|
Paragrapsus Quadridentatus
''Paragrapsus'' is a genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ... of crabs from South Eastern Australia, containing the following species: *'' Paragrapsus gaimardii'' (H. Milne-Edwards, 1837) *'' Paragrapsus laevis'' (Dana, 1851) *'' Paragrapsus quadridentatus'' (H. Milne-Edwards, 1837) *'' Paragrapsus urvillei'' (H. Milne-Edwards, 1853) was later referred to as part of the genus Helice by Tesch in 1918, but is listed as the accepted name by others. References Grapsoidea Fauna of Australia {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paragrapsus Laevis
''Paragrapsus laevis'' is a species of crab found in south eastern Australia, from southern Queensland to around the South Australian border, including Tasmania. It is commonly known as the mottled shore crab. Carapace is up to around 35 to 40mm across, with two notches in each side behind the eye, and has two well defined lobes. Claws are reddish on top, whitish underneath. ''Paragrapsus laevis'' individuals are redder and a little smaller than ''Paragrapsus gaimardii'' individuals. Males have significantly large claws compared to females. It lives on tidal shores, in sheltered bays or in estuaries, but not far inland. It can be found in mangroves in burrows and under debris or rocks. ''Chasmagnathus laevis'', ''Paragrapsus verreauxi'' are previous synonyms of ''Paragrapsus laevis''. References Grapsoidea {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paragrapsus Quadridentatus
''Paragrapsus'' is a genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ... of crabs from South Eastern Australia, containing the following species: *'' Paragrapsus gaimardii'' (H. Milne-Edwards, 1837) *'' Paragrapsus laevis'' (Dana, 1851) *'' Paragrapsus quadridentatus'' (H. Milne-Edwards, 1837) *'' Paragrapsus urvillei'' (H. Milne-Edwards, 1853) was later referred to as part of the genus Helice by Tesch in 1918, but is listed as the accepted name by others. References Grapsoidea Fauna of Australia {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Milne-Edwards
Henri Milne-Edwards (23 October 1800 – 29 July 1885) was an eminent French zoologist. Biography Henri Milne-Edwards was the 27th child of William Edwards, an English planter and colonel of the militia in Jamaica and Elisabeth Vaux, a Frenchwoman. Henri was born in Bruges, in present-day Belgium, where his parents had retired; Bruges was then a part of the newborn French Republic. His father had been jailed for several years for helping some Englishmen in their escape to their country. Henri spent most of his life in France. He was brought up in Paris by his older brother Guillaume Frederic Edwards (1777–1842), a distinguished physiologist and ethnologist. His father was released after the fall of Napoleon. The whole family then moved to Paris. At first he turned his attention to medicine, in which he graduated as an MD at Paris in 1823. His passion for natural history soon prevailed, and he gave himself up to the study of the lower forms of animal life. He became a stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus '' Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should cl ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paragrapsus Gaimardii
''Paragrapsus'' is a genus of 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 th ...s from South Eastern Australia, containing the following species: *'' Paragrapsus gaimardii'' (H. Milne-Edwards, 1837) *'' Paragrapsus laevis'' (Dana, 1851) *'' Paragrapsus quadridentatus'' (H. Milne-Edwards, 1837) *'' Paragrapsus urvillei'' (H. Milne-Edwards, 1853) was later referred to as part of the genus Helice by Tesch in 1918, but is listed as the accepted name by others. References Grapsoidea Fauna of Australia {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paragrapsus Urvillei
''Paragrapsus'' is a genus of crabs from South Eastern Australia, containing the following species: *''Paragrapsus gaimardii'' (H. Milne-Edwards, 1837) *''Paragrapsus laevis'' (Dana, 1851) *''Paragrapsus quadridentatus ''Paragrapsus'' is a genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and ...'' (H. Milne-Edwards, 1837) *'' Paragrapsus urvillei'' (H. Milne-Edwards, 1853) was later referred to as part of the genus Helice by Tesch in 1918, but is listed as the accepted name by others. References Grapsoidea Fauna of Australia {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helice (crab)
''Helice'' is a genus of crabs, containing four species: *''Helice formosensis'' Rathbun, 1931 *''Helice latimera'' Parisi, 1918 *'' Helice tientsinensis'' Rathbun, 1931 *''Helice tridens ''Helice tridens'' is a species of crab which lives on mudflats around the coasts of Japan and the Korean Peninsula. Ecology It is semi-terrestrial, returning to the sea to spawn. The species appears to be adversely affected by the presence of ...'' (De Haan, 1835) References Grapsoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grapsoidea
The Grapsoidea are a superfamily of crabs; they are well known and contain many taxa which are terrestrial (land-living), semiterrestrial (taking to the sea only for reproduction), or limnic (living in fresh water). Another well-known member with a more conventional lifestyle is the Chinese mitten crab, ''Eriocheir sinensis''. The delimitation of the Grapsidae and Plagusiidae is in need of revision; the latter at least is not monophyletic. The same apparently holds true for several genera in the Sesarmidae. The closest living relatives of the Grapsoidea are the Ocypodoidea The Ocypodoidea, or ocypoid crabs, are a superfamily of crabs, named after the genus '' Ocypode''. It contains over 300 extant species in these eight families: * Camptandriidae Stimpson, 1858 * Dotillidae Stimpson, 1858 * Heloeciidae H. Miln .... In fact, they seem to be paraphyletic with respect to each other and it seems warranted to merge the Ocypodoidea into the Grapsoidea. References Exter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Crab")