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Pristella
''Pristella'' is a genus of fish in the family Characidae. It was formerly a monotypic taxon only containing ''Pristella maxillaris'', but in 2019 a second species, '' Pristella ariporo,'' was described. Taxonomy Until 2019, ''Pristella'' was a monotypic genus, but ''P. ariporo'' was described in 2019. Additionally, '' Hyphessobrycon axelrodi'' may belong in ''Pristella'' due to its conical teeth, but further genetic studies are needed to confirm this. Species There are currently 3 described species: * '' Pristella ariporo'' * '' Pristella crinogi'' F.C.T. Lima, Caires, R.A., Conde-Saldaña, C.C., Mirande, J.M. & Carvalho, F.R. (2021): ''A new miniature Pristella (Actinopterygii: Characiformes: Characidae) with reversed sexual dimorphism from the rio Tocantins and rio São Francisco basins, Brazil.'' Canadian Journal of Zoology, 99: 339-348. doi: 10.1139/cjz-2020-0241 * ''Pristella maxillaris ''Pristella maxillaris'' is a species of characin in the genus '' Pristella' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pristella Maxillaris
''Pristella maxillaris'' is a species of characin in the genus ''Pristella'', and is commonly known as the X-ray fish or X-ray tetra because of its translucent body. Description It is a widely distributed and adaptable fish, found in the Amazon and Orinoco basins, as well as coastal rivers in the Guianas in both acidic and alkaline waters. Unlike most other characins, it is tolerant of (and sometimes found in) slightly brackish water. It is small (up to around in length) and lives in large groups, and males can be distinguished from females by being smaller and thinner than the females. Like most other tetras, it feeds primarily on small insects and planktonic animals. Nomenclature Older aquarium books often refer to this species by the junior synonym ''Pristella riddlei''. Aquarists tend to refer to this fish as the golden pristella tetra, though some call it the X-ray tetra, instead. Other common names include goldfinch tetra, a reference to the similarly coloured goldfin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pristella Ariporo
''Pristella ariporo'' is a freshwater fish in the family Characidae of the order Characiformes. It is a tropical fish. It resides in the basin of the Orinoco in Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car .... References Fish described in 2019 Freshwater fish of South America Pristellini {{Characidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pristella Crinogi
''Pristella crinogi'' is a freshwater fish in the family Characidae of the order Characiformes. It is a tropical fish. It resides in the basins of the Tocantins River and São Francisco River The São Francisco River (, ) is a large river in Brazil. With a length of , it is the longest river that runs entirely in Brazilian territory, and the fourth longest in South America and overall in Brazil (after the Amazon, the Paraná and t .... References Fish described in 2021 Freshwater fish of South America Pristellini {{Characidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Characidae
Characidae, the characids or characins is a family of freshwater subtropical and tropical fish, belonging to the order Characiformes. The name "characins" is the historical one, but scientists today tend to prefer "characids" to reflect their status as a by and large monophyletic group at family rank. To arrive there, this family has undergone much systematic and taxonomic change. Among those fishes that remain in the Characidae for the time being are the tetras, comprising the very similar genera '' Hemigrammus'' and '' Hyphessobrycon'', as well as a few related forms such as the cave and neon tetras. Fish of this family are important as food and also include popular aquarium fish species. These fish vary in length, though many are less than . One of the smallest species, ''Hyphessobrycon roseus'', grows to a maximum length of 1.9 cm. These fish inhabit a wide range and a variety of habitats. They originate in the Americas, ranging from southwestern Texas and Mexico th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl H
Carl may refer to: *Carl, Georgia, city in USA *Carl, West Virginia, an unincorporated community * Carl (name), includes info about the name, variations of the name, and a list of people with the name *Carl², a TV series * "Carl", an episode of television series ''Aqua Teen Hunger Force'' * An informal nickname for a student or alum of Carleton College CARL may refer to: *Canadian Association of Research Libraries *Colorado Alliance of Research Libraries See also *Carle (other) *Charles *Carle, a surname *Karl (other) *Karle (other) Karle may refer to: Places * Karle (Svitavy District), a municipality and village in the Czech Republic * Karli, India, a town in Maharashtra, India ** Karla Caves, a complex of Buddhist cave shrines * Karle, Belgaum, a settlement in Belgaum ... {{disambig ja:カール zh:卡尔 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
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 c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
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 arthrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (taxonomy)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opinion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Taxon
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda.' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyphessobrycon Axelrodi
''Hyphessobrycon axelrodi'' is a species of tetra in the family Characidae. Named in honor of pet-book publisher Herbert R. Axelrod (1927-2017), who collected the type specimen. Description ''Hyphessobrycon axelrodi'' is a small, iridescent, silver fish with white-tipped dorsal, anal and pelvic fins. It also has a red tail. Females are duller, with faint gray-tipped fins and a dull pink tail. Distribution ''Hyphessobrycon axelrodi'' is native to the island nation of Trinidad. It inhabits low elevations in fresh and brackish waters near swamp A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...y areas. References *http://www.theaquariumwiki.com/wiki/Hyphessobrycon_axelrodi * *http://www.aquariumglaser.de/en/fish-archives/hyphessobrycon_axelrodi_en/ {{Taxonbar, from=Q3545096 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Brennus Ulrey
Albert Brennus Ulrey was a marine biologist, born in North Manchester, Indiana, December 31, 1860 and died 21 December 1932 in Los Angeles, California. Personal life Ulrey married Florence Katherine Speicher (1883-1966) on 15 November 1900. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
