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Anomopoda
Anomopoda is an order of the superorder Diplostraca. These crustaceans, a type of water flea, are members of the class Branchiopoda. The Anomopoda typically have five pairs of thoracic limbs, but sometimes have six pairs. The head of the Anomopoda lacks a clear separation from the trunk and the posterior, while the abdomen area gradually merges with the anterior of the trunk. See also *''Daphnia'' - water fleas *''Rhynchochydorus ''Rhynchochydorus australiensis'' is a species of crustacean in the family Chydoridae. It is the only species in the genus ''Rhynchochydorus''. It is endemic to Australia Australia, officially the Commonwealth of Australia, is a sovere ...'' References Cladocera Freshwater crustaceans Arthropod suborders {{Branchiopoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplostraca
The Diplostraca or Cladocera, commonly known as water fleas, are a superorder of small crustaceans that feed on microscopic chunks of organic matter (excluding some predatory forms). Over 1000 species have been recognised so far, with many more undescribed. The oldest fossils of diplostracans date to the Jurassic, though their modern morphology suggests that they originated substantially earlier, during the Paleozoic. Some have also adapted to a life in the ocean, the only members of Branchiopoda to do so, even if several anostracans live in hypersaline lakes. Most are long, with a down-turned head with a single median compound eye, and a carapace covering the apparently unsegmented thorax and abdomen. Most species show cyclical parthenogenesis, where asexual reproduction is occasionally supplemented by sexual reproduction, which produces resting eggs that allow the species to survive harsh conditions and disperse to distant habitats. Description They are mostly long, with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladocera
The Diplostraca or Cladocera, commonly known as water fleas, are a superorder of small crustaceans that feed on microscopic chunks of organic matter (excluding some predatory forms). Over 1000 species have been recognised so far, with many more undescribed. The oldest fossils of diplostracans date to the Jurassic, though their modern morphology suggests that they originated substantially earlier, during the Paleozoic. Some have also adapted to a life in the ocean, the only members of Branchiopoda to do so, even if several anostracans live in hypersaline lakes. Most are long, with a down-turned head with a single median compound eye, and a carapace covering the apparently unsegmented thorax and abdomen. Most species show cyclical parthenogenesis, where asexual reproduction is occasionally supplemented by sexual reproduction, which produces resting eggs that allow the species to survive harsh conditions and disperse to distant habitats. Description They are mostly long, with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Flea
The Diplostraca or Cladocera, commonly known as water fleas, are a superorder of small crustaceans that feed on microscopic chunks of organic matter (excluding some predatory forms). Over 1000 species have been recognised so far, with many more undescribed. The oldest fossils of diplostracans date to the Jurassic, though their modern morphology suggests that they originated substantially earlier, during the Paleozoic. Some have also adapted to a life in the ocean, the only members of Branchiopoda to do so, even if several anostracans live in hypersaline lakes. Most are long, with a down-turned head with a single median compound eye, and a carapace covering the apparently unsegmented thorax and abdomen. Most species show cyclical parthenogenesis, where asexual reproduction is occasionally supplemented by sexual reproduction, which produces resting eggs that allow the species to survive harsh conditions and disperse to distant habitats. Description They are mostly long, with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daphnia Magna
''Daphnia magna'' is a small planktonic crustacean (adult length 1.5–5.0 mm) that belongs to the subclass Phyllopoda. Description ''D. magna'' is a typical water flea of the genus ''Daphnia''. The females reach up to 5 mm in size, the males about 2 mm, thus they are among the largest species in the genus. The body is protected by a translucent carapace made of chitin, a transparent polysaccharide. It has a ventral opening and five pairs of thoracic limbs, used to help the filtering process. Spike rows run along the back of the carapace. The intestine is hook-shaped and has two digestive ceca. The head has two antennae and a large compound eye. Adult females can be distinguished from those of otherwise similar species such as '' D. pulex'' by the absence of a comb on the abdominal claw and the presence of two distinct combs on the abdomen. The males are smaller than the females and have larger first antennas, a diagnostic feature that distinguishes them from s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Branchiopoda
Branchiopoda is a class of crustaceans. It comprises fairy shrimp, clam shrimp, Diplostraca (or Cladocera), Notostraca and the Devonian ''Lepidocaris''. They are mostly small, freshwater animals that feed on plankton and detritus. Description Members of the Branchiopoda are unified by the presence of gills on many of the animals' appendages, including some of the mouthparts. This is also responsible for the name of the group (from the grc, βράγχια, gills, akin to , windpipe; el, πούς, foot). They generally possess compound eyes and a carapace, which may be a shell of two valves enclosing the trunk (as in most Cladocera), broad and shallow (as in the Notostraca), or entirely absent (as in the Anostraca). In the groups where the carapace prevents the use of the trunk limbs for swimming (Cladocera, clam shrimp and the extinct Lipostraca), the antennae are used for locomotion, as they are in the nauplius. Male fairy shrimp have an enlarged pair of antennae with which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gondwanothrichidae
