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Potamotrygon Ocellata
''Potamotrygon'' is a genus of freshwater stingrays in the family Potamotrygonidae native to the rivers of South America, and sometimes seen in the aquarium trade. It inhabits rivers of tropical and subtropical climates, especially those of the Amazon basin and is virtually present in all South American countries, except for Chile. Like other stingrays, the fishes of this genus have venomous barbs at the base of their tails, and their stings are dangerous to humans. It is said that the natives of South America fear the stingray more than they do fear the piranha. ''Potamotrygon'' vary considerably in color, pattern and size, with the maximum disc width ranging from in ''P. wallacei'' to in ''P. brachyura''. In the aquarium Though freshwater stingray of other genera do appear in the trade, most are from ''Potamotrygon''. They are best kept with a deep, sandy substrate, in which they bury themselves, often with only the eyes visible. They are not territorial with other animals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamotrygon Motoro
The ocellate river stingray (''Potamotrygon motoro''), also known as the peacock-eye stingray or black river stingray, is a species of freshwater stingray in the family Potamotrygonidae. It was the first species to be described in the family and is also the most widespread, ranging throughout much of the Río de la Plata Basin, Río de la Plata, Amazon basin, Amazon, Mearim River, Mearim and Orinoco basins in tropical and subtropical South America.Loboda, T.S.; and de Carvalho, M.R. (2013)Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae).Neotropical Ichthyology 11(4): 693–737. It is sometimes kept in Aquarium, aquaria. Taxonomy ''Potamotrygon motoro'' varies significantly in appearance and Morphology (biology), morphology over its large range,Loboda, T.S. (2010). Revisão taxonômica e morfológica de Potamotrygon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Territorial
A territory is an area of land, sea, or space, belonging or connected to a particular country, person, or animal. In international politics, a territory is usually a geographic area which has not been granted the powers of self-government, i.e. an area that is under the jurisdiction of a sovereign state. As a subdivision, a territory in most countries is an organized division of an area that is controlled by a country but is not formally developed into, or incorporated into, a political unit of that country, which political units are of equal status to one another and are often referred to by words such as "provinces", "regions", or "states". In its narrower sense, it is "a geographic region, such as a colonial possession, that is dependent on an external government." Etymology The origins of the word "territory" begin with the Proto-Indo-European root ''ters'' ('to dry'). From this emerged the Latin word ''terra'' ('earth, land') and later the Latin word ''territorium'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ricardo De Souza Rosa
Ricardo is the Spanish and Portuguese cognate of the name Richard. It derived from Proto-Germanic ''*rīks'' 'king, ruler' + ''*harduz'' 'hard, brave'. It may be a given name, or a surname. People Given name * Ricardo de Araújo Pereira (born 1974), Portuguese comedian * Ricardo Arjona (born 1964), Guatemalan singer * Ricardo Arona (born 1978), Brazilian mixed martial artist * Ricardo Ávila (born 1997), Panamanian footballer * Ricardo Bierhals (born 1990), Brazilian footballer * Ricardo Bralo (1916–?), Argentine long-distance runner * Ricardo Bombine Pimentel (born 1978), Brazilian musician * Ricardo Bueno Fernández (1940-2015), Spanish politician * Ricardo Busquets (born 1974), Puerto Rican swimmer *Ricardo Cardeno (born 1971), Colombian triathlete * Ricardo Carvalho (born 1978), Portuguese footballer * Ricardo Cortez (1900-1977), American actor * Ricardo Darín (born 1957), Argentine actor * Ricardo da Silva (born 1980), Cape Verdean-Portuguese footballer *Ricardo Esgaio, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamotrygon Boesemani
