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Lenkunya
''Lenkunya'' is a genus of land planarians from Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma .... Description Species of the genus ''Lenkunya'' are characterized by having body that is broadly convex dorsally and flat ventrally. The creeping sole occupies 70–80% of the body width. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in a staggered row. The parenchymal musculature is strong and includes a ring zone of circulo-oblique fibers. The copulatory apparatus has a well-developed penis papilla and lacks adenodactyls or other accessory glands. Etymology The name ''Lenkunya'' comes from an aboriginal word meaning beautiful. Species The genus ''Lenkunya'' includes the following species: References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenkunya Munda
''Lenkunya'' is a genus of land planarians from Australia. Description Species of the genus ''Lenkunya'' are characterized by having body that is broadly convex dorsally and flat ventrally. The creeping sole occupies 70–80% of the body width. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in a staggered row. The parenchymal musculature is strong and includes a ring zone of circulo-oblique fibers. The copulatory apparatus has a well-developed penis papilla and lacks adenodactyls or other accessory glands. Etymology The name ''Lenkunya'' comes from an aboriginal Aborigine, aborigine or aboriginal may refer to: *Aborigines (mythology), in Roman mythology * Indigenous peoples, general term for ethnic groups who are the earliest known inhabitants of an area *One of several groups of indigenous peoples, see ... word meaning beautiful. Species The genus ''Lenkunya'' includes the following species: References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph James Fletcher
Joseph James Fletcher (7 January 1850 – 15 May 1926) was an Australian biologist, winner of the 1921 Clarke Medal. Fletcher was born at Auckland, New Zealand the son of the Rev Joseph Horner Fletcher, a Methodist clergyman, and his wife Kate, ''née'' Green. The family arrived in Australia early in 1861, and, after a term of four years in Queensland (where Joseph James studied at Ipswich Grammar School), Rev. Fletcher went to Sydney to become principal of Newington College, from 1865 to 1887. J. J. Fletcher completed his schooling at Newington (1865–1867) and then went to the University of Sydney and graduating BA in 1870 and MA in 1876. In between these years he was a master at Wesley College, Melbourne, under Professor M. H. Irving. As no science degree was offered in Australia, in 1876 resigned from Wesley and went to London, initially studying at the Royal School of Mines and University College, University of London where he studied biology and took his BSc degree the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Greenlaw Hamilton
Alexander Greenlaw Hamilton (14 April 1852 – 21 October 1941) was an Australian naturalist and teacher born in Ireland. A former president of the Linnean Society of New South Wales, he was known for his studies of desert plants and pollination as well as birds and terrestrial worms. Life Hamilton was born in Bailieborough, Ireland, son of Alexander Greenlaw Hamilton and his wife Joyce, née Wynne. The family migrated to New South Wales in 1866, around Hamilton's 14th birthday.L. A. GilbertHamilton, Alexander Greenlaw (1852–1941) ''Australian Dictionary of Biography'', National Centre of Biography, Australian National University, published first in hardcopy 1983. Retrieved 1 February 2017. In the same year, he succeeded in passing the examination demanded by the Education Department of New South Wales to teach in the country schools. However, he was considered too young to be placed in full charge of a school. As a result, his mother was recognised as the responsible agen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Planarian
Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms. These flatworms are mainly predators of other invertebrates, which they hunt, attack and capture using physical force and the adhesive and digestive properties of their mucus. They lack water-retaining mechanisms and are therefore very sensitive to humidity variations of their environment. Because of their strict ecological requirements, some species have been proposed as indicators of the conservation state of their habitats. They are generally animals with low vagility (dispersal ability) and with very specific habitat requirements, so they can be also used to accurately determine the distribution of biogeographic realms. Today the fauna of these animals is being studied to select conservation priorities in the Atlantic rainforest in Brazil. At the other extreme, one species in this family, ''Platydemus manokwari'' has become an invasive species in both disturbed and wild habitats in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reproductive System Of Planarians
The reproductive system of planarians is broadly similar among different families, although the associated structures can vary in complexity. All planarians are hermaphrodites, so their reproductive system has a male and a female part. Both parts communicate with the surface of the body via a single opening called gonopore, which is located on the ventral side of the posterior half of the body. Male part of the reproductive system The male part of the reproductive system in planarians has a set of several testicles, distributed throughout the body in two or more rows. They are usually concentrated in the anterior two thirds of the body, although they can reach close to the posterior end. The testicles are connected to a pair of sperm ducts which run posteriorly towards the gonopore. In some groups, the sperm ducts met in their distal part, forming the ejaculatory duct, which then opens in a cavity called “male atrium”. In others, like land planarians, both open in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Australians
Indigenous Australians or Australian First Nations are people with familial heritage from, and membership in, the ethnic groups that lived in Australia before British colonisation. They consist of two distinct groups: the Aboriginal peoples of the Australian mainland and Tasmania, and the Torres Strait Islander peoples from the seas between Queensland and Papua New Guinea. The term Aboriginal and Torres Strait Islander peoples or the person's specific cultural group, is often preferred, though the terms First Nations of Australia, First Peoples of Australia and First Australians are also increasingly common; 812,728 people self-identified as being of Aboriginal and/or Torres Strait Islander origin in the 2021 Australian Census, representing 3.2% of the total population of Australia. Of these indigenous Australians, 91.4% identified as Aboriginal; 4.2% identified as Torres Strait Islander; while 4.4% identified with both groups. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Dendy
Arthur Dendy (20 January 1865, in Manchester – 24 March 1925, in London) was an English zoologist known for his work on marine sponges and the terrestrial invertebrates of Victoria, Australia, notably including the "living fossil" '' Peripatus''. He was in turn professor of zoology in New Zealand, in South Africa and finally at King's College London. He was a Fellow of the Royal Society. Family life Dendy's parents were John Dendy, a silk fabric maker of Manchester, and Sarah Beard, daughter of John Relly Beard. His sisters included Mary Dendy and Helen Bosanquet. He married Ada Margaret Courtauld on 5 December 1888. They had four children, three daughters—including the artist Vera Ellen Poole (1890–1965)—and one son. Career He was educated in zoology at Owens College, Manchester, gaining his M.Sc. in 1887 and his D.Sc. in 1891. He worked on part of the report of the Challenger expedition (1872–1876), describing monaxonid sponges. In 1888 he moved to the Univer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoplanidae
Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms. These flatworms are mainly predators of other invertebrates, which they hunt, attack and capture using physical force and the adhesive and digestive properties of their mucus. They lack water-retaining mechanisms and are therefore very sensitive to humidity variations of their environment. Because of their strict ecological requirements, some species have been proposed as indicators of the conservation state of their habitats. They are generally animals with low vagility (dispersal ability) and with very specific habitat requirements, so they can be also used to accurately determine the distribution of biogeographic realms. Today the fauna of these animals is being studied to select conservation priorities in the Atlantic rainforest in Brazil. At the other extreme, one species in this family, ''Platydemus manokwari'' has become an invasive species in both disturbed and wild habitats in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
