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Ophisternon Aenigmaticum
''Ophisternon'' is a genus of swamp eels found in fresh and brackish waters in South and Southeast Asia, New Guinea, Australia, Middle America and West Africa. Two species are blind cave-dwellers.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Species There are currently seven recognized species in this genus: * '' Ophisternon aenigmaticum'' D. E. Rosen & Greenwood, 1976 (Obscure swamp eel) * '' Ophisternon afrum'' ( Boulenger, 1909) (Guinea swamp eel) * ''Ophisternon bengalense'' McClelland, 1844 (Bengal eel) * ''Ophisternon candidum'' ( Mees, 1962) (Blind cave eel) * '' Ophisternon gutturale'' ( J. Richardson, 1845) (Australian swamp eel) * ''Ophisternon infernale The blind swamp eel (''Ophisternon infernale'') is a species of fish in the family Synbranchidae. It is endemic to Mexico where it lives in cave systems and is known in Spanish as the '. The International Union for Conservation of Nature has rat . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John McClelland (doctor)
John McClelland or M'Clelland (1805 – 31 July 1883) was a British medical doctor with interests in natural history, who worked for the East India Company in India and Burma. He served as a temporary curator of the museum of the Asiatic Society of Bengal just before a permanent curator was found in Edward Blyth. McClelland is thought to have been born in Ireland, studied medicine and was admitted member of the Royal College of Surgeons in 1828. He entered the service of the East India Company in the Bengal Medical Service on 7th April 1830. In 1835 he was sent on a mission (Tea Committee) to identify if tea could be grown in north-eastern India along with Nathaniel Wallich and William Griffith. This mission ran into troubles with the members of the group clashing with each other. McClelland was appointed 1836 as the secretary of the "Coal Committee", the forerunner of the Geological Survey of India (GSI), formed to explore possibilities to exploit Indian coal. He was the firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humphry Greenwood
Peter Humphry Greenwood Fellow of the Royal Society, FRS FIBiol (21 April 1927 – 3 March 1995) was an English ichthyologist. Humphry married fellow student Marjorie George (1924 – 2006) in 1950. He was elected a Fellow of the Royal Society in 1985. He was known for his work on the species flocks of cichlids in the African Great Lakes, and for studies of the phylogeny and systematics of teleosts. Tribute The cichlid fish ''Diplotaxodon greenwoodi'' is named for him. Also ''Brachyaetoides greenwoodi'' Bonde, 2008 is named for him. As is ''Enteromius greenwoodi'' (Max Poll, Poll 1967). See also *:Taxa named by Humphry Greenwood References External links * 1927 births 1995 deaths Fellows of the Royal Society English ichthyologists 20th-century English zoologists Members of the Royal Swedish Academy of Sciences Presidents of the Linnean Society of London {{UK-zoologist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray-finned Fish Genera
Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class (biology), class of Osteichthyes, bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fish fin, fins made of webbings of skin supported by radially extended thin bony spine (zoology), spines called ''lepidotrichia'', as opposed to the bulkier, fleshy lobed fins of the sister taxon, sister clade Sarcopterygii (lobe-finned fish). Resembling folding fans, the actinopterygian fins can easily change shape and wetted area, providing superior thrust-to-weight ratios per movement compared to sarcopterygian and chondrichthyian fins. The fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the articulation (anatomy), articulation between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). The vast majority of actinopterygians are teleosts. By species count, they domi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synbranchidae
