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Porotergus Compsus
''Porotergus'' is a genus of ghost knifefishes found in the Amazon and Essequibo basins in tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ... South America. They are found over sandy bottoms in shallow (''P. gymnotus'') or deep rivers (two remaining). They feed on small aquatic insect larvae. They have a stubby snout and are fairly small knifefish, with the largest species reaching up to in total length. Species There are currently three described species in this genus: * '' Porotergus duende'' de Santana & Crampton, 2010 * '' Porotergus gimbeli'', named for Jacob Gimbel, who financed the expedition on which it was discovered. M. M. Ellis, 1912 * '' Porotergus gymnotus'' M. M. Ellis, 1912 UCLA flag pole The base of UCLA's central flag pole, a gift to the Universit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical
The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to as the tropical zone and the torrid zone (see geographical zone). In terms of climate, the tropics receive sunlight that is more direct than the rest of Earth and are generally hotter and wetter as they aren't affected as much by the solar seasons. The word "tropical" sometimes refers to this sort of climate in the zone rather than to the geographical zone itself. The tropical zone includes deserts and snow-capped mountains, which are not tropical in the climatic sense. The tropics are distinguished from the other climatic and biomatic regions of Earth, which are the middle latitudes and the polar regions on either side of the equatorial zone. The tropics constitute 40% of Earth's surface area and contain 36% of Earth's landmass. , the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of South America
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 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 arthropods. Most f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porotergus Gymnotus
''Porotergus'' is a genus of ghost knifefishes found in the Amazon and Essequibo basins in tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ... South America. They are found over sandy bottoms in shallow (''P. gymnotus'') or deep rivers (two remaining). They feed on small aquatic insect larvae. They have a stubby snout and are fairly small knifefish, with the largest species reaching up to in total length. Species There are currently three described species in this genus: * '' Porotergus duende'' de Santana & Crampton, 2010 * '' Porotergus gimbeli'', named for Jacob Gimbel, who financed the expedition on which it was discovered. M. M. Ellis, 1912 * '' Porotergus gymnotus'' M. M. Ellis, 1912 UCLA flag pole The base of UCLA's central flag pole, a gift to the Universit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porotergus Gimbeli
''Porotergus'' is a genus of ghost knifefishes found in the Amazon and Essequibo basins in tropical South America. They are found over sandy bottoms in shallow (''P. gymnotus'') or deep rivers (two remaining). They feed on small aquatic insect larvae. They have a stubby snout and are fairly small knifefish, with the largest species reaching up to in total length. Species There are currently three described species in this genus: * '' Porotergus duende'' de Santana & Crampton, 2010 * '' Porotergus gimbeli'', named for Jacob Gimbel, who financed the expedition on which it was discovered. M. M. Ellis, 1912 * ''Porotergus gymnotus ''Porotergus'' is a genus of ghost knifefishes found in the Amazon and Essequibo basins in tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisph ...'' M. M. Ellis, 1912 UCLA flag pole The base of UCLA's central flag pole, a gift to the University ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Gareth Richard Crampton
William is a masculine given name of Norman French origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conquest of England in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will, Wills, Willy, Willie, Liam, Bill, and Billy. A common Irish form is Liam. Scottish diminutives include Wull, Willie or Wullie (as in Oor Wullie or the play ''Douglas''). Female forms are Willa, Willemina, Wilma and Wilhelmina. Etymology William is related to the German given name ''Wilhelm''. Both ultimately descend from Proto-Germanic ''*Wiljahelmaz'', with a direct cognate also in the Old Norse name ''Vilhjalmr'' and a West Germanic borrowing into Medieval Latin ''Willelmus''. The Proto-Germanic name is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlos David Canabarro Machado De Santana
Carlos may refer to: Places ;Canada * Carlos, Alberta, a locality ;United States * Carlos, Indiana, an unincorporated community * Carlos, Maryland, a place in Allegany County * Carlos, Minnesota, a small city * Carlos, West Virginia ;Elsewhere * Carlos (crater), Montes Apenninus, LQ12, Moon; a lunar crater near Mons Hadley People * Carlos (given name), including a list of name holders * Carlos (surname), including a list of name holders Sportspeople * Carlos (Timorese footballer) (born 1986) * Carlos (footballer, born 1995), Brazilian footballer * Carlos (footballer, born 1985), Brazilian footballer Others * Carlos (Calusa) (died 1567), king or paramount chief of the Calusa people of Southwest Florida * Carlos (DJ) (born 1966), British DJ * Carlos (singer) (1943—2008), French entertainer * Carlos the Jackal, a Venezuelan terrorist *Carlos (DJ) (born 2010) Guyanese DJ Arts and entertainment * ''Carlos'' (miniseries), 2010 biopic about the terrorist Carlos the Jackal * ''C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porotergus Duende
''Porotergus'' is a genus of ghost knifefishes found in the Amazon and Essequibo basins in tropical South America. They are found over sandy bottoms in shallow (''P. gymnotus'') or deep rivers (two remaining). They feed on small aquatic insect larvae. They have a stubby snout and are fairly small knifefish, with the largest species reaching up to in total length. Species There are currently three described species in this genus: * '' Porotergus duende'' de Santana & Crampton, 2010 * ''Porotergus gimbeli'', named for Jacob Gimbel, who financed the expedition on which it was discovered. M. M. Ellis, 1912 * ''Porotergus gymnotus ''Porotergus'' is a genus of ghost knifefishes found in the Amazon and Essequibo basins in tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisph ...'' M. M. Ellis, 1912 UCLA flag pole The base of UCLA's central flag pole, a gift to the University ... [...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] |
Chordata
A chordate () is an animal of the phylum Chordata (). All chordates possess, at some point during their larval or adult stages, five synapomorphies, or primary physical characteristics, that distinguish them from all the other taxa. These five synapomorphies include a notochord, dorsal hollow nerve cord, endostyle or thyroid, pharyngeal slits, and a post-anal tail. The name “chordate” comes from the first of these synapomorphies, the notochord, which plays a significant role in chordate structure and movement. Chordates are also Bilateral symmetry, bilaterally symmetric, have a coelom, possess a circulatory system, and exhibit Metameric, metameric segmentation. In addition to the morphological characteristics used to define chordates, analysis of genome sequences has identified two conserved signature indels (CSIs) in their proteins: cyclophilin-like protein and mitochondrial inner membrane protease ATP23, which are exclusively shared by all vertebrates, tunicates and cep ... [...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] |
Ghost Knifefish
The ghost knifefishes are a family, Apteronotidae, of ray-finned fishes in the order Gymnotiformes. These fish are native to Panama and South America. They inhabit a wide range of freshwater habitats, but more than half the species in the family are found deep in rivers (typically deeper than ) where there is little or no light. The Apteronotidae should not be confused with the unrelated Notopteridae, which are also commonly called knifefishes. They are distinguished from other gymnotiform fishes by the presence of a caudal fin (all other families lack a caudal fin) as well as a fleshy dorsal organ represented by a longitudinal strip along the dorsal midline. They vary greatly in size, ranging from about in total length in the smallest species to in the largest. It has been claimed that ''Apteronotus magdalenensis'' is up to , but this is not supported by recent studies, which indicate that it does not surpass about . These nocturnal fish have small eyes. Also, sexual dimorphi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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