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Phractocephalus
The redtail catfish, ''Phractocephalus hemioliopterus'', is a pimelodid (long-whiskered) catfish. In Venezuela, it is known as cajaro, and in Brazil, it is known as pirarara, stemming from the Tupi language words ''pirá'' and ''arara''. It is the only extant species of the genus ''Phractocephalus''. This fish is common in the aquarium trade, although its massive adult size makes it unsuitable for all but the largest aquariums. They feed on fish, crustaceans and fallen fruits. They are not evaluated by IUCN. Fossil species Although the redtail catfish is the only living representative of this genus, there are other members that date back to the upper Miocene, and are only known from fossil remains. '' P. nassi'' was described in 2003, from the Urumaco Formation at Urumaco, Venezuela. Another fossil species, '' P. acreornatus,'' is known from the Solimões Formation, Acre, Brazil. This genus has a minimum age of about 13.5 million years. Description ''Phractocephalus hemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phractocephalus Hemioliopterus (Lago Maximo, Brazil, 1 September 1865)
The redtail catfish, ''Phractocephalus hemioliopterus'', is a pimelodid (long-whiskered) catfish. In Venezuela, it is known as cajaro, and in Brazil, it is known as pirarara, stemming from the Tupi language words ''pirá'' and ''arara''. It is the only extant species of the genus ''Phractocephalus''. This fish is common in the aquarium trade, although its massive adult size makes it unsuitable for all but the largest aquariums. They feed on fish, crustaceans and fallen fruits. They are not evaluated by IUCN. Fossil species Although the redtail catfish is the only living representative of this genus, there are other members that date back to the upper Miocene, and are only known from fossil remains. '' P. nassi'' was described in 2003, from the Urumaco Formation at Urumaco, Venezuela. Another fossil species, '' P. acreornatus,'' is known from the Solimões Formation, Acre, Brazil. This genus has a minimum age of about 13.5 million years. Description ''Phractocephalus hemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phractocephalus Nassi
The redtail catfish, ''Phractocephalus hemioliopterus'', is a pimelodid (long-whiskered) catfish. In Venezuela, it is known as cajaro, and in Brazil, it is known as pirarara, stemming from the Tupi language words ''pirá'' and ''arara''. It is the only extant species of the genus ''Phractocephalus''. This fish is common in the aquarium trade, although its massive adult size makes it unsuitable for all but the largest aquariums. They feed on fish, crustaceans and fallen fruits. They are not evaluated by IUCN. Fossil species Although the redtail catfish is the only living representative of this genus, there are other members that date back to the upper Miocene, and are only known from fossil remains. '' P. nassi'' was described in 2003, from the Urumaco Formation at Urumaco, Venezuela. Another fossil species, '' P. acreornatus,'' is known from the Solimões Formation, Acre, Brazil. This genus has a minimum age of about 13.5 million years. Description ''Phractocephalus hemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phractocephalus Acreornatus
The redtail catfish, ''Phractocephalus hemioliopterus'', is a pimelodid (long-whiskered) catfish. In Venezuela, it is known as cajaro, and in Brazil, it is known as pirarara, stemming from the Tupi language words ''pirá'' and ''arara''. It is the only extant species of the genus ''Phractocephalus''. This fish is common in the aquarium trade, although its massive adult size makes it unsuitable for all but the largest aquariums. They feed on fish, crustaceans and fallen fruits. They are not evaluated by IUCN. Fossil species Although the redtail catfish is the only living representative of this genus, there are other members that date back to the upper Miocene, and are only known from fossil remains. '' P. nassi'' was described in 2003, from the Urumaco Formation at Urumaco, Venezuela. Another fossil species, '' P. acreornatus,'' is known from the Solimões Formation, Acre, Brazil. This genus has a minimum age of about 13.5 million years. Description ''Phractocephalus hemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pimelodidae
The Pimelodidae, commonly known as the long-whiskered catfishes, are a family of catfishes ( order Siluriformes). Taxonomy The family Pimelodidae has undergone much revision. Currently, it contains about 30 genera and about 90 recognized and known but unnamed species. Wikipedia lists 109 species in this family. The low-eye catfish (previously family Hypophthalmidae), and thus the genus '' Hypophthalmus'', which contains four species, was reclassified with the pimelodids. This family previously included fish that are now classified under Pseudopimelodidae (previously subfamily Pseudopimelodinae) and Heptapteridae (previously subfamily Rhamdiinae). This family also previously included '' Conorhynchos conirostris'', currently ''incertae sedis''. However, a molecular analysis has shown unequivocal support for monophyly of the individual families and the genus ''Conorhynchos'' into a clade called Pimelodoidea, including Pimelodidae + Pseudopimelodidae and Heptapteridae + ''Conorhynch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Redtail Catfish - Tank - Ibaraki - Japan - Sep 2017