The swamp eels (also written "swamp-eels") are a family (Synbranchidae) of freshwater eel-like fishes of the tropics and subtropics. Most species are able to breathe air and typically live in marshes, ponds and damp places, sometimes burying themselves in the mud if the water source dries up. They have various adaptations to suit this lifestyle; they are long and slender, they lack pectoral and pelvic fins, and their dorsal and anal fins are vestigial, making them limbless vertebrates. They lack scales and a swimbladder, and their gills open on the throat in a slit or pore. Oxygen can be absorbed through the lining of the mouth and pharynx, which is rich in blood vessels and acts as a "lung". Although adult swamp eels have virtually no fins, the larvae have large pectoral fins which they use to fan water over their bodies, thus ensuring gas exchange before their adult breathing apparatus develops. When about a fortnight old they shed these fins and assume the adult form. Most sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon
''Ophisternon'' is a genus of swamp eels found in fresh and brackish waters in South and Southeast Asia, New Guinea, Australia, Middle America and West Africa West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations geoscheme for Africa#Western Africa, United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Gha .... Two species are blind cave-dwellers.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Species There are currently seven recognized species in this genus: * '' Ophisternon aenigmaticum'' D. E. Rosen & Greenwood, 1976 (Obscure swamp eel) * '' Ophisternon afrum'' ( Boulenger, 1909) (Guinea swamp eel) * '' Ophisternon bengalense'' McClelland, 1844 (Bengal eel) * '' Ophisternon candidum'' ( Mees, 1962) (Blind cave eel) * '' Ophisternon gutturale'' ( J. Richardson, 1845) (Australian swamp eel) * '' Ophisternon in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon Berlini
''Ophisternon'' is a genus of swamp eels found in fresh and brackish waters in South and Southeast Asia, New Guinea, Australia, Middle America and West Africa. Two species are blind cave-dwellers.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Species There are currently seven recognized species in this genus: * ''Ophisternon aenigmaticum'' D. E. Rosen & Greenwood, 1976 (Obscure swamp eel) * '' Ophisternon afrum'' ( Boulenger, 1909) (Guinea swamp eel) * ''Ophisternon bengalense'' McClelland, 1844 (Bengal eel) * ''Ophisternon candidum'' ( Mees, 1962) (Blind cave eel) * '' Ophisternon gutturale'' ( J. Richardson, 1845) (Australian swamp eel) * ''Ophisternon infernale The blind swamp eel (''Ophisternon infernale'') is a species of fish in the family Synbranchidae. It is endemic to Mexico where it lives in cave systems and is known in Spanish as the '. The International Union for Conservation of Nature has rat .. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon Infernale
The blind swamp eel (''Ophisternon infernale'') is a species of fish in the family Synbranchidae. It is endemic to Mexico where it lives in cave systems and is known in Spanish as the '. The International Union for Conservation of Nature has rated this cavefish as "endangered". Taxonomy The blind swamp eel was first described by the American ichthyologist Carl Leavitt Hubbs in 1938, the holotype having been collected two years earlier by A.S.Pearse. Hubbs named the fish ''Pluto infernalis'' because he liked to associate creatures living underground with the devil, who supposedly dwelt underground, and gave diabolical names to cave fishes; ''infernale'' comes from the Latin for Hell. The fish was later transferred to the genus ''Ophisternon'', the swamp eels. The genus name is derived from the Greek, "ophis", meaning a serpent, and "sternon", meaning chest. Synonyms for this species include ''Furmastix infernalis'' and ''Synbranchus infernalis''. Description The blind swamp eel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Richardson (naturalist)
Sir John Richardson Royal Society of London, FRS FRSE (5 November 1787 – 5 June 1865) was a Scotland, Scottish naval surgeon, natural history, naturalist and Arctic explorer. Life Richardson was born at Nith Place in Dumfries the son of Gabriel Richardson, Provost of Dumfries, and his wife, Anne Mundell. He was educated at Dumfries Grammar School. He was then apprenticed to his maternal uncle, Dr James Mundell, a surgeon in Dumfries. Richardson studied medicine at Edinburgh University, and became a surgeon in the navy in 1807. He traveled with John Franklin in search of the Northwest Passage on the Coppermine Expedition of 1819–1822. Richardson wrote the sections on geology, botany and ichthyology for the official account of the expedition. Franklin and Richardson Mackenzie River expedition, returned to Canada in 1825 and went overland by fur trade routes to the mouth of the Mackenzie River. Franklin was to go as far west as possible and Richardson was to go east to the mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon Gutturale
