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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] |
Geograpsus Lividus
''Geograpsus lividus'' is a species of crab in the family Grapsidae. Description ''G. lividus'' can reach a width of about . Cephalothorax is globose, smooth and without tubercles. Chelar tubercles are restricted to the upper half of the chelae. Distribution ''G. lividus'' is present in the western Atlantic Ocean and in the East Pacific. It can be found on both coasts of America from the central Gulf to Chile and the Galapagos Islands, and from Florida to Brazil. Habitat These crabs live among rocks and stones and in the high tide and splash zones. References *Williams, Austin B., Lawrence G. Abele, D. L. Felder, H. H. Hobbs Jr., R. B. Manning, et al. (1989) Common and Scientific Names of Aquatic Invertebrates from the United States and Canada: Decapod Crustaceans, American Fisheries Society Special Publication 17 External links Flickr CrustiesCrustaceos Grapsidae Taxa named by Henri Milne-Edwards Crustaceans described in 1837 {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geograpsus Grayi
''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] |
Geograpsus Stormi
''Geograpsus'' is a genus of crabs in the family Grapsidae, containing four extant species, and one extinct species: *'' Geograpsus crinipes'' (Dana, 1851) *''Geograpsus grayi'' (H. Milne-Edwards, 1853) *''Geograpsus lividus ''Geograpsus lividus'' is a species of crab in the family Grapsidae. Description ''G. lividus'' can reach a width of about . Cephalothorax is globose, smooth and without tubercles. Chelar tubercles are restricted to the upper half of the chel ...'' (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] |
Geograpsus Crinipes
''Geograpsus'' is a genus of crabs in the family Grapsidae, 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 ''Geograpsus'' is a genus of crabs in the family Grapsidae, containing four extant species, and one extinct species: *'' Geograpsus crinipes'' (Dana, 1851) *''Geograpsus grayi'' (H. Milne-Edwards, 1853) *''Geograpsus lividus ''Geograpsus liv ...'' De Man, 1895 *† '' Geograpsus severnsi'' Paulay & Starmer, 2011 References Grapsidae {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geograpsus Severnsi
''Geograpsus severnsi'' is an extinct species of land crab from Hawaii. It died out shortly after humans colonized the Hawaiian Islands. It is the first known documented crab to become extinct after the ice age. Distribution Specimens of ''G. severnsi'' have been recovered from several of the Hawaiian high islands, including Hawaii, Maui, Oahu and Kauai. They have been found up to inland, and at altitudes of up to . Its range appears to have overlapped with that of the more coastal '' G. crinipes'', a species which is widespread across the Indo-Pacific. Description ''Geograpsus severnsi'' was probably the largest species in the genus. Based on the size of sternites, its carapace width may have been up to . Its claws were long, and in all the specimens with both claws preserved, the right claw was larger than the left. Most of the known specimens are males, but this is thought to reflect behavioral differences between the sexes, rather than an extreme sex ratio in the ... [...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] |
Malacostraca
Malacostraca (from New Latin; ) is the largest of the six classes of crustaceans, containing about 40,000 living species, divided among 16 orders. Its members, the malacostracans, display a great diversity of body forms and include crabs, lobsters, crayfish, shrimp, krill, prawns, woodlice, amphipods, mantis shrimp, tongue-eating lice and many other less familiar animals. They are abundant in all marine environments and have colonised freshwater and terrestrial habitats. They are segmented animals, united by a common body plan comprising 20 body segments (rarely 21), and divided into a head, thorax, and abdomen. Etymology The name Malacostraca was coined by a French zoologist Pierre André Latreille in 1802. He was curator of the arthropod collection at the National Museum of Natural History in Paris. The name comes from the Greek roots (', meaning "soft") and (', meaning "shell"). The name is misleading, since the shell is soft only immediately after moulting, and is u ... [...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] |
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] |
William Stimpson
William Stimpson (February 14, 1832 – May 26, 1872) was a noted American scientist. He was interested particularly in marine biology. Stimpson became an important early contributor to the work of the Smithsonian Institution and later, director of the Chicago Academy of Sciences. Biography Stimpson was born in Boston, Massachusetts to Herbert Hathorne Stimpson and Mary Ann Devereau Brewer. The Stimpsons were of the colonial stock of Massachusetts, the earliest known member of the family being James Stimpson, who was married in 1661, in Milton. His mother died at an early age. William Stimpson's father was an ingenious inventor, and a leading merchant of Boston in the mid decades of the nineteenth century, trading as "H. & F. Stimpson, stoves and furnaces, corner of Congress and Water Streets. It was he who invented the "Stimpson range", the first sheet-iron cooking stove, famous in its day throughout New England. He also made improvements in rifles, and suggested the placin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...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 stude ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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