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Majoidea
The Majoidea are a Superfamily (taxonomy), superfamily of crabs which includes the various spider crabs. Taxonomy In "''A classification of living and fossil genera of decapod crustaceans''" De Grave and colleagues divided Majoidea into six families: * Family Epialtidae ** Subfamily Epialtinae ** Subfamily Pisinae ** Subfamily Pliosomatinae ** Subfamily Tychiinae * Family Hymenosomatidae * Family Inachidae * Family Inachoididae * Family Majidae ** Subfamily Eurynolambrinae ** Subfamily Majinae ** Subfamily Micromaiinae ** Subfamily Mithracinae ** Subfamily Planoterginae * Family Oregoniidae The classification has since been revised, with subfamilies Epialtinae and Mithracinae being elevated to families and Hymenosomatidae being moved to its own superfamily. The family composition according to the World Register of Marine Species is as follows: * family Epialtidae MacLeay, 1838 * family Inachidae MacLeay, 1838 * family Inachoididae Dana, 1851 * family Macrocheiridae Dana, 1851 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period. Description Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a pair of chelae (claws). Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to . Several other groups of crustaceans with similar appearances – such as king crabs and porcelain crabs – are not true crabs, but have evolved features similar to true crabs through a process known as carcinisation. Environment Crabs are found in all of the world's oceans, as well as in fresh w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Spider Crab
The Japanese spider crab (''Macrocheira kaempferi'') is a species of marine crab that lives in the waters around Japan. It has the largest known leg-span of any arthropod. It goes through three main larval stages along with a prezoeal stage to grow to its great size. The genus ''Macrocheira'' contains multiple species. Two fossil species of this genus have been found, ''M. ginzanensis'' and ''M. yabei'', both from the Miocene of Japan. Its diverse taxonomic history is an important part of what these creatures are and how they evolved to be what they are today. They are sought by crab fisheries, and are considered a delicacy in Japan. Conservation efforts aim to protect these creatures and their population from overfishing. The Japanese spider crab is similar in appearance to the much smaller European spider crab ''(Maja squinado)'', though the latter, while within the same superfamily, belongs to a different family, the Majidae. Description The Japanese spider crab has the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Majidae
Majidae is a family of crabs, comprising around 200 marine species inside 52 genera, with a carapace that is longer than it is broad, and which forms a point at the front. The legs can be very long in some species, leading to the name "spider crab". The exoskeleton is covered with bristles to which the crab attaches algae and other items to act as camouflage. Genera The roughly 200 extant and over 50 extinct species are divided among 52 genera in 5 subfamilies: '' Eurynolambrinae'' Števčić, 1994 *'' Eurynolambrus'' H. Milne-Edwards & Lucas, 1841 '' Majinae'' Samouelle, 1819 *'' Ageitomaia'' Griffin & Tranter, 1986 *'' Anacinetops'' Miers, 1879 *''Choniognathus'' Rathbun, 1932 *'' Cyclax'' Dana, 1851 *'' Entomonyx'' Miers, 1884 *''Eurynome'' Leach, 1814 *'' Jacquinotia'' Rathbun, 1915 *'' Kasagia'' Richer de Forges & Ng, 2007 *'' Kimbla'' Griffin & Tranter, 1986 *''Leptomithrax'' Miers, 1876 *'' Maiopsis'' Faxon, 1893 *'' Maja'' Lamarck, 1801 *'' Majella'' Ortmann, 1893 *'' M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libinia Emarginata
