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Characoidei
Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationships of the Characidiinae and phylogeny of characiform fishes (Teleostei: Ostariophysi)", ''Phylogeny and Classification of Neotropical Fishes'', L.R. Malabarba, R.E. Reis, R.P. Vari, Z.M. Lucena, eds. (Porto Alegre: Edipucr) 1998:123-144. Taxonomy The Characiformes form part of a series called the Otophysi within the superorder Ostariophysi. The Otophysi contain three other orders, Cypriniformes, Siluriformes, and Gymnotiformes. The Characiformes form a group known as the Characiphysi with the Siluriformes and Gymnotiformes. The order Characiformes is the sister group to the orders Siluriformes and Gymnotiformes, though this has been debated in light of recent molecular evidence. Originally, the characins were all grouped within a single f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parodontidae
The Parodontidae are a family of fresh water fish of the order Characiformes. The three genera include about 32 species, though several are undescribed. These fish are generally benthic and live in mountain streams of eastern Panama and South America. It was formerly considered a subfamily of the family Hemiodontidae. See also *Characiformes Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationshi ... References Ray-finned fish families {{characiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenuchidae
The Crenuchidae, South American darters, are a family of freshwater fish of the order Characiformes. The 12 genera include about 74 species, though several species are undescribed. These fish are relatively small (usually under in standard length) and originate from eastern Panama and South America. Both subfamilies were previously included in the family Characidae, and were placed in a separate family by Buckup, 1998. Buckup, 1993, revised all genera, except ''Characidium''.Buckup, P.A. 1993. Review of the characidiin fishes (Teleostei: Characiformes), with descriptions of four new genera and ten new species. Ichthyological Exploration of Freshwaters 4(2):97-154. See also *List of fish families This is a list of fish families sorted alphabetically by scientific name. There are 525 families in the list. __NOTOC__ A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - R - S - T - U - V - W - X - Y - Z --- ... References Ray-finned fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyphessobrycon Bentosi
''Hyphessobrycon bentosi'', the Bentos tetra,ornate tetra, is a species of characin fish found in sluggish tributaries at the Amazon Basin in Brazil and Peru. Occasionally, it makes its way into the aquarium trade. It has often been confused with the rosy tetra. Named in memory of a Colonel Bentos, who was a volunteer on the Thayer Expedition to Brazil (1865-1866), during which the type specimen was collected. Description The ornate tetra can grow up to 4 cm (1.6"). It is silvery pink, and has a dark spot around the gills, which distinguishes it from the rosy tetra. Its dorsal fin is black and has a white tip on it. Males have longer dorsal and anal fins and appear slightly larger than females. Distribution and habitat The ornate tetra lives in sluggish tributaries of the Amazon River, associated flood plain lakes. It is a benthopelagic fish and is often found in creeks and around submerged vegetation. Diet It is an omnivorous fish that feeds on small invertebrates. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiodontidae
The Hemiodontidae are a small family of freshwater characins found in northern South America, south to the Paraná-Paraguay Basin. The larger species are popular food fish. Hemiodontids have a streamlined body shape; many are fast-swimming, and are able to leap out of the water to escape predators. The adults of all species except ''Micromischodus sugillatus'' have no teeth on their lower jaws. Most species have a round spot on the side of the midbody and a stripe along the lower lobe of the caudal fin. The largest hemiodontids are around in length. Genera The family has around 29 known species, as well as several undescribed species, in five genera: *''Anodus'' *''Argonectes'' *''Bivibranchia'' *''Hemiodus'' *'' Micromischodus'' References *Nelson, Joseph S. (2006). ''Fishes of the World ''Fishes of the World'' by the American ichthyologist Joseph S. Nelson (1937–2011) is a standard reference for fish systematics. Now in its fifth edition (2016), the work is a compreh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass Headstander
The glass headstander, (''Charax gibbosus''), is a species of fish in the genus ''Charax''. commonly known as the transparent tetra. Description The glass headstander can grow up to 14 cm long and weigh up to 30 grams. Taxonomy ''Eucynopotamus gibbosus'' and ''Salmo gibbosus'' are taxonomic synonyms for ''Charx gibbosus'' Distribution and habitat The glass headstander mainly lives in South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe .... References External links * * Characidae Freshwater fish of South America {{Characiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triportheidae
Triportheidae is a family of characiform Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationshi ... fishes, including about 23 species. This family was raised from the status of a subfamily to family based on extensive analysis of characiform species.Oliveira, C., Avelino, G.S., Abe, K.T., Mariguela, T.C., Benine, R.C., Orti, G., Vari, R.P., & Correa e Castro, R.M. (2011)Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling. ''BMC Evolutionary Biology, 11: 275. doi: 10.1186/1471-2148-11-275'' References Characiformes Ray-finned fish families {{Characiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarumaniidae
''Tarumania'' is a genus of freshwater fish first described in 2017. It contains a single species, ''Tarumania walkerae'', and constitutes the only genus in the family Tarumaniidae. ''T. walkerae'' is a predatory species that hunts among the leaf litter of the flooded forest floor in the Rio Negro drainage basin. Discovery and taxonomy The species first came to the attention of scientists in 2002 in the form of a poorly preserved juvenile specimen collected as part of a survey. The specimen possessed many unusual traits and could not be identified even to family level. Due to the poor preservation, no formal description was attempted until many years later, after the discovery of a living population and collection of better specimens. The genus name ''Tarumania'' was chosen after the site of first collection (the Tarumã Mirim River). ''Tarumania'' is a characiform, the order which includes piranhas and tetras. Due to its distinctness from all other characiformes, the describe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serrasalmidae
The Serrasalmidae (serrasalmids) are a family of characiform fishes, recently elevated to family status. It includes more than 90 species. The name means "serrated salmon family", which refers to the serrated keel running along the belly of these fish. Fish classified as Serrasalmidae are also known by these common names: pacu, piranha, and silver dollar. These common names generally designate differing dental characteristics and feeding habits. Description Serrasalmids are medium- to large-sized characiform fishes that reach about long, generally characterized by a deep, laterally compressed body with a series of midventral abdominal spines or scutes, and a long dorsal fin (over 16 rays). Most species also possess an anteriorly directed spine just before the dorsal fin extending from a supraneural bone; exceptions include members of the genera ''Colossoma'', ''Piaractus'', and ''Mylossoma''. Most serrasalmids have about 60 chromosomes, ranging from 54 to 62.''Metynnis'' has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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