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Gnathonemus
''Gnathonemus'' is a genus of elephantfish in the family Mormyridae. Species There are currently four recognized species in this genus: * '' Gnathonemus barbatus'' Poll 1967 (Angolan mormyrid) * '' Gnathonemus echidnorhynchus'' Pellegrin 1924 (Blunt-jawed elephantnose) * '' Gnathonemus longibarbis'' ( Hilgendorf 1888) (Longnose stonebasher) * ''Gnathonemus petersii Peters's elephant-nose fish (''Gnathonemus petersii'') is an African freshwater elephantfish in the genus ''Gnathonemus''. Other names in English include elephantnose fish, long-nosed elephant fish, and Ubangi mormyrid, after the Ubangi River. T ...'' ( Günther 1862) (Peters's elephantnose fish) References Mormyridae Ray-finned fish genera Taxa named by Theodore Gill Taxonomy articles created by Polbot {{Osteoglossiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnathonemus Petersii
Peters's elephant-nose fish (''Gnathonemus petersii'') is an African freshwater elephantfish in the genus ''Gnathonemus''. Other names in English include elephantnose fish, long-nosed elephant fish, and Ubangi mormyrid, after the Ubangi River. The Latin name is probably for the German naturalist Wilhelm Peters. The fish uses electrolocation to find prey, and has the largest brain-to-body oxygen use ratio of all known vertebrates (around 0.6).Nilsson G (1996"Brain and body oxygen requirements of Gnathonemus petersii, a fish with an exceptionally large brain"''Journal of Experimental Biology'', 199(3): 603-607Download/ref> Description Peters's elephantnose fish is native to the rivers of West and Central Africa, in particular the lower Niger River basin, the Ogun River basin and the upper Chari River. It prefers muddy, slowly moving rivers and pools with cover such as submerged branches. The fish is a dark brown to black in colour, laterally compressed (averaging ), with a rear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnathonemus Barbatus
''Gnathonemus'' is a genus of elephantfish in the family Mormyridae. Species There are currently four recognized species in this genus: * '' Gnathonemus barbatus'' Poll 1967 (Angolan mormyrid) * '' Gnathonemus echidnorhynchus'' Pellegrin 1924 (Blunt-jawed elephantnose) * '' Gnathonemus longibarbis'' ( Hilgendorf 1888) (Longnose stonebasher) * ''Gnathonemus petersii Peters's elephant-nose fish (''Gnathonemus petersii'') is an African freshwater elephantfish in the genus ''Gnathonemus''. Other names in English include elephantnose fish, long-nosed elephant fish, and Ubangi mormyrid, after the Ubangi River. T ...'' ( Günther 1862) (Peters's elephantnose fish) References Mormyridae Ray-finned fish genera Taxa named by Theodore Gill Taxonomy articles created by Polbot {{Osteoglossiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnathonemus Echidnorhynchus
''Gnathonemus'' is a genus of elephantfish in the family Mormyridae. Species There are currently four recognized species in this genus: * ''Gnathonemus barbatus'' Poll 1967 (Angolan mormyrid) * '' Gnathonemus echidnorhynchus'' Pellegrin 1924 (Blunt-jawed elephantnose) * '' Gnathonemus longibarbis'' ( Hilgendorf 1888) (Longnose stonebasher) * ''Gnathonemus petersii Peters's elephant-nose fish (''Gnathonemus petersii'') is an African freshwater elephantfish in the genus ''Gnathonemus''. Other names in English include elephantnose fish, long-nosed elephant fish, and Ubangi mormyrid, after the Ubangi River. T ...'' ( Günther 1862) (Peters's elephantnose fish) References Mormyridae Ray-finned fish genera Taxa named by Theodore Gill Taxonomy articles created by Polbot {{Osteoglossiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnathonemus Longibarbis
The longnose stonebasher (''Gnathonemus longibarbis'') is a species of fish in the family Mormyridae. It is found in Burundi, the Democratic Republic of the Congo, Kenya, and Tanzania. Its natural habitats are rivers, freshwater lakes, freshwater marshes, and inland deltas. Diet The Longnose Stonebasher has been found to feed on the bottom of water sources amongst minimal vegetation. The fish mainly eats insects such as larvae but has also been known to eat a variety of arthropod Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arth ...s, fish eggs and worms.Greenwood, P.H., 1966. The Fishes of Uganda. The Uganda Society, Kampala. 131p. References Mormyridae Taxonomy articles created by Polbot Taxa named by Franz Martin Hilgendorf Fish described in 1888 {{Osteoglossifor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mormyridae
The Mormyridae, sometimes called "elephantfish" (more properly freshwater elephantfish), are a Mormyridae (superfamily) , family of Electric fish , weakly electric freshwater fish in the order Osteoglossiformes native to Africa. It is by far the largest family in the order with around 200 species. Members of the family can be popular, if challenging, aquarium species. These fish are also known for having large brain size and unusually high Animal cognition , intelligence. They are not to be confused with the marine and brackish-water Callorhinchidae , callorhinchid elephantfish (family Callorhinchidae) of Southern Hemisphere oceans. Description and biology The elephantfish are a diverse family, with a wide range of different sizes and shapes. The smallest are just in adult length, while the largest reach up to . They do, however, have a number of unique features in common. Firstly, their cerebellum is greatly enlarged, enabling them to interpret complex bio-electrical signals. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Gill
Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural history. He was associated with J. Carson Brevoort in the arrangement of the latter's entomological and ichthyological collections before going to Washington D.C. in 1863 to work at the Smithsonian Institution. He catalogued mammals, fishes and mollusks most particularly although maintaining proficiency in other orders of animals. He was librarian at the Smithsonian and also senior assistant to the Library of Congress. He was elected as a member of the American Philosophical Society in 1867. Gill was professor of zoology at George Washington University. He was also a member of the Megatherium Club at the Smithsonian Institution in Washington, D.C. Fellow members frequently mocked him for his vanity. He was president of the American Associati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Poll
Max Fernand Leon Poll (21 July 1908 in Ruisbroek, Flemish Brabant, Ruisbroek – 13 March 1991 in Uccle) was a Belgians, Belgian ichthyologist who specialised in the Cichlidae. In the years 1946 and 1947 he organised an exploration, expedition to Lake Tanganyika. He has described several species of Pseudocrenilabrinae, such as ''Lamprologus signatus'', ''Steatocranus casuarius'', ''Neolamprologus brichardi'', and ''Neolamprologus pulcher''. He was a member of The Royal Academies for Science and the Arts of Belgium, professor at Université Libre de Bruxelles, and Conservator (museum), conservator at Musée Royal du Congo Belge in Tervuren. He was an honorary member of the American Society of Ichthyologists and Herpetologists. Taxon named in his honor Named after him are species and taxon, taxa such as: *The African Lanternshark ''Etmopterus polli'' Henry Bryant Bigelow, Bigelow, William Charles Schroeder, Schroeder & Stewart Springer, S. Springer, 1953, *''Merluccius polli'' Jea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Pellegrin
Jacques Pellegrin (12 June 1873, Paris – 12 August 1944) was a French zoologist. In Paris, he worked under zoologist Léon Vaillant (chair of reptiles and fishes) at the ''Muséum national d'histoire naturelle''. From 1897, Pellegrin served as ''préparateur'' at the museum. He obtained doctorates in medicine (1899) and science (1904), and in 1908 was named as an assistant director. After many missions abroad, he became sub-director of the museum in 1937, and replaced Louis Roule (1861–1942) as the chairperson of herpetology and ichthyology. He published over 600 scientific books and articles and discovered around 350 new species. He named a number of fishes from the family Cichlidae, such as the genera '' Astatoreochromis'', '' Astatotilapia'', '' Boulengerochromis'', ''Lepidiolamprologus'', ''Nanochromis'' and '' Ophthalmotilapia''. Taxa named in his honor He has the following species named in his honor: * The Clingfish '' Apletodon pellegrini'' * ''Enteromius pelle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Martin Hilgendorf
Franz Martin Hilgendorf (5 December 1839 – 5 July 1904) was a German zoologist and paleontologist. Hilgendorf's research on fossil snails from the Steinheim crater in the early 1860s became a palaeontological evidence for the theory of evolution published by Charles Darwin in 1859. Life and work Franz Hilgendorf was born on 5 December 1839 in Neudamm (Mark Brandenburg). Between 1851 and 1854 he went to a gymnasium in Königsberg (Neumark) and later to the Gymnasium ''Zum Grauen Kloster'' (Grey Monastery) in Berlin where he graduated in 1858. In 1859 he started studying philology at the University of Berlin. After four semesters he changed to the University of Tübingen. In the summer of 1862 he joined an excavation by Friedrich August Quenstedt in the Steinheim crater. In 1863 Hilgendorf received his Ph.D. for work related to this excavation. He finished his research on the fossils during his time at the Museum für Naturkunde in Berlin. In 1868, Hilgendorf became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Günther
Albert Karl Ludwig Gotthilf Günther FRS, also Albert Charles Lewis Gotthilf Günther (3 October 1830 – 1 February 1914), was a German-born British zoologist, ichthyologist, and herpetologist. Günther is ranked the second-most productive reptile taxonomist (after George Albert Boulenger) with more than 340 reptile species described. Early life and career Günther was born in Esslingen in Swabia (Württemberg). His father was a ''Stiftungs-Commissar'' in Esslingen and his mother was Eleonora Nagel. He initially schooled at the Stuttgart Gymnasium. His family wished him to train for the ministry of the Lutheran Church for which he moved to the University of Tübingen. A brother shifted from theology to medicine, and he, too, turned to science and medicine at Tübingen in 1852. His first work was "''Ueber den Puppenzustand eines Distoma''". He graduated in medicine with an M.D. from Tübingen in 1858, the same year in which he published a handbook of zoology for students of ... [...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] |
Taxa Named By Theodore Gill
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in '' Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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