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Peckoltia Sabaji
''Peckoltia sabaji'' is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the basins of the Rupununi, the Essequibo River, and the Takutu River in Guyana, as well as the basins of the Casiquiare canal, the Rio Negro, the Cinaruco River, and the Orinoco in Venezuela. It is usually found among boulders in medium to large rivers. The species reaches 19.8 cm (7.8 inches) SL and is of disputed classification. ''P. sabaji'' was originally placed in the genus ''Peckoltia'' by Jonathan W. Armbruster of Auburn University in 2003, although Armbruster transferred the species to the genus ''Hemiancistrus'' in 2008 following a review of ''Peckoltia'', and ''Hemiancistrus sabaji'' is still accepted by sources such as FishBase. In 2015, Armbruster, alongside Nathan K. Lujan, Nathan R. Lovejoy, and Hernán López-Fernández, determined that ''P. sabaji'' should be moved out of ''Hemiancistrus'' and returned to ''Peckoltia'', and a subsequent ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of 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 produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, 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 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 specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venezuela
Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in the Caribbean Sea. It has a territorial extension of , and its population was estimated at 29 million in 2022. The capital and largest urban agglomeration is the city of Caracas. The continental territory is bordered on the north by the Caribbean Sea and the Atlantic Ocean, on the west by Colombia, Brazil on the south, Trinidad and Tobago to the north-east and on the east by Guyana. The Venezuelan government maintains a claim against Guyana to Guayana Esequiba. Venezuela is a federal presidential republic consisting of 23 states, the Capital District and federal dependencies covering Venezuela's offshore islands. Venezuela is among the most urbanized countries in Latin America; the vast majority of Venezuelans live in the cities of the n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancistrini
Ancistrini is a tribe of catfishes of the family Loricariidae. Most are restricted to tropical and subtropical South America, but there are also several genus (''Ancistrus'', '' Chaetostoma'', ''Hemiancistrus'' and ''Lasiancistrus'') in southern Central America. Taxonomy Ancistrini have previously been considered a loricariid subfamily. However, the subfamily Hypostominae would be paraphyletic if Ancistrinae continued to be recognized. To continue recognizing the monophyly of this group while returning it to Hypostominae, Hypostominae was broken into several tribes. Pterygoplichthyini is sister to the tribe Ancistrini, which shares the derived presence of an evertible patch of plates on the cheek. Description Most Ancistrini species (except for some ''Pseudancistrus'' and ''Spectracanthicus'') can be separated from all other loricariids except the Pterygoplichthyini by the presence of evertible cheek plates with hypertrophied odontode Odontodes, or dermal teeth, are hard structu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Taxonomic Information System
The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagency group within the US federal government, involving several US federal agencies, and has now become an international body, with Canadian and Mexican government agencies participating. The database draws from a large community of taxonomic experts. Primary content staff are housed at the Smithsonian National Museum of Natural History and IT services are provided by a US Geological Survey facility in Denver. The primary focus of ITIS is North American species, but many biological groups exist worldwide and ITIS collaborates with other agencies to increase its global coverage. Reference database ITIS provides an automated reference database of scientific and common names for species. As of May 2016, it contains over 839,000 scientific names, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancistomus
''Ancistomus'' is a genus of suckermouth armored catfishes found in shallow waters in rapidly flowing rivers in the southeastern Amazon basin in Brazil. Species There are currently 5 recognized species in this genus: * '' Ancistomus feldbergae'' R. R. de Oliveira, Rapp Py-Daniel, Zuanon & M. S. Rocha, 2012 * ''Ancistomus micrommatos'' A. R. Cardoso & P. H. F. Lucinda, 2003 * '' Ancistomus snethlageae'' Steindachner, 1911 * ''Ancistomus spilomma'' A. R. Cardoso & P. H. F. Lucinda, 2003 * ''Ancistomus spinosissimus ''Ancistomus spinosissimus'' is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it is known only from the upper and middle Tocantins River basin in Brazil. The species reaches 12.7 cm (5 inch ...'' A. R. Cardoso & P. H. F. Lucinda, 2003 References Fish of South America Hypostominae {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancistrus
''Ancistrus'' is a genus of nocturnal freshwater fish in the family Loricariidae of order Siluriformes, native to freshwater habitats in South America and Panama. Fish of this genus are common in the aquarium trade where they are known as bushynose or bristlenose catfish. In the aquarium hobby they are often referred to as bushynose or bristlenose plecos instead, but this may lead to confusion as "pleco" usually is used for ''Hypostomus plecostomus'' and its allies and is often used as a catchall term for any loricariids remotely resembling that species. Taxonomy The type species is ''Ancistrus cirrhosus''. This genus is the largest genus within the tribe Ancistrini. The name ancistrus derives from the Ancient Greek ''agkistron'' "hook" – a reference to the form of the cheek odontodes. The genera ''Pristiancistrus'', ''Thysanocara'' and ''Xenocara'' are now synonyms of ''Ancistrus''. Description ''Ancistrus'' species show all the typical features of the Loricariidae. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FishBase
FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web.Marine Fellow: Rainer Froese ''Pew Environment Group''. Over time it has "evolved into a dynamic and versatile ecological tool" that is widely cited in scholarly publications. FishBase provides comprehensive species data, including information on , geographical distribution, and |
Hemiancistrus
''Hemiancistrus'' is a genus of suckermouth armored catfishes. These species are native to South America. The taxonomy of this genus is complex and unclear, and major work has to be done. Many of these fish are popular aquarium fish. Taxonomy ''Hemiancistrus'' is a genus within the tribe Ancistrini of the subfamily Hypostominae. This genus has long been used as a "dump" for Loricariid species; fish with unclear relationships have been classified as members of this genus. As such, this taxon is not monophyletic. At this point, many undescribed species remain. This genus and the closely related ''Peckoltia'' may be synonymous, as neither genus is supported by synapomorphies. ''Hemiancistrus'' species differ from other members of the ''Panaque'' clade lacking the synapomorphies of the other genera and having the dentaries meeting at an angle greater than 120°; in ''Peckoltia'' species, the dentaries meet at less than 90° Generally, ''Peckoltia'' are considered to be those that h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auburn University
Auburn University (AU or Auburn) is a public land-grant research university in Auburn, Alabama. With more than 24,600 undergraduate students and a total enrollment of more than 30,000 with 1,330 faculty members, Auburn is the second largest university in Alabama. It is one of the state's two public flagship universities. The university is classified among "R1: Doctoral Universities – Very High Research Activity" and its alumni include 5 Rhodes Scholars and 5 Truman Scholars. Auburn was chartered on February 1, 1856, as East Alabama Male College, a private liberal arts school affiliated with the Methodist Episcopal Church, South. In 1872, under the Morrill Act, it became the state's first land-grant university and was renamed as the Agricultural and Mechanical College of Alabama. In 1892, it became the first four-year coeducational school in Alabama, and in 1899 was renamed Alabama Polytechnic Institute (API) to reflect its changing mission. In 1960, its name was changed t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peckoltia
''Peckoltia'' is a genus of small South American Loricariidae, armored suckermouth catfishes. Many of these fish are popular aquarium fish. Taxonomy ''Peckoltia'' is a Basal (phylogenetics), basal genus within the tribe Ancistrini of the subfamily Hypostominae. This genus is paraphyly, paraphyletic. At this point, many undescribed taxon, undescribed species remain. Many of the possibly undescribed species have an identification through the L-number system. ''Peckoltia'' species can be distinguished from most other in the genera in the tribe Ancistrini by having a lateral ridge on the opercle that usually has no odontodes and the teeth on their upper jaw (dentary) forming an angle under 90 degrees; while some genera also have an angled dentary, ''Peckoltia'' species lack synapomorphy, synapomorphies of these genera. This genus and the closely related ''Hemiancistrus'' may be synonym (taxonomy), synonymous, as neither genus is supported by synapomorphies. Generally, ''Peckoltia'' a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orinoco
The Orinoco () is one of the longest rivers in South America at . Its drainage basin, sometimes known as the Orinoquia, covers , with 76.3 percent of it in Venezuela and the remainder in Colombia. It is the fourth largest river in the world by discharge volume of water. The Orinoco River and its tributaries are the major transportation system for eastern and interior Venezuela and the Llanos of Colombia. The environment and wildlife in the Orinoco's basin are extremely diverse. Etymology The river's name is derived from the Warao term for "a place to paddle", itself derived from the terms ''güiri'' (paddle) and ''noko'' (place) i.e. a navigable place. History The mouth of the Orinoco River at the Atlantic Ocean was documented by Christopher Columbus on 1 August 1498, during his third voyage. Its source at the Cerro Delgado–Chalbaud, in the Parima range, was not explored until 453 years later, in 1951. The source, near the Venezuelan–Brazilian border, at ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, ''Vandellia cirrhosa''. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus ''Corydoras'', are important in the aquarium hobby. Many catfish are nocturnal, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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