''Libinia emarginata'', the portly spider crab, common spider crab or nine-spined spider crab, is a species of stenohaline crab that lives on the Atlantic coast of North America. Distribution ''Libinia emarginata'' occurs from Nova Scotia to the Florida Keys and through the Gulf of Mexico. It lives at depths of up to , with exceptional records of up to . Description ''Libinia emarginata'' is roughly triangular in outline and very heavily calcified, with a carapace about long and a leg span of . The whole crab is khaki, and the carapace is covered in spines and tubercles, and, as with other decorator crabs, often clothes itself in debris and small invertebrates. Reproduction Mating takes place, and eggs are produced from June to September. The eggs are initially a bright orange-red, but turn brown during development, which takes around 25 days. The eggs then hatch as zoea larvae, and the female can produce another brood of eggs within 12 hours, unlike many other crab species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macropodia Rostrata
''Macropodia rostrata'', common names, the common spider crab, long-legged spider crab, long-legged crab, is a species of marine crab in the family Inachidae. The Macropodia Rostrata visually mimics many other types of small crabs with the exception of its long legs. By attaching algae to their thin legs, they can be confused with the stem of seaweed. This is both a defense mechanism and a predatory advantage, as unsuspecting fish will hide in seaweed beds from nearby predators. This behavior can be absent among larger crabs, and those that live at great depths like giant Japanese spider crabs. Description ''Macropodia rostrata'' has a hairy, or fuzzy appearance due to algae it applies to itself for camouflage. Both the carapace and pereiopods of this species are greyish to yellowish or reddish-brown in colour, with some specimens showing white markings. The carapace grows to a maximum length of 16 (28) mm, with the anterior part is narrowing, giving it a pear shape. The length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyas (genus)
''Hyas'' is a genus of oregoniid crabs. Species ''Hyas'' comprises five extant species: *'' Hyas alutaceus'' Brandt, 1851 *'' Hyas araneus'' (Linnaeus, 1758 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', the sta ...) *'' Hyas coarctatus'' Leach, 1815 *'' Hyas lyratus'' Dana, 1851 *'' Hyas ursinus'' Rathbun, 1924 References External links * Majoidea Decapod genera Taxa named by William Elford Leach {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inachidae
Inachidae is a family of crabs, containing 39 genera: *'' Achaeopsis'' Stimpson, 1857 *'' Achaeus'' Leach, 1815 *'' Anisonotus'' A. Milne-Edwards, 1879 *'' Anomalothir'' Miers, 1879 *'' Bothromaia'' Williams & Moffitt, 1991 *'' Calypsachaeus'' Manning & Holthuis, 1981 *'' Camposcia'' Latreille, 1829 *'' Capartiella'' Manning & Holthuis, 1981 *'' Chalaroacheus'' De Man, 1902 *'' Chorinachus'' Griffin & Tranter, 1986 *'' Coryrhynchus'' Kingsley, 1879 *'' Cyrtomaia'' Miers, 1886 *'' Dorhynchus'' Wyville Thomson, 1873 *'' Dumea'' Loh & Ng, 1999 *'' Encephaloides'' Wood-Mason & Alcock, 1891 *'' Ephippias'' Rathbun, 1918 *'' Ergasticus'' A. Milne-Edwards, 1882 *'' Ericerodes'' Rathbun, 1897 *'' Erileptus'' Rathbun, 1893 *'' Eucinetops'' Stimpson, 1860 *'' Eurypodius'' Guérin, 1825 *'' Grypacheus'' Alcock, 1895 *''Inachus In Greek mythology, Inachus, Inachos or Inakhos ( Ancient Greek: Ἴναχος) was the first king of Argos after whom a river was called Inachus River,Apollod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inachoididae
Inachoididae is a family of crabs originally erected by James Dwight Dana James Dwight Dana FRS FRSE (February 12, 1813 – April 14, 1895) was an American geologist, mineralogist, volcanologist, and zoologist. He made pioneering studies of mountain-building, volcanic activity, and the origin and structure of continent ... in 1852. It was not recognised as a valid family until the early 1980s. Its members closely resemble those of the family Inachidae, and the Inachoididae could be recognised as a subfamily of that family. *'' Aepinus'' Rathbun, 1897 *'' Anasimus'' A. Milne-Edwards, 1880 *'' Arachnopsis'' Stimpson, 1871 *'' Batrachonotus'' Stimpson, 1871 *'' Collodes'' Stimpson, 1860 *'' Euprognatha'' Stimpson, 1871 *'' Inachoides'' H. Milne-Edwards & Lucas, 1842 *'' Leurocyclus'' Rathbun, 1897 *'' Paradasygyius'' Garth, 1958 *'' Pyromaia'' Stimpson, 1871 References Majoidea Decapod families {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Spider Crab
