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Grapsidae
The Grapsidae are a family of crabs known variously as marsh crabs, shore crabs, or talon crabs. The family has not been confirmed to form a monophyletic group and some taxa may belong in other families. They are found along the shore among rocks, in estuaries, marshes, and in some cases pelagic among drifting seaweeds and flotsam. Genera A number of taxa, formerly treated as subfamilies of the family Grapsidae are now considered families in their own right, including the Varunidae and Plagusiidae. Ten genera remain in the family, two of them known only from fossils: *''Geograpsus'' Stimpson, 1858 *'' Goniopsis'' De Haan, 1833 *''Grapsus'' Lamarck, 1801 *'' Leptograpsodes'' Montgomery, 1931 *''Leptograpsus'' H. Milne Edwards, 1853 *'' Litograpsus'' † Schweitzer & Karasawa, 2004 *''Metopograpsus'' H. Milne Edwards, 1853 *'' Miograpsus'' † Fleming, 1981 *''Pachygrapsus'' Randall, 1840 *''Planes Plane(s) most often refers to: * Aero- or airplane, a powered, fixed-wing aircra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptograpsus
''Leptograpsus variegatus'', known as the purple rock crab, is a marine large-eyed crab of the family Grapsidae, found in southern subtropical Indo-Pacific Oceans. It grows to around shell width. It is the only species in the genus ''Leptograpsus''. __TOC__ Taxonomy ''Leptograpsus variegatus'' was first described in 1793 as ''Cancer. variegatus''. In 1803, ''C. variegatus'' was moved to the ''Grapsus'' genus and became ''Grapsus variegatus''. In 1818, 1842 and 1852, ''L. variegatus'' was described again as ''Grapsus personatus'', ''Grapsus strigilatus'' and ''Grapsus planifrons''. In 1853, Henri Milne-Edwards erected the ''Leptograpsus'' genus and used ''G. variegatus'' as the type taxon.MILNE EDWARDS, H. 1853. Memoire sur Ia famille des ocypodiens. Annales des Sciences Naturelles, Zoologie (3), 20: 165–228, pis 6–11. In his publication, Milne-Edwards recognized ''G. personatus'', ''G. strigilatus and G. planifrons'' to be synonyms of ''L. variegatus''. Milne-Edwards a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grapsidae
The Grapsidae are a family of crabs known variously as marsh crabs, shore crabs, or talon crabs. The family has not been confirmed to form a monophyletic group and some taxa may belong in other families. They are found along the shore among rocks, in estuaries, marshes, and in some cases pelagic among drifting seaweeds and flotsam. Genera A number of taxa, formerly treated as subfamilies of the family Grapsidae are now considered families in their own right, including the Varunidae and Plagusiidae. Ten genera remain in the family, two of them known only from fossils: *''Geograpsus'' Stimpson, 1858 *'' Goniopsis'' De Haan, 1833 *''Grapsus'' Lamarck, 1801 *'' Leptograpsodes'' Montgomery, 1931 *''Leptograpsus'' H. Milne Edwards, 1853 *'' Litograpsus'' † Schweitzer & Karasawa, 2004 *''Metopograpsus'' H. Milne Edwards, 1853 *'' Miograpsus'' † Fleming, 1981 *''Pachygrapsus'' Randall, 1840 *''Planes Plane(s) most often refers to: * Aero- or airplane, a powered, fixed-wing aircra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geograpsus
''Geograpsus'' is a genus of crabs in the family Grapsidae The Grapsidae are a family of crabs known variously as marsh crabs, shore crabs, or talon crabs. The family has not been confirmed to form a monophyletic group and some taxa may belong in other families. They are found along the shore among rocks ..., containing four extant species, and one extinct species: *'' Geograpsus crinipes'' (Dana, 1851) *'' Geograpsus grayi'' (H. Milne-Edwards, 1853) *'' Geograpsus lividus'' (H. Milne-Edwards, 1837) *'' Geograpsus stormi'' De Man, 1895 *† '' Geograpsus severnsi'' Paulay & Starmer, 2011 References Grapsidae {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagusiidae
The Plagusiidae are a family of crabs, formerly treated as a subfamily of the family Grapsidae, but have since been considered sufficiently distinct to be a family in their own right. The family Plagusiidae includes the subfamily Plagusiinae, comprising the genera ''Percnon'' and '' Plagusia'', which constitute a widespread group of litophilic, intertidal and subtidal crabs that are notorious for their speed and their agility. Six genera are included in the family: *''Davusia'' Guinot, 2007 *'' Euchirograpsus'' H. Milne-Edwards, 1853 *'' Guinusia'' Schubart & Cuesta, 2010 *'' Miersiograpsus'' Türkay, 1978 *''Percnon ''Percnon'' is a genus of crabs. It is "doubtfully placed" in the family Plagusiidae, and it has also been included in the family Grapsidae. Species Seven species are recognised: *''Percnon abbreviatum'' (Dana, 1851) *''Percnon affine'' (Henri ...'' Gistel, 1848 *'' Plagusia'' Latreille, 1804 References Grapsoidea Decapod families {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planes (genus)
''Planes'' is a genus of crabs in the family Grapsidae that currently comprises three extant species: ''Planes minutus'' (Linnaeus, 1758), ''Planes marinus'' Rathbun, 1914, and ''Planes major'' (=''cyaneus'') (MacLeay, 1838). A further fossil species is known from the Middle Miocene of the Caucasus The Caucasus () or Caucasia (), is a region between the Black Sea and the Caspian Sea, mainly comprising Armenia, Azerbaijan, Georgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range, have historically .... References Grapsidae Extant Miocene first appearances {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pachygrapsus
