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Mormyrus Rume
''Mormyrus rume'' is a species of electric fish in the family Mormyridae, found in the basins of the Gambia, Senegal, Niger, Volta, Chad, Bandama, Sassandra, Komoé, Mono, Ouémé, Ogun and Culufi rivers, among others. This species contains the following subspecies: * '' Mormyrus rume proboscirostris'' (Boulenger, 1898): can reach a size of approximately ; * '' Mormyrus rume rume'' (Valenciennes Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced a s ..., 1847): can reach a size of approximately .Olaosebikan, B.D.; Raji, A. (1998) Field guide to Nigerian freshwater fishes. Federal College of Freshwater Fisheries Technology, New Bussa, Nigeria. 106 p. References rume Fish described in 1847 Fish described in the 19th century Taxa named by Achille Valenciennes {{Osteogl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achille Valenciennes
Achille Valenciennes (9 August 1794 – 13 April 1865) was a French zoologist. Valenciennes was born in Paris, and studied under Georges Cuvier. His study of parasitic worms in humans made an important contribution to the study of parasitology. He also carried out diverse systematic classifications, linking fossil and current species. He worked with Cuvier on the 22-volume "'' Histoire Naturelle des Poissons''" (Natural History of Fish) (1828–1848), carrying on alone after Cuvier died in 1832. In 1832, he succeeded Henri Marie Ducrotay de Blainville (1777–1850) as chair of ''Histoire naturelle des mollusques, des vers et des zoophytes'' at the Muséum national d'histoire naturelle. Early in his career, he was given the task of classifying animals described by Alexander von Humboldt (1769–1859) during his travels in the American tropics (1799 to 1803), and a lasting friendship was established between the two men. He is the binomial authority for many species of fish, such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mono River
The Mono River is the major river of eastern Togo. Approximately long, and draining a basin of about , it rises between the town of Sokodé and the border with Benin, and flows south. Along the southern portion of the river towards its mouth, it forms the international boundary between Togo and Benin. The river drains into the Bight of Benin through an extensive system of brackish water lagoons and lakes, including Lake Togo. Only the part of the river nearest its mouth is navigable. Most of the river's basin on the upper tableland is cultivated for maize, yams, rice, cotton and cassava. The river is dammed from its mouth by the Nangbeto Dam, a partnership between Benin and Togo completed in 1987. Studies have reported economic benefits from the dam, including tourism and fishing in the lake behind it. The dam's construction displaced between 7,600 and 10,000 people, however, and studies indicate that it has substantially modified the ecology of the lagoon system at the rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1847
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mormyrus
''Mormyrus'' is a genus of ray-finned fish in the family Mormyridae. Species There are currently 22 recognized species in this genus: * '' Mormyrus bernhardi'' Pellegrin 1926 (Bernhard's elephant-snout fish) * '' Mormyrus caballus'' Boulenger 1898 ** ''Mormyrus caballus asinus'' Boulenger, 1915 ** ''Mormyrus caballus bumbanus'' Boulenger 1909 ** ''Mormyrus caballus caballus'' Boulenger 1898 ** ''Mormyrus caballus lualabae'' Reizer 1964 * '' Mormyrus casalis'' Vinciguerra 1922 (Somali mormyrid) * ''Mormyrus caschive'' Linnaeus 1758 (Eastern bottlenose elephant snout) * '' Mormyrus cyaneus'' T. R. Roberts & D. J. Stewart 1976 (Lower Congo River mormyrid) * '' Mormyrus felixi'' Pellegrin 1939 * '' Mormyrus goheeni'' Fowler 1919 (Liberian mormyrid) * '' Mormyrus hasselquistii'' Valenciennes 1847 (Elephant snout) * ''Mormyrus hildebrandti'' W. K. H. Peters 1882 (Hildebrandt's elephant-snout fish) * '' Mormyrus iriodes'' T. R. Roberts & D. J. Stewart 1976 (Inga mormyr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mormyrus Rume Rume
''Mormyrus'' is a genus of ray-finned fish in the family Mormyridae. Species There are currently 22 recognized species in this genus: * ''Mormyrus bernhardi'' Pellegrin 1926 (Bernhard's elephant-snout fish) * ''Mormyrus caballus'' Boulenger 1898 ** ''Mormyrus caballus asinus'' Boulenger, 1915 ** ''Mormyrus caballus bumbanus'' Boulenger 1909 ** ''Mormyrus caballus caballus'' Boulenger 1898 ** ''Mormyrus caballus lualabae'' Reizer 1964 * ''Mormyrus casalis'' Vinciguerra 1922 (Somali mormyrid) * '' Mormyrus caschive'' Linnaeus 1758 (Eastern bottlenose elephant snout) * ''Mormyrus cyaneus'' T. R. Roberts & D. J. Stewart 1976 (Lower Congo River mormyrid) * ''Mormyrus felixi'' Pellegrin 1939 * ''Mormyrus goheeni'' Fowler 1919 (Liberian mormyrid) * ''Mormyrus hasselquistii'' Valenciennes 1847 (Elephant snout) * '' Mormyrus hildebrandti'' W. K. H. Peters 1882 (Hildebrandt's elephant-snout fish) * ''Mormyrus iriodes'' T. R. Roberts & D. J. Stewart 1976 (Inga mormyrid) * ''M ... [...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] |
Mormyrus Rume Proboscirostris