''Potamotrygon boesemani'', the Suriname freshwater stingray or Boeseman's river stingray, is a type of freshwater tropical ray found exclusively in a river shared by Suriname and Guyana Guyana, officially the Co-operative Republic of Guyana, is a country on the northern coast of South America, part of the historic British West Indies. entry "Guyana" Georgetown, Guyana, Georgetown is the capital of Guyana and is also the co .... Description This species can be distinguished from its congeners through several characteristics, such as the darker brown dorsal region, with irregular deep orange-red ocellated spots and encircled by irregular broad black rings; more intensely colored irregular ocelli; and the absence of ocelli on the tail. The largest documented female specimen has a size of 42.7 cm disc width. Habitat & distribution This stingray is endemic to Courantyne River in Suriname and Guyana. There are no details about its habitat's depth, but it is suggest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamotrygon Amazona
''Potamotrygon amazona'', the Upper Amazon raspy freshwater stingray, is a type of freshwater tropical stingray found in the state of Amazonas and Roraima Roraima ( ) is one of the 26 states of Brazil. Located in the country's North Region, it is the northernmost and most geographically and logistically isolated state in Brazil. It is bordered by the state of Pará to the southeast, Amazonas t ..., Brazil. Description This species can be distinguished from its congeners through several characteristics: sturdy and thick disc; dark brown to gray dorsal color; body covered with many small whitish-beige irregular spots with small ocelli sometimes present; disc entirely covered by denticles; very prickly robust, wide, and long tail; and relatively short cartilaginous rod. It can reach the maximum size of 40 - 58 cm disc width (DW). Habitat & distribution This stingray is endemic to the freshwater basins of Rio Jutai and Rio Juruá in Amazonas, and Rio Branco in Roraima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thiago Silva Loboda
Thiago is the Portuguese equivalent of the names Jacob and James. It is the archaic spelling of the name Tiago, presently mostly used in Brazil; in Portugal, the modern spelling largely prevails. It is also very popular in Argentina. * Thiago (footballer, born September 1988), Thiago de Lima, Brazilian footballer * Thiago (footballer, born October 1988), Thiago Pinto Borges, Brazilian footballer * Thiago de Los Reyes (born 1989), Brazilian television and film actor * Thiago Alcântara (born 1991), Brazilian-Spanish footballer, known simply as Thiago * Thiago Almada (born 2001), Argentine footballer * Thiago Alves (tennis) (born 1982), Brazilian tennis player * Thiago Alves (fighter) (born 1983), Brazilian mixed martial artist * Thiago Soares Alves (born 1986), Brazilian volleyball player * Thiago Ávila (born 1986), Brazilian humanitarian activist * Thiago Bordin (born 1983), Brazilian ballet drancer * Thiago Cionek (born 1986), Polish-Brazilian footballer * Thiago Corrêa (born ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamotrygon Amandae
''Potamotrygon amandae'', or Amanda's freshwater stingray, is a type of freshwater tropical ray found in Paraná River, South America. Description This species can be distinguished from its congeners on the same genus through several characteristics, such as grayish-dark brown dorsal color, occasional presence of bicolored (white-light gray/light yellow) ocelli on dorsal disc surrounded by black peripheral ring, grayish ventral disc, greater spiracular length, and relatively longer slender tail. The largest maximum size of this ray is believed to be around 34 cm disc width. Habitat & distribution This stingray is found mainly in Paraná-Paraguay River basin, encompassing Argentina, Paraguay, Brazil, and a small area in Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamotrygon Albimaculata
''Potamotrygon'' is a genus of freshwater stingrays in the family Potamotrygonidae native to the rivers of South America, and sometimes seen in the aquarium trade. It inhabits rivers of tropical and subtropical climates, especially those of the Amazon basin and is virtually present in all South American countries, except for Chile. Like other stingrays, the fishes of this genus have venomous barbs at the base of their tails, and their stings are dangerous to humans. It is said that the natives of South America fear the stingray more than they do fear the piranha. ''Potamotrygon'' vary considerably in color, pattern and size, with the maximum disc width ranging from in ''P. wallacei'' to in ''P. brachyura''. In the aquarium Though freshwater stingray of other genera do appear in the trade, most are from ''Potamotrygon''. They are best kept with a deep, sandy substrate, in which they bury themselves, often with only the eyes visible. They are not territorial with other anim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcelo Rodrigues De Carvalho
