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Gecarcinucidae
The Gecarcinucidae are a family of true freshwater crabs. They are found throughout South Asia, Southeast Asia and New Guinea, with a single genus found in Australia. Taxonomy The family Parathelphusidae is now demoted to the rank of subfamily, as the Parathelphusinae, within the Gecarcinucidae. "Family" Parathelphusidae is now considered as a junior synonym. The Gecarcinucidae are thought to have originated in the Indian subcontinent when it was an island continent in the Paleogene, despite not being of ancient Gondwanan origins themselves (unlike other lineages that are thought to have originated in Insular India). Divergence estimates indicate that the Gecarcinucidae originate from Southeast Asian ancestors that dispersed to India during the middle Eocene, before India collided with Asia. This is thought to have occurred due to India drifting close enough to Southeast Asia to allow for biotic exchange between both regions. As the Gecarcinucidae are a freshwater group that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insular India
Insular India was an isolated landmass which became the Indian subcontinent. Across the latter stages of the Cretaceous and most of the Paleocene, following the breakup of Gondwana, the Indian subcontinent remained an isolated landmass as the Indian Plate drifted across the Tethys Ocean, forming the Indian Ocean. The process of India's separation from Madagascar first began 88 million years ago, but complete isolation only occurred towards the end of the Maastrichtian, a process that has been suggested to be the creation of the Deccan Traps. Soon after, the land mass moved northward rather quickly, until contact with Asia was established 55 million years ago. Even then, both landmasses did not become fully united until around 35 million years ago, and periods of isolation occurred as recently as 24 million years ago. Thus, for a period of 53 million years India retained a degree of isolation, 11 of which it was a complete island continent. This allowed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kani (crab)
''Kani maranjandu'' is a species of tree crab first identified in 2017. ''K. maranjandu'' has, to date, only been observed in the forests of the Western Ghats in Kerala, India. , it is the only species in the genus ''Kani''. Taxonomy ''Kani maranjandu'' represents a newly discovered genus (''Kani''), named for the local Kani tribe. The species name maranjandu means tree crab in local language (Malayalam). The discoverers have placed the genus within the family Gecarcinucidae. Characteristics ''Kani maranjandu'' is distinguished from other crabs of the family Gecarcinidae by its distinctive carapace and the structure of the male abdomen, as well as its very long walking legs. The species is entirely arboreal, relying on water held in small hollows of trees for survival. Distribution ''Kani maranjandu'' type locality is the Thiruvananthapuram district of Kerala in the Western Ghats. It is endemic Endemism is the state of a species being found only in a single defined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Crab
Around 1,300 species of freshwater crabs are distributed throughout the tropics and subtropics, divided among eight family (biology), families. They show direct development and maternal care of a small number of offspring, in contrast to marine crabs, which release thousands of planktonic crustacean larvae, larvae. This limits the dispersal abilities of freshwater crabs, so they tend to be endemism, endemic to small areas. As a result, a large proportion are endangered species, threatened with extinction. Systematics More than 1,300 species description, described species of freshwater crabs are known, out of a total of 6,700 species of crabs across all environments. The total number of species of freshwater crabs, including undescribed species, is thought to be up to 65% higher, potentially up to 2,155 species, although most of the additional species are currently unknown to science. They belong to eight families, each with a limited distribution, although various crabs from other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pastilla (crab)
''Pastilla dacuna'' is a species of freshwater crab in the monotypic genus ''Pastilla'' in the family Gecarcinucidae. It is endemic to Sri Lanka. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and rivers. It is threatened by habitat loss Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease .... References Gecarcinucidae Crustaceans of Sri Lanka Freshwater crustaceans of Asia Taxonomy articles created by Polbot Crustaceans described in 2001 {{Eubrachyura-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parathelphusinae
''Arachnothelphusa rhadamanthysi''Cave crab, Borneo Parathelphusinae is a subfamily of freshwater crabs, which was formerly placed in the family Parathelphusidae; they are mainly found in South and Southeast Asia, but also found elsewhere in Asia and in Australia. The family is now considered as a junior synonym of the family Gecarcinucidae. The Parathelphusinae inhabit rivers, lakes and rice paddies. Some species, for example from the genus '' Somanniathelphusa'', are locally important as food, particularly in Thailand, Mizoram (India), etc. where they are an important ingredient in ''som tam''. Some others are very rare and close to extinction such as the Parathelphusa reticulata, Singapore's Swamp Forest Crab. Genera in this family are: *'' Adelaena'' *'' Arachnothelphusa'' *'' Austrothelphusa'' *'' Bakousa'' *'' Bassiathelphusa'' *''Ceylonthelphusa'' *'' Clinothelphusa'' *'' Coccusa'' *'' Currothelphusa'' *'' Esanthelphusa'' *'' Geelvinkia'' *'' Geithusa'' *'' Heterothel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vela (crab)
