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Platyxanthidae
Platyxanthus is a family 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 the ...s, containing the following genera: *'' Homalaspis'' A. Milne-Edwards, 1863 *'' Peloeus'' Eydoux & Souleyet, 1842 *'' Platyxanthus'' A. Milne-Edwards, 1863 References Eriphioidea {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyxanthus Crenulatus
''Platyxanthus crenulatus'' is a species of crab in the family Platyxanthidae Platyxanthus is a family 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 un .... The species is found along the sublittoral zone of the western Atlantic in the waters of Brazil, Uruguay and Argentina, associated mostly with hard bottoms. Adults are robust and conspicuous crabs, with a smooth carapace, dorsally purple and white ventrally. Their claws have marked heterochely and right-handedness (i.e. dimorphism between chelae and the tendency of bearing the major claw on the right-hand side of the body), traits associated with shell-breaking feeding habits. Due to its abundance, large size and diet, ''P. crenulatus'' presumably has an important ecological role as a predator in benthic communities. References Eriphioidea Cra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyxanthus
''Platyxanthus'' is a genus of crabs in the family Platyxanthidae, containing the following species: *'' Platyxanthus balboai'' Garth, 1940 *''Platyxanthus crenulatus ''Platyxanthus crenulatus'' is a species of crab in the family Platyxanthidae Platyxanthus is a family of crab Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, ...'' A. Milne-Edwards, 1879 *'' Platyxanthus orbignyi'' (H. Milne Edwards & Lucas, 1843) *'' Platyxanthus patagonicus'' A. Milne-Edwards, 1879 References Eriphioidea {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danièle Guinot
Danièle Guinot (born 1933) is a French biologist, an emeritus professor at the Muséum national d'histoire naturelle in France, known for her research on crabs. Biography Guinot was born in eastern France and educated at the University of Montpellier and the University of Paris, finishing her studies in 1955. She then joined the Muséum national d'histoire naturelle as a research assistant; she remained there for the rest of her career. She earned a doctorate from Pierre and Marie Curie University in 1977. Research Guinot carried out several studies of crabs from exotic environments, including deep-sea crabs from the Indo-West Pacific bathyal zone and from hydrothermal vents, and crabs living in caves in Papua New Guinea. Her doctoral thesis proposed a new classification system for certain crabs based on the position of their reproductive organs. In later studies, she became particularly interested in crab behavior, including stridulation, carrying, and camouflage. Over the cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...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] |
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