Marcelo is a given name, the Spanish and Portuguese form of Marcellus. Marcelo may refer to: Given name * Marcelo Costa de Andrade (born 1967), Brazilian serial killer, rapist, and necrophile * Marcelo Arriagada (born 1973), Chilean road cyclist * Marcelo Barovero (born 1984), Argentine football goalkeeper * Marcelo Barticciotto (born 1967), Argentine-born Chilean former footballer and manager * Marcelo Bordon (born 1976), Brazilian footballer * Marcelo Cabo (born 1966), Brazilian football manager * Marcelo Carrusca (born 1983), Argentine-Australian professional footballer * Marcelo Cassaro (born 1970), Brazilian author of comics * Marcelo Chamusca (born 1966), Brazilian professional football manager and former player * Marcelo Chierighini (born 1991), Brazilian competitive swimmer * Marcelo Cirino (born 1992), Brazilian footballer * Marcelo D'Andrea, Argentine film actor * Marcelo Del Debbio (born 1974), Brazilian architect and writer * Marcelo Demoliner (born 1989), Brazilian t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
João Pedro Fontenelle
João is a given name of Portuguese origin. It is equivalent to the given name John. The diminutive is Joãozinho and the feminine is Joana. It is widespread in Portuguese-speaking countries. Notable people with the name are enumerated in the sections below. Kings * João I of Portugal * João II of Portugal * João III of Portugal * João IV of Portugal * João V of Portugal * João VI of Portugal * João I of Kongo, ruled 1470–1509 * João II of Lemba or João Manuel II of Kongo, ruled 1680–1716 * Dharmapala of Kotte, last King of the Kingdom of Kotte, reigned 1551–1597 Princes * João Manuel, Prince of Portugal (1537–1554), son of John III * Infante João, Duke of Beja (1842–1861) Arts and literature * João Borsch, Portuguese musician * João Bosco, Brazilian musician * João Cabral de Melo Neto, Brazilian poet and diplomat * João César Monteiro, Portuguese film director * Joao Constancia, Filipino singer, actor and dancer * João Donato, Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamotrygon Adamastor
''Potamotrygon adamastor'', the Branco River freshwater stingray, is a type of freshwater tropical ray found exclusively in the state of Roraima Roraima ( ) is one of the 26 states of Brazil. Located in the country's North Region, it is the northernmost and most geographically and logistically isolated state in Brazil. It is bordered by the state of Pará to the southeast, Amazonas t ..., Brazil. Description This species can be distinguished from its congeners through several characteristics, such as dark gray dorsal disc; body covered with small yellow-white ocelli with a slender dark contour; small irregular spots on disc margin (sometimes); and robust and wide tail base.The size of this tropical stingray ranges from 45 cm to 62 cm disc width (DW). Habitat & distribution It is endemic to a single locality of Uriracuera river, an upper branch of Rio Branco river system, Roraima, Brazil. This demersal species tends to inhabit the turbid wetlands with sandy sediments. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chondrichthyes
Chondrichthyes (; ) is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage. They can be contrasted with the Osteichthyes or ''bony fish'', which have skeletons primarily composed of bone tissue. Chondrichthyes are aquatic vertebrates with paired fins, paired nares, placoid scales, conus arteriosus in the heart, and a lack of opercula and swim bladders. Within the infraphylum Gnathostomata, cartilaginous fishes are distinct from all other jawed vertebrates. The class is divided into two subclasses: Elasmobranchii (sharks, rays, skates and sawfish) and Holocephali ( chimaeras, sometimes called ghost sharks, which are sometimes separated into their own class). Extant chondrichthyans range in size from the finless sleeper ray to the over whale shark. Anatomy Skeleton The skeleton is cartilaginous. The notochord is gradually replaced by a vertebral column during development, e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
