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Bluntnose Knifefish
The Hypopomidae are a family of fishes in the order Gymnotiformes known as the bluntnose knifefish. They may also be called grass or leaf knifefishes. These electric fish are not often eaten, of little commercial importance, rarely kept as aquarium fish, and poorly studied; however, species in this family may constitute a significant fraction of the biomass in the areas they inhabit. These fish originate from fresh water in Panama and South America. The Hypopomidae are confined to the humid neotropics, ranging the Río de la Plata of Argentina (35°S) to the Río Tuira of Panama (8°N). Hypopomids are known from the continental waters of all South American countries except Chile, and are most diverse in the Amazon Basin. Description Teeth are absent on the oral jaws. Unlike the closely related Rhamphichthyidae, species of this family do not have a tubular snout, but a blunt, short one. Also, the nostrils are well separated. This family contains the smallest gymnotiforms, ''Micro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steatogenys Elegans
''Steatogenys elegans'', the barred knifefish, is a species of Hypopomidae (bluntnose knifefishes) found in tropical South America. It is the type species of its genus. It is an electric fish found in a wide range of freshwater habitats in the Amazon, 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 wor ... and Essequibo river basins. It reaches almost in total length. References Hypopomidae Weakly electric fish Fish of Bolivia Freshwater fish of Brazil Freshwater fish of Colombia Freshwater fish of Ecuador Fish of Guyana Freshwater fish of Peru Fish of Venezuela Fish of the Amazon basin Fish described in 1880 Taxa named by Franz Steindachner {{gymnotiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachyhypopomus
''Brachyhypopomus'' is a genus of fish in the family Hypopomidae (bluntnose knifefish) native primarily to tropical and subtropical South America (south to the Río de la Plata Basin), although a single species, ''B. occidentalis'', also occurs in Panama and Costa Rica.Crampton, W.G.R., de Santana, C.D., Waddell, J.C. & Lovejoy, N.R. (2016): Clifford,W,A taxonomic revision of the Neotropical electric fish genus ''Brachyhypopomus'' (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species.''Neotropical Ichthyology, 14 (4): e150146.'' They are found in a wide range of static or slow-flowing freshwater habitats such as edges of rivers, streams, floodplains and swamps, but they are absent from deep river channels (a habitat of many other knifefish). There are both species in well-oxygenated waters and poorly oxygenated waters; those in the latter have adaptions that allow them to survive this like larger gills or the capability of gulping up mouthfuls of air fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypopomidae
The Hypopomidae are a family of fishes in the order Gymnotiformes known as the bluntnose knifefish. They may also be called grass or leaf knifefishes. These electric fish are not often eaten, of little commercial importance, rarely kept as aquarium fish, and poorly studied; however, species in this family may constitute a significant fraction of the biomass in the areas they inhabit. These fish originate from fresh water in Panama and South America. The Hypopomidae are confined to the humid neotropics, ranging the Río de la Plata of Argentina (35°S) to the Río Tuira of Panama (8°N). Hypopomids are known from the continental waters of all South American countries except Chile, and are most diverse in the Amazon Basin. Description Teeth are absent on the oral jaws. Unlike the closely related Rhamphichthyidae, species of this family do not have a tubular snout, but a blunt, short one. Also, the nostrils are well separated. This family contains the smallest gymnotiforms, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsternarchus
''Microsternarchus'' is a genus of bluntnose knifefish that is found in creeks and streams, often in areas with submerged vegetation, roots and leaf litter, in the Amazon, Orinoco, Essequibo–Rupununi and Río de la Plata basins in South America.Cox Fernandes, C., Nogueira, A., Williston, A. & Alves-Gomes, J.A. (2015): A new species of electric knifefish from the rio Negro, Amazon basin (Gymnotiformes: Hypopomidae, Microsternarchini). ''Proceedings of the Academy of Natural Sciences of Philadelphia, 164 (1): 213-227.'' The two recognized species are both small knifefish, with the largest being ''M. bilineatus'' at up to in total length. The other is ''M. brevis'', which at up to only is the world's smallest knifefish. ''Microsternarchus'' are very similar to ''Brachyhypopomus ''Brachyhypopomus'' is a genus of fish in the family Hypopomidae (bluntnose knifefish) native primarily to tropical and subtropical South America (south to the Río de la Plata Basin), although a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypopygus
''Hypopygus'' is a genus of South American gymnotiform knifefishes native to the Amazon, Orinoco and upper Paraguay basins, as well as rivers in the Guianas. They are often common, and found near submerged roots, aquatic vegetation and leaf-litter in streams, edges of rivers and floodplains. They are regularly found among vegetation in floating meadows, a habitat that often contains little oxygen, but they are well-adapted to this. They are well-camouflaged and brown in color with a banded/mottled pattern. They generally resemble the related '' Steatogenys'', but are smaller, reaching up to in total length depending on the exact species of ''Hypopygus''. The smallest is ''H. hoedemani'', which is the second-smallest knifefish, after ''Microsternarchus brevis''. They are nocturnal and feed on small invertebrates. During the day they remain hidden, often in groups that may number several dozen individuals. Taxonomy and species ''Hypopygus'' has traditionally been included in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akawaio (fish)
''Akawaio penak'' is a species of bluntnose knifefish native to the upper Mazaruni River, Guyana. This species is the only known member of its genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ....Maldonado-Ocampo, J.A., López-Fernández, H., Taphorn, D.C., Bernard, C.R., Crampton, W.G.R. & Lovejoy, N.R. (2014)''Akawaio penak'', a new genus and species of Neotropical electric fish (Gymnotiformes, Hypopomidae) endemic to the upper Mazaruni River in the Guiana Shield.''Zoologica Scripta, 43 (1): 24–33.'' References Hypopomidae Fish described in 2014 {{Gymnotiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus '' Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should clearly demons ... [...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 |
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] |
