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Caridea
The Caridea, commonly known as caridean shrimp or true shrimp, are an infraorder of shrimp within the order Decapoda. This infraorder contains all species of true shrimp. They are found widely around the world in both fresh and salt water. Many other animals with similar names – such as the mud shrimp of Axiidea and the boxer shrimp of Stenopodidea – are not true shrimp, but many have evolved features similar to true shrimp. Biology Carideans are found in every kind of aquatic habitat, with the majority of species being marine. Around a quarter of the described species are found in fresh water, however, including almost all the members of the species-rich family Atyidae and the Palaemonidae subfamily Palaemoninae. They include several commercially important species, such as ''Macrobrachium rosenbergii'', and are found on every continent except Antarctica. The marine species are found at depths to , and from the tropics to the polar regions. In addition to the great variety in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp
Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are referred to as "shrimp". More narrow definitions may be restricted to Caridea, to smaller species of either group or to only the marine species. Under a broader definition, ''shrimp'' may be synonymous with prawn, covering stalk-eyed swimming crustaceans with long, narrow muscular tails (abdomens), long whiskers ( antennae), and slender legs. Any small crustacean which resembles a shrimp tends to be called one. They swim forward by paddling with swimmerets on the underside of their abdomens, although their escape response is typically repeated flicks with the tail driving them backwards very quickly. Crabs and lobsters have strong walking legs, whereas shrimp have thin, fragile legs which they use primarily for perching.Rudloe & Rudloe (2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physetocaris
''Physetocaris'' is a monotypic genus of caridean shrimp, containing a single species, ''Physetocaris microphthalma''. Systematics ''Physetocaris microphthalma'' is placed in its own family (Physetocarididae) and superfamily (Physetocaridoidea). The genus and species were described in 1940 by Fenner A. Chace Jr. Description Adults have no eyes, and are missing the last segment of the first pereiopod, which is therefore unable to form a claw. They also have reduced gills and mouthparts, and no exopods on the pereiopods. The carapace is enlarged, and forms a tall rostrum. Distribution ''P. microphthalma'' is rare, with only 35 specimens counted in a 1985 review. Although very poorly known, the distribution of ''Physetocaris'' appears to be very wide. In addition to specimens from both western and eastern parts of the Atlantic Ocean, it has been found in the southern Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It exte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campylonotoidea
Campylonotoidea is a superfamily of shrimp, containing the two families Campylonotidae and Bathypalaemonellidae. Fenner A. Chace considered it to be the sister group to the much larger superfamily Palaemonoidea, with which it shares the absence of endopods on the pereiopods, and the fact that the first pereiopod is thinner than the second. Using molecular phylogenetics, Bracken ''et al.'' proposed that Campylonotoidea may be closer to Atyoidea. There are sixteen described species in 3 genera; no fossils are known. *Campylonotidae Sollaud, 1913 **''Campylonotus'' Bate, 1888 *Bathypalaemonellidae Bathypalaemonellidae is a family of crustaceans belonging to the order Decapoda The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crabs, lobste ... de Saint Laurent, 1985 **'' Bathypalaemonella'' Balss, 1914 **'' Bathypalaemonetes'' Cleva, 2001 References Caridea Arthropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stenopodidea
The Stenopodidea or boxer shrimps are a small group of decapod crustaceans. Often confused with Caridea shrimp or Dendrobranchiata prawns, they are neither, belonging to their own group. Anatomy They can be differentiated from the Dendrobranchiata prawns by their lack of branching gills, and by the fact that they brood their eggs instead of directly releasing them into the water. They differ from the Caridea shrimp by their greatly enlarged third pair of legs. Taxonomy Stenopodidea belongs to the order Decapoda, and is most closely related to the Caridea and Procarididea infraorders of shrimp. The cladogram below shows Stenopodidea's relationships to other relatives within Decapoda, from analysis by Wolfe ''et al.'', 2019. There are 71 extant species currently recognized within Stenopodidea, divided into 12 genera. Three fossil species are also recognized, each belonging to a separate genus. The earliest fossil assigned to the Stenopodidea is '' Devonostenopus pennsylvan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decapoda
The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crabs, lobsters, crayfish, shrimp and prawns. Most decapods are scavengers. The order is estimated to contain nearly 15,000 species in around 2,700 genera, with around 3,300 fossil species. Nearly half of these species are crabs, with the shrimp (about 3,000 species) and Anomura including hermit crabs, porcelain crabs, squat lobsters (about 2500 species) making up the bulk of the remainder. The earliest fossil decapod is the Devonian ''Palaeopalaemon''. Anatomy Decapods can have as many as 38 appendages, arranged in one pair per body segment. As the name Decapoda (from the Greek , ', "ten", and , '' -pod'', "foot") implies, ten of these appendages are considered legs. They are the pereiopods, found on the last five thoracic segments. In many decapods, one pair of these "legs" has enlarged pincers, called chelae, with the legs be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psalidopus
