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Phenacogrammus Deheyni
''Phenacogrammus deheyni'' is a species of freshwater ray-finned fish belonging to the family Alestidae, the African tetras. It is found in the middle Congo River, the Ruki drainage, of the Mongala and Aruwimi rivers in the Democratic Republic of the Congo. Description ''Phenacogrammus deheyni'' reaches a total length of . Etymology The tetra is named in honor of diplomat/naturalist Jean Jacques Deheyn (b. 1914), of the Royal Museum of Central Africa The Royal Museum for Central Africa (RMCA) (; ; ), communicating under the name AfricaMuseum since 2018, is an ethnography and natural history museum situated in Tervuren in Flemish Brabant, Belgium, just outside Brussels. It was originally bui ..., who collected the type specimen. References *Paugy, D., 1984. Characidae. p. 140-183. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. deheyni Freshwater f ... [...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 the Université libre de Bruxelles, and conservator at the Royal Museum of the Belgian Congo 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 In biology, a taxon (back-formation from ''taxonomy''; : 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 particula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinopterygii
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] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alestidae
African tetras (family (biology), family Alestidae, formerly spelled Alestiidae) are a group of Characiformes, characiform fish found exclusively in Africa. This family contains about 18 genera and 119 species. Among the best known members are the Congo tetra, and Hydrocynus, African tigerfish. Although presently found only in Africa, fossil evidence suggests that during the Paleogene, they ranged as far north as southern Europe and as far east as the Arabian subcontinent. Fossil remains date back to potentially the Late Paleocene with ''Hydrocynus'' remains known from Algeria. Alestid-like teeth are also known from the Late Cretaceous (Maastrichtian) of France, and phylogenetic evidence also suggests they diverged around this time. Taxonomy Taxonomy based on Van der Laan 2017 and ''Eschmeyer's Catalog of Fishes'' (2025): * Family Alestidae Cockerell, 1910 ** Genus ''Alestes'' Johannes Peter Müller, Müller & Franz Hermann Troschel, Troschel, 1844 ** Genus ''Alestion'' Tyson R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congo River
The Congo River, formerly also known as the Zaire River, is the second-longest river in Africa, shorter only than the Nile, as well as the third-largest river in the world list of rivers by discharge, by discharge volume, following the Amazon River, Amazon and Ganges rivers. It is the world's deepest recorded river, with measured depths of around . The Congo–Lualaba River, Lualaba–Luvua River, Luvua–Luapula River, Luapula–Chambeshi River system has an overall length of , which makes it the world's ninth-List of rivers by length, longest river. The Chambeshi is a tributary of the Lualaba River, and ''Lualaba'' is the name of the Congo River upstream of Boyoma Falls, extending for . Measured along with the Lualaba, the main tributary, the Congo River has a total length of . It is the only major river to cross the equator twice. The Congo Basin has a total area of about , or 13% of the entire African landmass. Name The name ''Congo/Kongo'' originates from the Kingdom of Ko ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruki River
The Ruki () is a river in the Democratic Republic of the Congo. It is a left tributary of the Congo River. It may be seen as the lower reach of the Busira River, which in turn may be seen as the lower reach of the Tshuapa River. Location The Ruki is a major river in the Cuvette Centrale of the middle Congo River basin. The watershed covers about . The drainage basin is almost entirely pristine lowland forest and swamp forest. As of 2020, 248 species of fish had been identified in 26 families. The main rivers are the Ruki-Busira, Momboyo-Luilaka, Tshuapa, Lomela and Salonga. The most important town in the river basin is Boende on the Tshuapa, upstream from where it joins the Lomela to form the Busira. The Ruki River forms above Ingende where the Momboyo River joins the Busira River from the left and flows in a west-northwest direction. It enters the Congo from the east, flowing past the north of the town of Mbandaka. The Ruki and its main tributary the Busira can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mongala
Mongala is one of the 21 provinces of the Democratic Republic of the Congo created in the 2015 repartitioning. Mongala, Équateur, Nord-Ubangi, Sud-Ubangi, and Tshuapa provinces are the result of the dismemberment of the former Équateur province. Mongala was formed from the Mongala District whose town of Lisala was elevated to capital city of the new province. Location Mongala is located at the northwest of the country on the Congo River, and borders the provinces of Tshopo, Bas-Uele, Nord-Ubangi, Sud-Ubangi, Équateur and Tshuapa. It is divided into three territories: * Bongandanga * Bumba, major town and site of a former secessionist state (1963) in the province. * Lisala The province includes the village of Yambuku Yambuku is a small village in Mongala, Mongala Province in northern Democratic Republic of the Congo. It was the center of the first documented outbreak of Ebola, Ebola virus disease, in 1976, with the World Health Organization identifying a man fr .... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aruwimi