''Gondwanothrix halsei'' is a species of small crustaceans (ca. ) within the order Anomopoda, placed in its own family, Gondwanotrichidae. It exists in a macrotrichid habitus found in humic coastal dune lakes and swamps in southwest Western Australia. The species' type locality is Angove Lake in the Two Peoples Bay Nature Reserve Two Peoples Bay Nature Reserve is a protected area managed by the Department of Parks and Wildlife east of Albany, Western Australia. The area is accessible by 2WD vehicles. The bay itself, including two small secluded beaches, faces due eas ... (). References Cladocera Monotypic arthropod genera Branchiopoda genera {{Branchiopoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daphniidae
Daphniidae is a family of water fleas in the order Anomopoda. Description Members of the family Daphniidae differ from other, similar diplostracans, such as the Macrotrichidae and Moinidae, in that the antennae of females are short and immobile. Ecology The feeding mechanism of the members of the family Daphniidae differs from that of the Macrotrichidae in allowing the animals to engage in filter feeding, rather than having to scrape food from a surface. They have evolved to fill a number of different ecological niches. '' Scapholeberis'' and '' Megafenestra'' contain species adapted to living around the surface film; '' Simocephalus'' species cling to objects while filter feeding; others have developed a pelagic lifestyle. Taxonomy The family Daphniidae contains 121 species in five genera: *'' Ceriodaphnia'' Dana, 1853 *''Daphnia'' O. F. Müller, 1785 *'' Megafenestra'' Dumont & Pensaert, 1983 *'' Scapholeberis'' Schoedler, 1858 *'' Simocephalus'' Schoedler, 1858 The members ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daphnia
''Daphnia'' is a genus of small planktonic crustaceans, in length. ''Daphnia'' are members of the order Anomopoda, and are one of the several small aquatic crustaceans commonly called water fleas because their saltatory swimming style resembles the movements of fleas. ''Daphnia'' spp. live in various aquatic environments ranging from acidic swamps to freshwater lakes and ponds. The two most commonly found species of ''Daphnia'' are '' D. pulex'' (small and most common) and '' D. magna'' (large). They are often associated with a related genus in the order Cladocera: ''Moina'', which is in the Moinidae family instead of the Daphniidae, and is much smaller than ''D. pulex'' (roughly half the maximum length). Appearance and characteristics The body of a ''Daphnia'' species is usually long, and is divided into segments, although this division is not visible. The head is fused, and is generally bent down towards the body with a visible notch separating the two. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chydoridae
Chydoridae is a family of water fleas in the order Anomopoda. There are more than 50 genera and 520 described species in Chydoridae. Genera These 52 genera belong to the family Chydoridae: * '' Acroperus'' Baird, 1843 * '' Alona'' Baird, 1850 * '' Alonella'' G. O. Sars, 1862 * '' Alonopsis'' G. O. Sars, 1862 * '' Alpinalona'' Alonso & Sinev, 2017 * '' Anchistropus'' G. O. Sars, 1862 * '' Anthalona'' van Damme, Sinev & Dumont, 2011 * '' Archepleuroxus'' Smirnov & Timms, 1983 * '' Armatalona'' Sinev, 2004 * '' Australochydorus'' Smirnov & Timms, 1983 * '' Biapertura'' Smirnov, 1971 * '' Bryospilus'' Frey, 1980 * '' Camptocercus'' Baird, 1843 * '' Celsinotum'' Frey, 1991 * ''Chydorus'' Leach, 1816 * '' Coronatella'' Dybowski & Grochowski, 1894 * '' Dadaya'' G. O. Sars, 1901 * '' Disparalona'' Fryer, 1968 * '' Dumontiellus'' Smirnov, 2007 * '' Dunhevedia'' King, 1853 * '' Ephemeroporus'' Frey, 1982 * '' Ephmeroporus'' * '' Euryalona'' G. O. Sars, 1901 * ''Eurycercus'' Baird, 1843 * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurycercidae
''Eurycercus'' is a genus of crustaceans belonging to the suborder Anomopoda. It is the only genus in the monotypic family Eurycercidae. ''Eurycercus'' are relatively large anomopods, reaching sizes as large as . Species There are 16 species: Subgenus ''Eurycercus (Bullatifrons)'' Frey, 1975: * '' Eurycercus (Bullatifrons) longirostris'' Hann, 1982 * '' Eurycercus (Bullatifrons) macracanthus'' Frey, 1973 * '' Eurycercus (Bullatifrons) pompholygodes'' Frey, 1975 * '' Eurycercus (Bullatifrons) vernalis'' Hann, 1982 Subgenus ''Eurycercus (Eurycercus)'' Baird, 1843: * '' Eurycercus (Eurycercus) lamellatus'' (O.F. Müller, 1776) * '' Eurycercus (Eurycercus) microdontus'' Frey, 1978 Subgenus ''Eurycercus (Teretifrons)'' Frey, 1975: * '' Eurycercus (Teretifrons) glacialis'' Lilljeborg, 1887 * '' Eurycercus (Teretifrons) nigracanthus'' Hann, 1990 Subgenus not determined: * ''Eurycercus beringi'' Bekker, Kotov & Taylor, 2012 * ''Eurycercus cunninghami'' King, 1853 * ''Eurycercus lamellatus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchochydorus
''Rhynchochydorus australiensis'' is a species of crustacean in the family Chydoridae. It is the only species in the genus ''Rhynchochydorus''. It is endemic to Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma .... Sources Cladocera Branchiopoda genera Freshwater crustaceans of Australia Vulnerable fauna of Australia Monotypic arthropod genera Taxonomy articles created by Polbot {{Branchiopoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