''Psalidopus'' is a genus of shrimp placed in its own family, Psalidopodidae, and superfamily, Psalidopodoidea. It comprises three species, one in the western Atlantic Ocean, and two in the Indo-Pacific. ''Psalidopus barbouri'' ''P. barbouri'' occurs on continental and insular slopes from Florida, the Bahamas and the Gulf of Mexico, to parts of the Caribbean Sea, perhaps extending as far south as Suriname. ''P. barbouri'' lives on steeply sloping soft muddy bottoms, sometimes mixed with sand, at depths of 400–800 m, where the temperature ranges from . Adults have a carapace length of , with the total length of the animal, from the tip of the rostrum to the tip of the tail, being up to 5.5 times longer than the carapace. ''Psalidopus huxleyi'' ''P. huxleyi'' occurs on continental and insular slopes across the Indian Ocean, including the Laccadive Sea, off southern India, the Andaman Sea and the Timor Sea, as well as in the western Pacific Ocean from southern Japan to the P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atyidae
Atyidae is a family of shrimp, present in all tropical and most temperate waters of the world. Adults of this family are almost always confined to fresh water. This is the only family in the superfamily Atyoidea. Genera and species The following classification follows De Grave ''et al.'' (2010), with subsequent additions. *'' Antecaridina'' Edmondson, 1954 *'' Archaeatya'' Villalobos, 1959 *''Atya'' Leach, 1816 *'' Atyaephyra'' de Brito Capello, 1867 *'' Atydina'' Cai, 2010 *'' Atyella'' Calman, 1906 *''Atyoida'' Randall, 1840 *''Atyopsis'' Chace, 1983 *'' Australatya'' Chace, 1983 *'' Caridella'' Calman, 1906 *''Caridina'' H. Milne-Edwards, 1837 *'' Caridinides'' Calman, 1926 *'' Caridinopsis'' Bouvier, 1912 *''Delclosia'' Rabadà, 1993 † *'' Dugastella'' Bouvier, 1912 *'' Edoneus'' Holthuis, 1978 *''Elephantis'' Castelin, Marquet & Klotz, 2013 *'' Gallocaris'' Sket & Zakšek, 2009 *''Halocaridina'' Holthuis, 1963 *'' Halocaridinides'' Fujino & Shokita, 1975 *'' Jolivetya'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galatheacaridoidea
''Galatheacaris abyssalis'' is a rare species of shrimp, now thought to be a larval stage of another genus, '' Eugonatonotus''. It was described in 1997 on the basis of a single specimen caught in the Celebes Sea at a depth of . It was seen to be so different from previously known shrimp species that a new family, Galatheacarididae, and superfamily, Galatheacaridoidea, were erected for it. Later, more specimens were found in the stomach of a lancetfish, ''Alepisaurus ferox''. The species shares some plesiomorphies with ''Procaris'', and the two taxa were thought to be closely related. Molecular phylogenetic analyses showed that ''Galatheacaris abyssalis'' had such similar mitochondrial DNA to that of ''Eugonatonotus chacei'' that the two must be considered conspecific; it is now thought that ''Galatheacaris'' is the megalopa Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form. Each of the stages is s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplophoridae
The family Oplophoridae is a taxon of pelagic shrimp and the only subtaxon of the superfamily Oplophoroidea. It contains the following genera: *''Acanthephyra'' A. Milne-Edwards, 1881 *'' Ephyrina'' Smith, 1885 *'' Heterogenys'' Chace, 1986 *'' Hymenodora'' Sars, 1877 *'' Janicella'' Chace, 1986 *'' Kemphyra'' Chace, 1986 *'' Meningodora'' Smith, 1882 *'' Notostomus'' A. Milne-Edwards, 1881 *† '' Odontochelion'' Garassino, 1994 *'' Oplophorus'' H. Milne-Edwards, 1837 *'' Systellaspis'' Bate, 1888 *† '' Tonellocaris'' Garassino, 1998 Molecular phylogenetics suggests that the family as currently circumscribed is polyphyletic A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of converg ..., and may lead to the resurrection of a family Acanthephyridae for all genera except ''Oplophorus'', ''Syst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaemonoidea
Palaemonoidea is a large superfamily of shrimp, containing nearly 1,000 species. The position of the family Typhlocarididae is unclear, although the monophyly of a group containing the remaining seven families is well supported. *Anchistioididae Borradaile, 1915 * Desmocarididae Borradaile, 1915 *Euryrhynchidae Holthuis, 1950 *Gnathophyllidae Dana, 1852 *Hymenoceridae Ortmann, 1890 *Kakaducarididae Bruce, 1993 *Palaemonidae Rafinesque, 1815 *Typhlocarididae Annandale & Kemp, 1913 Image:Gnathophyllum americanum Réunion.JPG, ''Gnathophyllum americanum'', a Palaemonidae Image:Harlequin Shrimp 1.jpg, ''Hymenocera picta'', the only Hymenoceridae Image:Emperor Shrimp - Periclimenes imperator.jpg, ''Periclimenes imperator'', a Palaemonidae Image:Typhlocaris ayyaloni cropped.jpg, ''Typhlocaris ayyaloni'', a Typhlocarididae ''Typhlocaris'' is a genus of blind cave-dwelling shrimp, placed in its own family, Typhlocarididae. It contains 4 species: *''Typhlocaris ayyaloni ''Typhlo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pandaloidea
The Pandaloidea are a superfamily of shrimp, comprising the large family Pandalidae The family Pandalidae is a taxon of caridean shrimp. These species are commonly called pandalid shrimp. They are edible and have high economic value. They are characterised by the subdivided carpus of the second pereiopod and, mainly, by the la ... (about 200 species) and the much smaller Chlorotocellidae (seven species). References Caridea Arthropod superfamilies {{Caridea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Processoidea
The Processidae are a family of shrimp, comprising 65 species in five genera, and the only family in the superfamily Processoidea. They are small, nocturnal animals, mostly living in shallow seas, particularly on grass flats. The first pereiopods are usually asymmetrical, with a claw on one, but not the other ('' Ambidexter'' forming the exception to this rule). The rostrum is generally a simple projection from the front of the carapace A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tor ..., with two teeth, one at the tip, and one further back. References Caridea Decapod families Taxa named by Arnold Edward Ortmann {{Caridea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