The Aruwimi River (, ) is a tributary of the Congo River, located to the north and east of the Congo.Stanley, H.M., 1899, Through the Dark Continent, London: G. Newnes, Vol. One , Vol. Two The Aruwimi begins as the Ituri River, which rises near Lake Albert, in the savannas north of the Kibale River watershed. It then runs generally south southwest until it is joined by the Shari River which flows by Bunia. The Ituri then turns west, through the Ituri Forest, becoming the Aruwimi where the Nepoko (or Nepoki) River joins it, at the town of Bomili. The river continues westward, joining the Congo at Basoko. The length of the Aruwimi–Ituri-Nizi is about , with the Ituri being about , the Nizi about and the Aruwimi about . The Aruwimi is about wide where it joins the Congo. The watershed of the Ituri/Aruwimi is almost entirely dense forest, with just a handful of villages along its course, and crossed by roads in about four places. The Kango language ( SIL code KZY) is spoke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Length
Fish measurement is the measuring of individual fish and various parts of their anatomies, for data used in many areas of ichthyology, including taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. This measurement excludes the length of the caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes ( lampreys) and usually Elasmobranchii (shark Sharks are a group of elasmobranch cartilaginous fish characterized by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Jacques Deheyn
Jean may refer to: People * Jean (female given name) * Jean (male given name) * Jean (surname) Fictional characters * Jean Grey, a Marvel Comics character * Jean Valjean, fictional character in novel ''Les Misérables'' and its adaptations * Jean Pierre Polnareff, a fictional character from ''JoJo's Bizarre Adventure'' * Jean Luc Picard, fictional character from ''Star Trek Next Generation'' Places * Jean, Nevada, United States; a town * Jean, Oregon, United States Entertainment * Jean (dog), a female collie in silent films * "Jean" (song) (1969), by Rod McKuen, also recorded by Oliver * ''Jean Seberg'' (musical), a 1983 musical by Marvin Hamlisch Other uses * JEAN (programming language) * USS ''Jean'' (ID-1308), American cargo ship c. 1918 * Sternwheeler Jean, a 1938 paddleboat of the Willamette River See also *Jehan * * Gene (other) * Jeanne (other) * Jehanne (other) * Jeans (other) * John (other) * Valjean (other) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Museum Of Central Africa
The Royal Museum for Central Africa (RMCA) (; ; ), communicating under the name AfricaMuseum since 2018, is an ethnography and natural history museum situated in Tervuren in Flemish Brabant, Belgium, just outside Brussels. It was originally built to showcase King Leopold II's Congo Free State in the International Exposition of 1897. The museum focuses on the Congo, a former Belgian colony. The sphere of interest, however, especially in biological research, extends to the whole Congo Basin, Central Africa, East Africa, and West Africa, attempting to integrate "Africa" as a whole. Intended originally as a colonial museum, from 1960 onwards it has focused more on ethnography and anthropology. Like most museums, it houses a research department in addition to its public exhibit department. Not all research pertains to Africa (e.g. research on the archaeozoology of Sagalassos, Turkey). Some researchers have strong ties with the Royal Belgian Institute of Natural Sciences. In Nove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenacogrammus
''Phenacogrammus'' is a genus of freshwater ray-finned fishes belonging to the family Alestidae, the African tetras. These fishes are found in Western and Central Africa. Species ''Phenacogrammus'' contains the following valid species: * ''Phenacogrammus aurantiacus'' ( Pellegrin, 1930) * '' Phenacogrammus concolor'' Stiassny, Alter, Monsembula Iyaba & Liyandja, 2021 * '' Phenacogrammus deheyni'' Poll, 1945 * '' Phenacogrammus flexus'' Stiassny, Alter, Monsembula Iyaba & Liyandja, 2021 * ''Phenacogrammus interruptus The Congo tetra (''Phenacogrammus interruptus'') is a species of fish in the African tetras, African tetra family, found in the central Congo River Basin in Africa. It is commonly kept in aquaria. Description The Congo tetra has a typical ful ...'' ( Boulenger, 1899) (Congo tetra) * '' Phenacogrammus polli'' Lambert, 1961 * '' Phenacogrammus stigmatura'' ( Fowler, 1936) References Alestidae Fish of Africa Taxa named by Carl H. Eigenmann {{Cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
