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Eigenmannia Robsoni
''Eigenmannia robsoni'' is a species of glass knifefish in the family Sternopygidae. It is found in the Parnaíba basin of north-eastern Brazil. Guilherme Moreira Dutra, Telton Pedro Anselmo Ramos and Naércio Aquino Menezes. 2022. Description of Three New Species of Eigenmannia (Gymnotiformes: Sternopygidae) from the rio Mearim and rio Parnaíba basins, Northeastern Brazil. Neotrop Ichthyol. 20(1);e210117. DOI: 10.1590/1982-0224-2021-0117 Etymology The species name of “robsoni” is in honor of Robson Tamar da Costa Ramos {{Short pages monitor [Baidu] |
Guilherme Moreira Dutra
Guilherme is a Portuguese given name, equivalent to William in English. The feminine form of this name is Guilhermina. Diminutive forms include Guilhermino. Vilma (Portuguese form of Wilma) is another female variant of the name. Brazilian footballers *Guilherme de Cássio Alves (1974), retired striker * Guilherme Camacho (1990), who currently plays for Corinthians * Guilherme Conceição Cardoso (1983), who is currently on loan to Vitória, from Cruzeiro *Guilherme Finkler (1985), who currently plays for Wellington Phoenix FC *Guilherme Milhomem Gusmão (1988), who currently plays for Atlético Mineiro *Guilherme de Paula Lucrécio (1986), who currently plays for Milsami Orhei *Guilherme Alvim Marinato (1985), who currently plays for Lokomotiv Moscow *Guilherme Costa Marques (1991), who currently plays for Legia Warsaw *Guilherme do Prado (1981), who last played for Chicago Fire *Guilherme Oliveira Santos (1988), who currently plays for Valladolid * Guilherme Schettine Guima ... [...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] |
Glass Knifefish
Glass knifefishes are fishes in the family Sternopygidae in the order Gymnotiformes. Species are also known as rattail knifefishes. These fishes inhabit freshwater streams and rivers in Panama and South America. Many sternopygid species are specialized for life in the deep (more than ) swiftly moving waters of large river channels, like that of the Amazon and its major tributaries where they have been observed swimming vertically. ''Sternopygus'' species inhabit both streams and rivers. Many species are highly compressed laterally and translucent in life. These fish have villiform (brush-like) teeth on the upper and lower jaws. The snout is relatively short. The eyes are relatively large, with a diameter equal to or greater than the distance between nares. The anal fin originates at the isthmus (the strip of flesh on the ventral surface between the gill covers). The maximum length is in ''Sternopygus macrurus''. ''Eigenmannia vicentespelaea'' is the only cave-dwelling gymnotif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parnaíba Basin
The Parnaíba Basin (Portuguese: ''Bacia do Parnaíba'') is a large cratonic sedimentary basin located in the North and Northeast portion of Brazil. About 50% of its areal distribution occurs in the state of Maranhão, and the other 50% occurring in the state of Pará, Piauí, Tocantins, and Cearâ. It is one of the largest Paleozoic basins in the South American Platform. The basin has a roughly ellipsoidal shape, occupies over 600,000 km2, and is composed of ~3.4 km of mainly Paleozoic sedimentary rock that overlies localized rifts. The basin as named after the Parnaíba River, which is approximately 1,400 km (870 mi) long, and runs relatively parallel to the major axis of the basin. Regional Setting It is located between the Amazonian Craton to the west and the São Francisco Craton to the south east. The São Luís Craton sits north of the basin and the Borborema Province is the east. The basin currently covers a Precambrian basement composed of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robson Tamar Da Costa Ramos
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Knifefish Of Brazil
Knifefish may refer to several knife-shaped fishes: *The Neotropical or weakly electric knifefishes, order Gymnotiformes, containing five families: **Family Gymnotidae (banded knifefishes and the electric eel) **Family Rhamphichthyidae (sand knifefishes) **Family Hypopomidae (bluntnose knifefishes) **Family Sternopygidae (glass and rat-tail knifefishes) **Family Apteronotidae (ghost knifefishes) *The featherbacks, family Notopteridae. *The aba, ''Gymnarchus niloticus'' *Four other unrelated fish species not in any of the above families: **Grey knifefish, ''Bathystethus cultratus''. **Blue knifefish, ''Labracoglossa nitida''. **Collared knifefish or finscale razorfish, ''Cymolutes torquatus''. **Jack-knifefish, ''Equetus lanceolatus''. See also *Knifefish (robot) The Knifefish is an autonomous unmanned underwater vehicle (UUV) under development by General Dynamics Mission Systems and Bluefin Robotics for the United States Navy. It is a propeller-driven minesweeping robot des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Guilherme Moreira Dutra
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] |
