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Opsarius Canarensis
Jerdon's baril (''Opsarius canarensis'') is a fish in the genus ''Opsarius'' of the family Danionidae. It is found in southern Karnataka and northern Kerala Kerala ( , ) is a States and union territories of India, state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile .... References Opsarius Fish of India Taxa named by Thomas C. Jerdon Fish described in 1849 {{Danioninae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Caverhill Jerdon
Thomas Caverhill Jerdon (12 October 1811 – 12 June 1872) was an English physician, zoologist and botanist. He was a pioneering ornithologist who described numerous species of birds in India. Several species of plants (including the genus '' Jerdonia'') and birds including Jerdon's baza, Jerdon's leafbird, Jerdon's bushlark, Jerdon's nightjar, Jerdon's courser, Jerdon's babbler and Jerdon's bush chat are named after him. Early life Thomas was the eldest son of Archibald Jerdon of Bonjedward, near Jedburgh, and was born at Biddick House in County Durham. His early education was at Bishopton Grove near Ripon and later at Bawtry, near Doncaster. His father influenced an interest in natural history and although not a well-known naturalist, he was a careful observer and while Thomas took an interest mainly in zoology, his younger brother became an active botanist. Thomas joined Edinburgh University in 1828 as a literary student but attended classes in natural history by Professor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. 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 taxonomy (biology), 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. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opsarius
''Opsarius'' is a genus of fish. Its representatives can be found in a variety of countries in Southeast Asia, South East Asia. These countries include Cambodia, Laos, Thailand, Myanmar, India, China, and China. Certain species of ''Opsarius'' are considered Endemism, endemic to their respective habitats; such as ''Opsarius cocsa'' and ''Opsarius maculatus'' which are endemic to India. Species ''Opsarius'' includes the following species: * ''Opsarius ardens'' J. D. Marcus Knight, Knight, Ashwin Rai, A. Rai, Ronald K. P. D’Souza, D’Souza & Balaji Vijaykrishnan, Vijaykrishnan, 2015 * ''Opsarius arunachalensis'' (P. Nath, Nath, D. Dam, Dam & Anil Kumar (ichthyologist), Kumar, 2010) * ''Opsarius bakeri'' (Francis Day, Day, 1865) * ''Opsarius barna'' (Francis Buchanan-Hamilton, Hamilton, 1822) (Barna baril) * ''Opsarius barnoides'' (Decio Vinciguerra, Vinciguerra, 1890) * ''Opsarius bendelisis'' (Hamilton, 1807) * ''Opsarius bernatziki'' (Frederik Petrus Koumans, Koumans 1937) * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danionidae
The danionins are a group of small, minnow-type fish belonging to the family Danionidae. Species of this group are in the genera clades ''Danio'' and '' Devario'' (which also includes ''Chela'', ''Laubuka'', ''Microdevario'', and ''Microrasbora'' genera), based on the latest phylo-genetic research by Fang et al in 2009. They are primarily native to the fresh waters of South and Southeast Asia, with fewer species in Africa. Many species are brightly coloured and are available as aquarium fish worldwide. Fishes of the ''danio'' clade tend to have horizontal stripes, rows of spots, or vertical bars, and often have long barbels. Species within the ''devario'' clade tend to have vertical or horizontal bars, and short, rudimentary barbels, if present at all. All danionins are egg scatterers, and breed in the rainy season in the wild. They are carnivores, living on insects and small crustaceans. Fossil record Two fossil danionins, tentatively assigned to ''Rasbora'' ('''Rasbora''' ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karnataka
Karnataka ( ) is a States and union territories of India, state in the southwestern region of India. It was Unification of Karnataka, formed as Mysore State on 1 November 1956, with the passage of the States Reorganisation Act, 1956, States Reorganisation Act, and renamed ''Karnataka'' in 1973. The state is bordered by the Lakshadweep Sea to the west, Goa to the northwest, Maharashtra to the north, Telangana to the northeast, Andhra Pradesh to the east, Tamil Nadu to the southeast, and Kerala to the southwest. With 61,130,704 inhabitants at the 2011 census, Karnataka is the List of states and union territories of India by population, eighth-largest state by population, comprising 31 List of districts in India, districts. With 15,257,000 residents, the state capital Bengaluru is the largest city of Karnataka. The economy of Karnataka is among the most productive in the country with a gross state domestic product (GSDP) of and a per capita GSDP of for the financial year 2023– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerala
Kerala ( , ) is a States and union territories of India, state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile regions of Kingdom of Cochin, Cochin, Malabar District, Malabar, South Canara, and Travancore. Spread over , Kerala is the 14th List of states and union territories of India by area, smallest Indian state by area. It is bordered by Karnataka to the north and northeast, Tamil Nadu to the east and south, and the Laccadive Sea, Lakshadweep Sea to the west. With 33 million inhabitants as per the 2011 Census of India, 2011 census, Kerala is the List of states of India by population, 13th-largest Indian state by population. It is divided into 14 List of districts of Kerala, districts with the capital being Thiruvananthapuram. Malayalam is the most widely spoken language and is also the official language of the state. The Chera dynasty was the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of India
A fish (: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are cold-blooded, their body temperature varying with the surrounding water, though some large active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communicate acoustically with each other, such as during courtship displays. The study of fish is known as ichthyology. The earliest fish appeared during the Cambrian as small filter feeders; they continued to evolve through the Paleozoic, diversifying into many forms. The earliest fish w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Thomas C
In biology, a taxon (back-formation from ''Taxonomy (biology), taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular Taxonomic rank, ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based ("Linnaean taxonomy, Linnaean") nomenclature (much less so under phylogenetic nomenclature). If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were presumably set forth in prehistoric times by hunter-gatherers, as suggested by the fairly sophisticated f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
