Isopoda ...
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