''Mormyrus'' is a genus of ray-finned fish in the family Mormyridae. Species There are currently 22 recognized species in this genus: * ''Mormyrus bernhardi'' Pellegrin 1926 (Bernhard's elephant-snout fish) * ''Mormyrus caballus'' Boulenger 1898 ** ''Mormyrus caballus asinus'' Boulenger, 1915 ** ''Mormyrus caballus bumbanus'' Boulenger 1909 ** ''Mormyrus caballus caballus'' Boulenger 1898 ** ''Mormyrus caballus lualabae'' Reizer 1964 * ''Mormyrus casalis'' Vinciguerra 1922 (Somali mormyrid) * '' Mormyrus caschive'' Linnaeus 1758 (Eastern bottlenose elephant snout) * ''Mormyrus cyaneus'' T. R. Roberts & D. J. Stewart 1976 (Lower Congo River mormyrid) * ''Mormyrus felixi'' Pellegrin 1939 * ''Mormyrus goheeni'' Fowler 1919 (Liberian mormyrid) * ''Mormyrus hasselquistii'' Valenciennes 1847 (Elephant snout) * '' Mormyrus hildebrandti'' W. K. H. Peters 1882 (Hildebrandt's elephant-snout fish) * ''Mormyrus iriodes'' T. R. Roberts & D. J. Stewart 1976 (Inga mormyrid) * ''M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ogun River
The Ogun River is a waterway in Nigeria that discharges into the Lagos Lagoon. Course and usage The river rises in Sepeteri Oyo State near Shaki at coordinates and flows through Ogun State into Lagos State. The river is crossed by the Ikere Gorge Dam in the Iseyin local government area of Oyo State. The reservoir capacity is . The reservoir abuts the Old Oyo National Park, providing recreational facilities for tourists, and the river flows through the park. The Ofiki River, which also rises near Shaki, is the Ogun River's chief tributary. The Oyan River, another tributary, is crossed by the Oyan River Dam which supplies water to Abeokuta and Lagos. In densely populated areas the river is used for bathing, washing and drinking. It also serves as a drain for mostly organic wastes from abattoirs located along the river's course. History In the Yoruba religion, Yemoja is the divinity of the Ogun River. The catechist Charles Phillips, father of the Charles Phillips who later be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ouémé River
The Ouémé River, also known as the Weme River, is a river in Benin. It rises in the Atakora Mountains, and is about long. It flows past the towns of Carnotville and Ouémé to a large delta on the Gulf of Guinea near the seaport city of Cotonou. The largest tributaries are the Okpara River The Okpara River is a river of Benin.Rand McNally, ''The New International Atlas'', 1993. Originating in Borgou Department, it flows south and becomes the border between Nigeria and Benin before re-entering Benin and flowing into the Ouémé Rive ... and the Alpouro River. Description Ouémé River is the largest river of the Benin Republic. It is located between 6° 30° and 10° north latitude and 0° 52 'and 3° 05' east longitude(Oba S. Alain 2018). It crosses several agro-ecological zones and feeds downstream, the lagoon system ‘'Lake Nokoué-lagoon of Porto-Novo'’ through a Delta zone. The lower Delta of Ouémé, is located between latitude 6° 33'N and 8° 15 'and the merid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komoé River
The Komoé River or Comoé River is a river in West Africa. The river originates on the Sikasso Plateau of Burkina Faso, flow through the Cascades de Karfiguéla, forms a short section of the border between Burkina Faso and Ivory Coast until it enters Ivory Coast, where it is the major drainage for northeastern portion of that country before emptying into the Atlantic. The banks of the Komoé are shaded by riparian forests along most of it length providing an important habitat for wildlife and a source of agricultural water. Where reliable floodplains form in Ivory Coast, rice may be grown. A portion of the river in northern Ivory Coast is the source of the vegetative richness that earned that area a UNESCO World Heritage Site designation, Comoé National Park. Course The Komoé River is approximately 759 km long. It rises on the Sikasso Plateau and in the Sindou Hills flowing south over several cataracts with several falls including the "Chutes de la Komoé" and Karif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Fish
An electric fish is any fish that can generate electric fields. Most electric fish are also electroreceptive, meaning that they can sense electric fields. The only exception is the stargazer family. Electric fish, although a small minority, include both oceanic and freshwater species, and both cartilaginous and bony fishes. Electric fish produce their electrical fields from an electric organ. This is made up of electrocytes, modified muscle or nerve cells, specialized for producing strong electric fields, used to locate prey, for defence against predators, and for signalling, such as in courtship. Electric organ discharges are two types, pulse and wave, and vary both by species and by function. Electric fish have evolved many specialised behaviours. The predatory African sharptooth catfish eavesdrops on its weakly electric mormyrid prey to locate it when hunting, driving the prey fish to develop electric signals that are harder to detect. Bluntnose knifefishes produce an el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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