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Opsarius Malabaricus
''Opsarius malabaricus'' is a species of freshwater ray-finned fish belonging to the family Danionidae. It is found in the Payaswini and Vallapattanam rivers in India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since .... References malabaricus Fish described in 1849 Taxa named by Thomas C. Jerdon {{Danioninae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas C
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Idaho * Thomas, Illinois * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts and entertainment *Thomas (Burton novel), ''Thomas'' (Burton novel) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinopterygii
Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class (biology), class of Osteichthyes, bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fish fin, fins made of webbings of skin supported by radially extended thin bony spine (zoology), spines called ''lepidotrichia'', as opposed to the bulkier, fleshy lobed fins of the sister taxon, sister clade Sarcopterygii (lobe-finned fish). Resembling folding fans, the actinopterygian fins can easily change shape and wetted area, providing superior thrust-to-weight ratios per movement compared to sarcopterygian and chondrichthyian fins. The fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the articulation (anatomy), articulation between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). The vast majority of actinopterygians are teleosts. By species count, they domi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) 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". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...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] |
Payaswini
The Chandragiri River, also known as the Payaswini River in Karnataka and as the Perumpuzha River in Kerala, is the longest river in Kasaragod district, Kerala, India. The river is a historical treasure of Chemnad. It was named after the Mauryan emperor Chandragupta Maurya. The river originates in the Talakaveri Wildlife Sanctuary in the Western Ghats of Kodagu district, Karnataka. It flows through towns including Sullia, Jalsoor, Parappa, Adoor, Chengala, Kasaragod and Chemnad and then later flows into the Arabian Sea. In Sullia taluk, it is the major water source for domestic and agricultural purposes. Chemnad is considered as the ''Land Of Chandragiri''. History The Chandragiri or Perumpuzha River is considered the traditional boundary between the Tulu Nadu and Malayalam regions of Kerala. In 16th-century Portuguese geographies, the Chandragiri River is called the "Rio Cangerecora", and identified as the boundary between the "province of Canará" (Kannada-speaking c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valapattanam River
The Valapattanam River is a 110 km long river which flows through the Kannur district in North Kerala. It is the longest river in the Kannur district. Course The Valapattanam River originates from the Brahmagiri hills of Western Ghats in Karnataka. Initially the river flows towards the eastern direction through some villages in the hilly Malenadu region of Karnataka, like Matyani, Birunani, Poradu, Badagarakeri and Kikkod. Later it takes a sharp bend toward the west and flows through a narrow deep valley descending towards the hilly regions of Kannur district. It then flows through the hilly region of Kannur, passing through Manikkadavu, Vattiyamthode, Vayathur, Nuchiyad, Chamathachal, Uchatthu kayam (where the Payyavoor river joins), Madambam The river then enters the Malabar plains where it flows through the towns of Sreekandapuram, Chengalayi, Mungam, Koyyam (where the Bavali river joins), Kandakkai, Mullakkodi Nanichery, Parassinikadavu, Kolachery, Kambil, Narath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since 2023; and, since its independence in 1947, the world's most populous democracy. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is near Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand, Myanmar, and Indonesia. Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago., "Y-Chromosome and Mt-DNA data support the colonization of South Asia by modern humans originating in Africa. ... Coalescence dates for most non-European populations averag ... [...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] |
Fish Described In 1849
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 wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
