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Acanthogyrus
''Acanthogyrus'' is a genus of parasitic worms belonging to the family Quadrigyridae. The species of this genus are found in Africa. Taxonomy Golvan in 1959 divided the genus Acanthogyrus into two subgenera: Acanthogyrus and Acanthosentis based on the number of proboscis hooks; there are 18 (3 circles of 6 hooks each) in Acanthosentis and 24 (3 circles of 8 hooks each) in Acanthogyrus. Description There are between 18 and 24 hooks on the proboscis. Species There are many species in the genus ''Acanthogyrus''. ''Acanthogyrus (Acanthogyrus)'' Thapar, 1927 * ''Acanthogyrus acanthogyrus'' Thapar, 1927 Found in the intestine of a rohu (''Labeo rohita'') in Lucknow, and from the intestines of a catla (''Catla catla'') from Kolkata, both in India. * ''Acanthogyrus tripathi'' Rai, 1967 ''Acanthogyrus (Acanthosentis)'' Verma and Datta, 1929 * ''Acanthogyrus acanthuri'' (Cable and Quick, 1954) * ''Acanthogyrus adriaticus'' Amin, 2005 * ''Acanthogyrus alternatspinus'' Amin, 2005 * ''Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadrigyridae
Quadrigyridae is the only family within Gyracanthocephala, an order of parasitic worms of class Eoacanthocephala. This family contains two subfamilies, ten genera and about 92 species. Species Species in ''Quadrigyridae'' are divided into two subfamilies: Pallisentinae Van Cleave, 1928 with five genera and Quadrigyrinae Van Cleave, 1920 with three. Pallisentinae Van Cleave, 1928 Acanthogyrus Golvan in 1959 divided the genus Acanthogyrus Thapar, 1927 into two subgenera: Acanthogyrus and Acanthosentis based on the number of proboscis hooks; there are 18 (3 circles of 6 hooks each) in Acanthosentis and 24 (3 circles of 8 hooks each) in Acanthogyrus. ''Acanthogyrus (Acanthogyrus)'' Thapar, 1927 * ''Acanthogyrus acanthogyrus'' Thapar, 1927 * ''Acanthogyrus tripathi'' Rai, 1967 ''Acanthogyrus (Acanthosentis)'' Verma and Datta, 1929 * ''Acanthogyrus acanthuri'' (Cable and Quick, 1954) * ''Acanthogyrus adriaticus'' Amin, 2005 * ''Acanthogyrus alternatspinus'' Amin, 2005 * ''Acan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitic Worms
Parasitic worms, also known as helminths, are large Parasitism#Basic concepts, macroparasites; adults can generally be seen with the naked eye. Many are intestinal worms that are soil-transmitted helminth, soil-transmitted and intestinal parasite infection, infect the gastrointestinal tract. Other parasitic worms such as schistosomes reside in blood vessels. Some parasitic worms, including leeches and monogeneans, are ectoparasites thus, they are not classified as helminths, which are Parasitism#Basic concepts, endoparasites. Parasitic worms live in and feed in living host (biology), hosts. They receive nourishment and protection while disrupting their hosts' ability to absorb nutrients. This can cause weakness and disease in the host, and poses a global health and economic problem. Parasitic worms cannot reproduce entirely within their host's body; they have a life cycle that includes some stages that need to take place outside of the host. Helminths are able to survive in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proboscis
A proboscis () is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate. In invertebrates, the term usually refers to tubular mouthparts used for feeding and sucking. In vertebrates, a proboscis is an elongated nose or snout. Etymology First attested in English in 1609 from Latin , the latinisation of the Ancient Greek (), which comes from () 'forth, forward, before' + (), 'to feed, to nourish'. The plural as derived from the Greek is , but in English the plural form ''proboscises'' occurs frequently. Invertebrates The most common usage is to refer to the tubular feeding and sucking organ of certain invertebrates such as insects (e.g., moths, butterflies, and mosquitoes), worms (including Acanthocephala, proboscis worms) and gastropod molluscs. Acanthocephala The Acanthocephala or thorny-headed worms, or spiny-headed worms are characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binomial Nomenclature
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen, name or a scientific name; more informally it is also historically called a Latin name. The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus '' Homo'' and within this genus to the species '' Homo sapiens''. '' Tyrannosaurus rex'' is likely the most widely known binomial. The ''formal'' introduction of this system of naming species is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rohu
The rohu, rui, ruhi or roho labeo (''Labeo rohita'') is a species of fish of the carp family, found in rivers in South Asia. It is a large omnivore and extensively used in aquaculture. Description The rohu is a large, silver-colored fish of typical cyprinid shape, with a conspicuously arched head. Adults can reach a maximum weight of and maximum length of , but average around . Distribution and habitat The rohu occurs in rivers throughout much of northern and central and eastern India, Pakistan, Vietnam, Bangladesh, Nepal and Myanmar, and has been introduced into some of the rivers of Peninsular India and Sri Lanka. Ecology The species is an omnivore with specific food preferences at different life stages. During the early stages of its lifecycle, it eats mainly zooplankton, but as it grows, it eats more and more phytoplankton, and as a juvenile or adult is a herbivorous column feeder, eating mainly phytoplankton and submerged vegetation. It has modified, thin hair-like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucknow
Lucknow (, ) is the capital and the largest city of the Indian state of Uttar Pradesh and it is also the second largest urban agglomeration in Uttar Pradesh. Lucknow is the administrative headquarters of the eponymous district and division. Having a population of 2.8 million as per 2011 census, it is the eleventh most populous city and the twelfth-most populous urban agglomeration of India. Lucknow has always been a multicultural city that flourished as a North Indian cultural and artistic hub, and the seat of power of Nawabs in the 18th and 19th centuries. It continues to be an important centre of governance, administration, education, commerce, aerospace, finance, pharmaceuticals, technology, design, culture, tourism, music and poetry. The city stands at an elevation of approximately above sea level. Lucknow city had an area of till December 2019, when 88 villages were added to the municipal limits and the area increased to . Bounded on the east by Barabanki, on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catla
Catla (''Labeo catla''), ( bn, কাতলা, translit=kātlā) also known as the major South Asian carp, is an economically important South Asian freshwater fish in the carp family Cyprinidae. It is native to rivers and lakes in northern India, Bangladesh, Myanmar, Nepal, and Pakistan, but has also been introduced elsewhere in South Asia and is commonly farmed. In Nepal and neighbouring regions of India, up to Odisha, it is called Bhakura. Catla is a fish with large and broad head, a large protruding lower jaw, and upturned mouth. It has large, greyish scales on its dorsal side and whitish on its belly. It reaches up to in length and in weight. Catla is a surface and midwater feeder. Adults feed on zooplankton using large gill rakers, but young ones on both zooplankton and phytoplankton. Catla attains sexual maturity at an average age of two years and an average weight of 2 kg. Taxonomy The catla was formerly listed as the only species in the genus ''Catla'', but t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kolkata
Kolkata (, or , ; also known as Calcutta , List of renamed places in India#West Bengal, the official name until 2001) is the Capital city, capital of the Indian States and union territories of India, state of West Bengal, on the eastern bank of the Hooghly River west of the border with Bangladesh. It is the primary business, commercial, and financial hub of East India, Eastern India and the main port of communication for North-East India. According to the 2011 Indian census, Kolkata is the List of cities in India by population, seventh-most populous city in India, with a population of 45 lakh (4.5 million) residents within the city limits, and a population of over 1.41 crore (14.1 million) residents in the Kolkata metropolitan area, Kolkata Metropolitan Area. It is the List of metropolitan areas in India, third-most populous metropolitan area in India. In 2021, the Kolkata metropolitan area crossed 1.5 crore (15 million) registered voters. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
India
India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. 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 in the vicinity of 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 average to between 73–55 ka.", "Modern human beings—''Homo sapiens''—originated in Africa. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farsi Toothcarp
The Farsi toothcarp (''Esmaeilius persicus'') is a species of pupfish belonging to the family Aphaniidae. It is endemic to the Maharloo Lake Basin in Iran, residing in springs, lagoons, and marshes containing fresh to brackish water. Taxonomy The species name, ''persicus'', refers to Persia, the ancient name of Iran, where the fish is found. It was originally described as ''Cyprinodon persicus'', later ''Aphanius''. Then, in late 2011, a Late Miocene fossil genus ''Brachylebias'' was synonymised with ''Aphanius'', which suggested a change to the extant species as there was a ''B. persicus'' which preoccupied the name. The replacement name proposed was ''farsicus'', referring to the Fars province, but this was not universally accepted. Finally, in 2020 it was added to a new genus ''Esmaeilius'' as ''Esmaeilius persicus''. Description Farsi toothcarp reach approximately in length. Like all members of its genus, the fish show sexual dimorphism. Females have numerous alternati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maharloo Lake
Maharloe Lake ( fa, دریاچه مهارلو) is a seasonal salt lake in the highlands of the area of Shiraz, Iran. southeast of Shiraz, the lake salt is rich in potassium and other salts. Rudkhane-ye-Khoshk, a seasonal river flowing through the city of Shiraz, brings most of the flood water to the lake bed during intensive precipitation events. The lake water typically evaporates by the end of summer and exposes the white lake bed. By mid-summer and due to high evaporation rates and salt concentrations, the lake water turns pinkish red as a result of the red tide within the lake. See also * Dasht-e Arzhan Dasht-e Arzhan ( fa, دشت ارژن; also known as Dachte-Arjan, Dasht-e Arjan, Dasht-e Arzhaneh, and Dasht-i- Arjan) is a village in Dasht-e Arzhan Rural District, Arzhan District, Shiraz County, Fars Province, Iran. At the 2006 census, its po ... * Lake Parishan References Lakes of Iran Landforms of Fars Province Saline lakes of Asia {{Sarvestan-geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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