''Pachygrapsus'' is a genus of small shore crabs. Recent genetic data suggest this genus to be possibly 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 conver .... It comprises the following species: *'' Pachygrapsus corrugatus'' ( von Martens, 1872) *'' Pachygrapsus crassipes'' Randall, 1840 *'' Pachygrapsus fakaravensis'' Rathbun, 1907 *'' Pachygrapsus gracilis'' ( Saussure, 1858) *'' Pachygrapsus laevimanus'' Stimpson, 1858 *'' Pachygrapsus loveridgei'' Chace, 1966 *'' Pachygrapsus marmoratus'' ( Fabricius, 1787) *'' Pachygrapsus maurus'' (Lucas, 1846) *'' Pachygrapsus minutus'' A. Milne-Edwards, 1873 *'' Pachygrapsus planifrons'' De Man, 1888 *'' Pachygrapsus plicatus'' ( H. Milne-Edwards, 1837) *'' Pachygrapsus propinquus'' De Man, 1908 *'' Pachygrapsus socius'' St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metopograpsus
''Metopograpsus'' is a genus of crabs, containing the following extant species: *'' Metopograpsus frontalis'' Miers, 1880 *'' Metopograpsus latifrons'' (White, 1847) *'' Metopograpsus messor'' (Forsskål, 1775) *'' Metopograpsus oceanicus'' (Hombron & Jacquinot, 1846) *'' Metopograpsus quadridentatus'' Stimpson, 1858 *''Metopograpsus thukuhar The thukuhar shore-crab (''Metopograpsus thukuhar''), also known as alamihi crab, is a species of crab that lives in mangroves all over from Africa to Fiji. Distribution A mangrove inhabitant, it is found all over mangrove forests of Hawaii, Ma ...'' (Owen, 1839) A further extinct species is known. Gallery File:Metapograpssus latifrons.jpg, ''Metopograpsus latifrons'' from Karwar, India File:Metapograspus messor.jpg, ''Metopograpsus messor'' from India File:Metopograpsus spp.jpg, Unidentified species of ''Metopograpsus'' References Grapsidae Taxa named by Henri Milne-Edwards {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grapsus Grapsus
''Grapsus grapsus'' is one of the most common crabs along the western coast of the Americas. It is known as the red rock crab, or, along with crabs such as ''Percnon gibbesi'', as the Sally Lightfoot crab. Distribution ''Grapsus grapsus'' is found along the Pacific coast of Mexico, Central America, and South America (as far south as northern Peru), and on nearby islands, including the Galápagos Islands. It is also found along the Atlantic coast of South America, but is replaced in the eastern Atlantic Ocean ( Ascension Island and West Africa) by its congener ''Grapsus adscensionis''. Description ''Grapsus grapsus'' is a typically shaped crab, with five pairs of legs, the front two bearing small, blocky, symmetrical chelae (claws). The other legs are broad and flat, with only the tips touching the substrate. The crab's round, flat carapace is slightly longer than . Young ''G. grapsus'' are black or dark brown in colour and are camouflaged well on the black lava coasts of vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Varunidae
The Varunidae are a family of thoracotrematan crabs. The delimitation of this family, part of the taxonomically confusing Grapsoidea, is undergoing revision. For a long time, they were placed at the rank of subfamily in the Grapsidae, but they appear to be closest to '' Macropthalmus'' and the Mictyridae, which are usually placed in the Ocypodoidea. It may thus be better to merge the latter superfamily with the Grapsoidea, retaining the latter name as it is older. That notwithstanding, the revision of the Grapsoidea (in the narrow but apparently still paraphyletic sense) is also not fully completed, as many taxa remain to be restudied. Already, several former Grapsidae genera have been moved to the Varunidae, and others are tentatively placed here pending detailed study. Among the most noteworthy of these is the Chinese mitten crab, ''Eriocheir sinensis''. The genus '' Xenograpsus'', formerly included in the Varunidae, is now placed in its own family, the Xenograpsidae. The foll ... [...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] |
Grapsus
''Grapsus'' is a genus of lightfoot crabs, comprising the following species: *'' Grapsus albolineatus'' Latreille ''in'' Milbert, 1812 *'' Grapsus adscensionis'' ( Osbeck, 1765) *'' Grapsus fourmanoiri'' Crosnier, 1965 *''Grapsus grapsus'' (Linnaeus, 1758) *'' Grapsus granulosus'' Milne-Edwards, 1853 *'' Grapsus intermedius'' De Man, 1888 *'' Grapsus longitarsis'' Dana, 1851 *'' Grapsus tenuicrustatus'' ( Herbst, 1783) 'Grapsus' is a New Latin modification of Greek 'grapsaios' meaning 'crab'. Gallery File:Grapsus tenuicrustatus - hawaii - 2015-11-01.webm, ''Grapsus tenuicrustatus'' climbing on rocks in Hawaii File:Grapsus adscensionis1.jpg, ''Grapsus adscensionis'' at Tenerife File:Grapsus adscensionis - Tenerife 01.jpg, ''Grapsus adscensionis'' at Tenerife File:Sally lightfoot crabs at Lot's Wife's Ponds.jpg, ''Grapsus adscensionis'' at Saint Helena File:Grapsus albolineatus-1.jpg, ''Grapsus albolineatus'' at Karwar, India India, officially the Republic of India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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