''Ophisternon'' is a genus of swamp eels found in fresh and brackish waters in South and Southeast Asia, New Guinea, Australia, Middle America and West Africa. Two species are blind cave-dwellers.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Species There are currently seven recognized species in this genus: * ''Ophisternon aenigmaticum'' D. E. Rosen & Greenwood, 1976 (Obscure swamp eel) * '' Ophisternon afrum'' ( Boulenger, 1909) (Guinea swamp eel) * ''Ophisternon bengalense'' McClelland, 1844 (Bengal eel) * ''Ophisternon candidum'' ( Mees, 1962) (Blind cave eel) * '' Ophisternon gutturale'' ( J. Richardson, 1845) (Australian swamp eel) * ''Ophisternon infernale'' ( C. L. Hubbs, 1938) (Blind swamp eel) * ''Ophisternon berlini ''Ophisternon'' is a genus of swamp eels found in fresh and brackish waters in South and Southeast Asia, New Guinea, Australia, Middle America and West Africa. Two species are blind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon Candidum
The blind cave eel (''Ophisternon candidum'') is a species of cavefish in the family Synbranchidae. It is the longest cavefish in Australia (up to ) and one of the only three vertebrates in Australia that is restricted to underground waters, the other being the blind gudgeon (''Milyeringa veritas'') and the Milyeringa justitia, Barrow cave gudgeon (''Milyeringa justitia''). It is Blind fish, blind, its body is eel-like and elongated, and it has a non-pigmented skin with colours ranging from white to pink. The blind cave eel is endemic to North West Australia, northwestern Australia, specifically in the Cape Range National Park, Cape Range region, the Pilbara Region, and the Barrow Island (Western Australia), Barrow Island region. It is rarely spotted due to its habitat and has only been spotted 36 times from 1959 to 2017. Notably, there is an evolving independent parentage in the Pilbara region showing a significant genetic difference from other blind cave eels. The blind cave e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon Bengalense
''Ophisternon bengalense'' the Bengal eel, Bengal mudeel or onegill eel, is a species of fish in the family Synbranchidae. It is Endemism, endemic to freshwater and brackish water rivers and swamps in Oceania and South Asia. It is normally 100 cm in maximum length. Description ''Ophisternon bengalense'' has an eel-like body with a flattened head with a single slit-like gill opening at the bottom of the back of its head and small eyes which can be seen through its skin. The dorsal fin, dorsal and anal fins are reduced and form folds of skin on the rear half of the body, the Pectoral fin, pectoral and pelvic fins are absent. It can grow to but is more usually . The colour is blackish-green to rufous with a purplish tinge and dark spots. Distribution ''Ophisternon bengalense'' is recorded from South Asian countries like India, Bangladesh and Sri Lanka to south-eastern Asia, Indonesia, Philippines and New Guinea. The fish may also found in Australia and Palau islands. Biology a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Albert Boulenger
George Albert Boulenger (19 October 1858 – 23 November 1937) was a Belgian-British zoologist who described and gave scientific names to over 2,000 new animal species, chiefly fish, reptiles, and amphibians. Boulenger was also an active botanist during the last 30 years of his life, especially in the study of roses. Life Boulenger was born in Brussels, Belgium, the only son of Gustave Boulenger, a Belgian public notary, and Juliette Piérart, from Valenciennes. He graduated in 1876 from the Free University of Brussels (1834–1969), Free University of Brussels with a degree in natural sciences, and worked for a while at the Royal Belgian Institute of Natural Sciences, Brussels, as an assistant naturalist studying amphibians, reptiles, and fishes. He also made frequent visits during this time to the ''National Museum of Natural History (France), Muséum national d'Histoire naturelle'' in Paris and the Natural History Museum, London, British Museum in London. Boulenger develop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