The great spider crab, ''Hyas araneus'', is a species of crab found in northeast Atlantic waters and the North Sea, usually below the tidal zone. In 1986, two specimens were captured at the South Shetland Islands off the Antarctic Peninsula The Antarctic Peninsula, known as O'Higgins Land in Chile and Tierra de San Martín in Argentina, and originally as Graham Land in the United Kingdom and the Palmer Peninsula in the United States, is the northernmost part of mainland Antarctic ..., apparently transported by human agency. It has been feared that the species would have an adverse effect on the native fauna, but there have been no further captures from the region since the 1986 specimens. The great spider crab can moult and get rid of their outer shell/skin. This can take some time but it lets them grow to great size. After they moult they are very vulnerable to predators because of a very soft exoskeleton. References Majoidea Crabs of the Atlantic Ocean Crustacean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oregoniidae
The Oregoniidae are a family of crabs, formerly included in the family Majidae. It contains the four genera ''Chionoecetes'', ''Hyas Hyas ( grc, Ὑάς, Hūás, ; ), in Greek mythology, was a Boeotian who was regarded as the ancestor of the ancient Hyantes (Boeotians). His name means rain from ''hyô, hyetos.'' Family Hyas was the son of the Titan Atlas and either of the ...'', '' Macroregonia'', and '' Oregonia''. References Majoidea Decapod families {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pisinae
Pisinae is a subfamily of crabs in the family Epialtidae, comprising the following genera: * '' Acanthophrys'' A. Milne-Edwards, 1865 * '' Anamathia'' Smith, 1885 * '' Apias'' Rathbun, 1897 * '' Apiomithrax'' Rathbun, 1897 * '' Austrolibinia'' Griffin, 1966 * '' Chorilia'' Dana, 1851 * '' Chorilibinia'' Lockington, 1877 * '' Chorinus'' Latreille, 1825 * '' Delsolaria'' Garth, 1973 * '' Doclea'' Leach, 1815 * '' Garthinia'' Richer de Forges & Ng, 2009 * '' Giranauria'' Griffin & Tranter, 1986 * '' Goniopugettia'' Sakai, 1986 * '' Guinotinia'' Richer de Forges & Ng, 2009 * ''Herbstia'' H. Milne-Edwards, 1834 * '' Holoplites'' Rathbun, 1894 * ''Hoplophrys'' Henderson, 1893 * '' Hoploplites'' Rathbun, 1894 * ''Hyastenus'' White, 1847 * ''Lahaina'' Dana, 1851 * '' Laubierinia'' Richer de Forges & Ng, 2009 * '' Lepidonaxia'' Targioni-Tozzetti, 1872 * '' Lepteces'' Rathbun, 1893 * '' Leptomaia'' Griffin & Tranter, 1986 * '' Libidoclaea'' H. Milne-Edwards & Lucas, 1842 * ''Libinia'' Leach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epialtinae
Epialtinae is a subfamily of crabs, containing the following genera: * ''Acanthonyx'' Latreille, 1828 * '' Alfredalcockia'' Števčić, 2005 * '' Antilibinia'' MacLeay, 1838 * '' Cyclonyx'' Miers, 1879 * '' Epialtoides'' Garth, 1958 * '' Epialtus'' H. Milne-Edwards, 1834 * '' Esopus'' A. Milne-Edwards, 1875 * '' Eupleurodon'' Stimpson, 1871 * ''Goniothorax'' A. Milne-Edwards, 1878 * '' Griffinia'' Richer de Forges, 1994 * '' Huenia'' De Haan, 1837 * '' Leucippa'' H. Milne-Edwards, 1833 * '' Lophorochinia'' Garth, 1969 * '' Menaethiops'' Alcock, 1895 * '' Menaethius'' A. Milne-Edwards, 1834 * ''Mimulus'' Stimpson, 1860 * '' Mocosa'' Stimpson, 1871 * '' Perinia'' Dana, 1851 * ''Pugettia'' Dana, 1851 * '' Sargassocarcinus'' Ward, 1936 * '' Simocarcinus'' Miers, 1879 * ''Taliepus'' A. Milne-Edwards, 1878 * '' Xenocarcinus'' White, 1847 ''Incertae sedis'' * ''Acanthonyx elongatus'' White, 1847 (''nomen nudum In taxonomy, a ''nomen nudum'' ('naked name'; plural ''nomina nuda'') is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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