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Ophisternon Afrum
''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 six 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)
Sir John McClelland (1805–1883) was a British medical doctor with interests in geology and biology, who worked for the East India Company. 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. 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 first to propose hiring professional geologists for the task. He was also involved in surveys of forests and his reports led to the establishment of the Forest Department in India. He also served as an interim superintendent of the Calcutta Botanical Garden from 1846 to 1847 and was editor of the ''Calcutta Journal of Natural History'' from 1841–1847. Legacy McClelland is commemorated in the name of the mountain bulbul, ''Ixos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donn Eric Rosen
Donn Eric Rosen (1929-1986) was a member of the staff of the American Museum of Natural History. He was a Distinguished Fellow of the American Society of Ichthyologists and Herpetologists. Family Born to immigrants Irwin Rosen (b. 1885) and Anita Gerber Rosen (b. 1906), Rosen has an older brother : Charles Welles. Both his parents were born in Russia. Irwin came to the United States in 1889 and had a career in architecture. Anita arrived in the United States prior to 1920. Works Rosen has written over twenty eight scientific papers. Rosen has described twenty three species. Selected publications *Rosen, Donn Eric, P. Humphry Greenwood 1970. Origin of the Weberian Apparatus and the Relationships of the Ostariophysan and Gonorynchiform Fishes, American Museum Novitates, American Museum of Natural History,New York, New York, USA, 2428 *Rosen, Donn Eric, Bailey, Reeve M. The Poeciliid Fishes (Cyprinodontiformes), Their Structure, Zoogeography, and Systematics. Bulletin of the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray-finned Fish Genera
Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they constitute nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from ''Paedocypris'', at , to the massive ocean sunfish, at , and the long-bodied oarfish, at . The vast majority of Actinop ... [...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 spec ... [...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. 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 six 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. He 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 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 mouth of the Coppermine River. These ... [...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 six 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 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 Barrow cave gudgeon (''Milyeringa justitia''). It is 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 northwestern Australia, specifically in the Cape Range region, the Pilbara Region, and the 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 eel lives in a total darkness environment in underground waters disconnecting from the surface seawater. They ... [...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 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 and anal fins are reduced and form folds of skin on the rear half of the body, the 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 and habitat ''Ophisternon bengalense ... [...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 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 ''Muséum national d'Histoire naturelle'' in Paris and the British Museum in London. In 1880, he was invited to work at the Natural History Museum, then a department of the British Museum, by Dr. Albert C. L. G. Günther a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon Afrum
''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 six 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] |