The term red tail may refer to the following animals: *Red-tailed hawk (''Buteo jamaicensis''), a North American bird of prey *Red-tailed boa (''Boa constrictor''), a Central American snake * Redtail catfish (''Phractocephalus hemioliopterus''), a South American freshwater fish *Red-tailed black shark or Red-tailed shark (''Epalzeorhynchos bicolor''), a common aquarium freshwater fish native to Thailand *Red-tailed black cockatoo (''Calyptorhynchus banksii''), a cockatoo native to Australia *Red-tailed tropicbird (''Phaëthon rubricauda''), a seabird *Red-tailed sportive lemur (''Lepilemur ruficaudatus''), a primate native to Madagascar * Redtail (''Ceriagrion aeruginosum'') a species of damselfly found in south-eastern Australia The term may also refer to: *Redtailing, following a fellow snowboarder too closely. *Redtail, a CRM designed exclusively for financial professionals * Redtail Nature Awareness, a nature based camp in Pictou County, Nova Scotia, Canada * A member of the T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acre (state)
Acre () is a state located in the west of the North Region of Brazil and the Amazonia Legal. Located in the westernmost part of the country, at a two-hour time difference from Brasília, Acre is bordered clockwise by the Brazilian states of Amazonas and Rondônia to the north and east, the Bolivian department of Pando to the southeast, and the Peruvian regions of Madre de Dios, Ucayali and Loreto to the south and west. The state, which has 0.42% of the Brazilian population, generates 0.2% of the Brazilian GDP. Its capital and largest city is Rio Branco. Other important places include Cruzeiro do Sul, Sena Madureira, Tarauacá and Feijó. Intense extractive activity in the rubber industry, which reached its height in the early 20th century, attracted Brazilians from many regions to the state. From the mixture of sulista, southeastern Brazil, nordestino, and indigenous traditions arose a diverse cuisine. It combines sun-dried meat (carne-de-sol) with pirarucu, a typic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Fin
A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through convergent evolution they have independently evolved external superficial fish-like body plans adapted to their marine environments, including most numerously fish, but also mammals such as cetaceans (whales, dolphins, and porpoises), and even extinct ancient marine reptiles such as various known species of ichthyosaurs. Most species have only one dorsal fin, but some have two or three. Wildlife biologists often use the distinctive nicks and wear patterns which develop on the dorsal fins of large cetaceans to identify individuals in the field. The bony or cartilaginous bones that support the base of the dorsal fin in fish are called ''pterygiophores''. Functions The main purpose of the dorsal fin is to stabilize the animal against rollin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...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] |
Amazon Basin
The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, and Venezuela. Most of the basin is covered by the Amazon rainforest, also known as Amazonia. With a area of dense tropical forest, this is the largest rainforest in the world. Geography The Amazon River begins in the Andes Mountains at the west of the basin with its main tributary the Marañón River and Apurimac River in Peru. The highest point in the watershed of the Amazon is the second biggest peak of Yerupajá at . With a length of about before it drains into the Atlantic Ocean, it is one of the two longest rivers in the world. A team of scientists has claimed that the Amazon is longer than the Nile, but debate about its exact length continues. The Amazon system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Essequibo River
The Essequibo River (Spanish: ''Río Esequibo'' originally called by Alonso de Ojeda ''Río Dulce'') is the largest river in Guyana, and the largest river between the Orinoco and Amazon. Rising in the Acarai Mountains near the Brazil–Guyana border, the Essequibo flows to the north for through forest and savanna into the Atlantic Ocean. With a total drainage basin of and an average discharge of . Territory near the river is argued over by Venezuela and Guyana. Venezuela considers that the natural border according to the divortium aquarum that delimits the eastern margin of that country with the Cooperative Republic of Guyana is "by law", although due to the territorial dispute between the two countries for the sovereignty of Guayana Esequiba, it is "De facto administered and occupied for the most part by the former English colony of British Guiana, present-day Guyana. Geography The river runs through the Guianan moist forests ecoregion. The average annual rainfall in the catc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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