Vela or Velas may refer to: Astronomy * Vela (constellation), a constellation in the southern sky (the Sails) ** Vela (Chinese astronomy) ** Vela Pulsar ** Vela X-1, a pulsing, eclipsing high-mass X-ray binary system Places * Vela Bluff, Antarctica * Vela, Dolj, Romania * Vela (Ilidža – Sarajevo), Bosnia and Herzegovina * Velas, Maharashtra, India Ships * ''CMA CGM Vela'', a container ship in service since 2008 * USNS Vela (T-AK-89), USNS ''Vela'' (T-AK-89), US Army port repair ship * Vela-class submarine, ''Vela''-class submarine, of the Indian Navy ** INS Vela (S40), INS ''Vela'' (S40), in service 1973–2010 Technology * Project Vela, a system developed by the United States to monitor compliance with the Partial Test Ban Treaty ** Vela (satellite), a series of satellites launched by the United States to monitor nuclear testing *** Vela incident, an international incident, in which a Vela satellite is thought to possibly have observed a nuclear test * Versatile Laboratory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vanni (crab)
Vanni may refer to: People Given name * Vanni Corbellini (born 1955), Italian actor and director * Vanni Marcoux (1877–1962), French opera singer * Vanni Rodeghiero (born 1942), Italian javelin thrower * Vanni Treves (1940–2019), Italian-British business executive Surname * Andrea Vanni (1332–1414), Italian painter * Edo Vanni (1918-2007), American baseball player, coach and manager * Francesco Vanni (1563–1610), Italian painter * Giorgio Vanni (born 1963), Italian singer-songwriter * Giovanni Battista Vanni (1599–1660), Italian painter and engraver * Lippo Vanni (fl. 1344–1372), Italian painter * Luca Vanni (born 1985), Italian tennis player * Massimo Vanni (born 1946), Italian film and television actor * Raffaello Vanni (1590–1657), Italian painter * Raniero Vanni d'Archirafi (born 1931), former Italian diplomat * Renata Vanni (1909–2004), Italian-American film actress * Sam Vanni (1908–1992), Finnish painter * Simone Vanni (born 1979), Italian Ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella (crab)
Lamella (: lamellae) means a small plate or flake in Latin, and in English may refer to: Biology * Lamella (mycology), a papery rib beneath a mushroom cap * Lamella (botany) * Lamella (surface anatomy), a plate-like structure in an animal * Lamella of osteon, the concentric circles around the central Haversian canals * Lamella (cell biology): ** (i) part of a chloroplast (thin extension of thylakoid joining different grana) ** (ii) the leading edge of motile cells, containing the lamellipodia * ''Lamella'' (crab), a group of land crabs in the family Gecarcinucidae * '' Uroleptus lamella'', a species of protozoans * Middle lamella, a pectin layer which cements the cell walls of two adjoining plant cells together * Lamellae, element of molar teeth in members of Elephantidae Other uses * "Lamella", a concept in the psychoanalytic theory of Jacques Lacan * Lamella (materials), a fine, plate-like structure, usually in a group * Lamellar armour * Lamella clarifier, an inclined-plate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mary J
Mary may refer to: People * Mary (name), a female given name (includes a list of people with the name) Religion * New Testament people named Mary, overview article linking to many of those below * Mary, mother of Jesus, also called the Blessed Virgin Mary * Mary Magdalene, devoted follower of Jesus * Mary of Bethany, follower of Jesus, considered by Western medieval tradition to be the same person as Mary Magdalene * Mary, mother of James * Mary of Clopas, follower of Jesus * Mary, mother of John Mark * Mary of Egypt, patron saint of penitents * Mary of Rome, a New Testament woman * Mary the Jewess, one of the reputed founders of alchemy, referred to by Zosimus. Royalty * Mary, Countess of Blois (1200–1241), daughter of Walter of Avesnes and Margaret of Blois * Mary of Burgundy (1457–1482), daughter of Charles the Bold, Duke of Burgundy * Queen Mary of Denmark (born 1972), wife of Frederik X of Denmark * Mary I of England (1516–1558), aka "Bloody Mary", Queen of England ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baratha (crab)
Bharatha People (, ) also known as Bharatakula and Paravar, is an ethnicity in the island of Sri Lanka. Earlier considered a caste of the Sri Lankan Tamils, they were classified as separate ethnic group in the 2001 census. They are descendant of Tamil speaking Paravar of Southern India who migrated to Sri Lanka under Portuguese rule. They live mainly on the western coast of Sri Lanka and mainly found in the cities of Mannar, Negombo and Colombo. Etymology Scholars derive ''Bharatha'', also pronounced as ''Parathar'', from the Tamil root word ''para'' meaning "expanse" or "sea". The word has been documented in ancient Sangam literature, describing them as maritime people of the ''Neithal'' Sangam landscape''.'' Colonial archives refer them as ''Paruwa'', a corrupted form of "Paravar". According to other scholars is ''Bharatha'' a name the community took from the Hindu epic Mahabharata, the clan of Bhāratas, who were the ancestor of the heroes in the epic, following their or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
