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Alestopetersius Smykalai
''Alestopetersius smykalai'' is a species of African tetras found in the lower Niger River The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through .... This species reaches a length of . Etymology The tetra is named in honor of E. R. Smykala, who collected the type specimen. References *Paugy, D., 1990. Characidae. p. 195-236. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren et O.R.S.T.O.M., Paris, 384 p. Alestidae Fish of Africa Taxa named by Max Poll Fish described in 1967 {{Characiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Poll
Max Fernand Leon Poll (21 July 1908 in Ruisbroek – 13 March 1991 in Uccle) was a Belgian ichthyologist who specialised in the Cichlidae. In the years 1946 and 1947 he organised an 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 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 taxa such as: *The African Lanternshark '' Etmopterus polli'' Bigelow, Schroeder & S. Springer, 1953, *'' Merluccius polli'' Cadenat, 1950, *''Pollichthys'' Grey, 1959, *'' Polyipnus polli'' Schultz, 1961, *The Catfish '' Microsynodontis polli'' J. G. Lamb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Tetra
African tetras ( family Alestidae, formerly spelled Alestiidae) are a group of characiform fish exclusively found in Africa. This family contains about 18 genera and 119 species. Among the best known members are the Congo tetra, and African tigerfish. Taxonomy Taxonomy based on Van der Laan 2017 and Nelson, Grande & Wilson 2016. * Family Alestiidae Cockerell 1910 ** Genus †'' Alestoides'' Monod & Gaudant 1998 ** Genus †'' Arabocharax'' Micklich & Roscher 1990 ** Genus †'' Bunocharax'' Van Neer 1994 ** Genus †'' Eurocharax'' Gaudant 1980 ** Genus †'' Mahengecharax'' Murray 2003 ** Genus †'' Sindacharax'' Greenwood & Howes 1975 ** Genus ''Brycinus'' Valenciennes 1850 'Brycinus macrolepidotus'' species-group** Subfamily Bryconaethiopinae Hoedeman 1951 *** Genus ''Bryconaethiops'' Günther 1873 *** Genus '' Brachyalestes'' Günther 1864 'Brycinus nurse'' species-group** Subfamily Petersiinae Poll 1967 *** Genus ''Alestopetersius'' Hoedeman 1951 Duboisialestes.html ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niger River
The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through Mali, Niger, on the border with Benin and then through Nigeria, discharging through a massive delta, known as the Niger Delta (or the Oil Rivers), into the Gulf of Guinea in the Atlantic Ocean. The Niger is the third-longest river in Africa, exceeded by the Nile and the Congo River. Its main tributary is the Benue River. Etymology The Niger has different names in the different languages of the region: * Fula: ''Maayo Jaaliba'' * Manding: ''Jeliba'' or ''Joliba'' "great river" * Tuareg: ''Egerew n-Igerewen'' "river of rivers" * Songhay: ''Isa'' "the river" * Zarma: ''Isa Beeri'' "great river" * Hausa: ''Kwara'' * Nupe: ''Èdù'' * Yoruba: ''Ọya'' "named after the Yoruba goddess Ọya, who is believed to embody the river" * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alestidae
African tetras (family Alestidae, formerly spelled Alestiidae) are a group of characiform fish exclusively found in Africa. This family contains about 18 genera and 119 species. Among the best known members are the Congo tetra, and African tigerfish. Taxonomy Taxonomy based on Van der Laan 2017 and Nelson, Grande & Wilson 2016. * Family Alestiidae Cockerell 1910 ** Genus †'' Alestoides'' Monod & Gaudant 1998 ** Genus †'' Arabocharax'' Micklich & Roscher 1990 ** Genus †'' Bunocharax'' Van Neer 1994 ** Genus †'' Eurocharax'' Gaudant 1980 ** Genus †'' Mahengecharax'' Murray 2003 ** Genus †'' Sindacharax'' Greenwood & Howes 1975 ** Genus '' Brycinus'' Valenciennes 1850 'Brycinus macrolepidotus'' species-group** Subfamily Bryconaethiopinae Hoedeman 1951 *** Genus ''Bryconaethiops'' Günther 1873 *** Genus '' Brachyalestes'' Günther 1864 'Brycinus nurse'' species-group** Subfamily Petersiinae Poll 1967 *** Genus '' Alestopetersius'' Hoedeman 1951 Duboisialestes.html ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Africa
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 placodermi, 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 arthropo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Max Poll
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 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
%2C_scene_at_the_river_front.jpg "Click for more on -> Niger River")
