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Fletchamia Dakini
''Fletchamia'' is a genus of land planarians from Australia. Description The genus ''Fletchamia'' is characterized by having an elongate and subcylindrical body with a creeping sole that occupies from 50 to 70% of the body with. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in two to three staggered rows. The parenchymal musculature is weak and includes a loose ring zone of circulo-oblique fibers and a weak ventral plate of longitudinal fibers. The copulatory apparatus lacks a permanent penis, but some species may have a rudimentary penis papilla. The female atrium communicates posteriorly with a diverticulum. Etymology The name ''Fletchamia'' is a portmanteau of the surnames of Joseph James Fletcher (''Fletc-'') and Alexander Greenlaw Hamilton (''-hami-'') and commemorates their contributions to the knowledge of Australian land planarians. Species The genus ''Fletchamia'' includes the following species: *'' Fle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fletchamia Sugdeni
''Fletchamia'' is a genus of land planarians from Australia. Description The genus ''Fletchamia'' is characterized by having an elongate and subcylindrical body with a creeping sole that occupies from 50 to 70% of the body with. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in two to three staggered rows. The parenchymal musculature is weak and includes a loose ring zone of circulo-oblique fibers and a weak ventral plate of longitudinal fibers. The copulatory apparatus lacks a permanent penis, but some species may have a rudimentary penis papilla. The female atrium communicates posteriorly with a diverticulum. Etymology The name ''Fletchamia'' is a portmanteau of the surnames of 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 Methodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fletchamia Quinquelineata
''Fletchamia'' is a genus of land planarians from Australia. Description The genus ''Fletchamia'' is characterized by having an elongate and subcylindrical body with a creeping sole that occupies from 50 to 70% of the body with. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in two to three staggered rows. The parenchymal musculature is weak and includes a loose ring zone of circulo-oblique fibers and a weak ventral plate of longitudinal fibers. The copulatory apparatus lacks a permanent penis, but some species may have a rudimentary penis papilla. The female atrium communicates posteriorly with a diverticulum. Etymology The name ''Fletchamia'' is a portmanteau of the surnames of Joseph James Fletcher (''Fletc-'') and Alexander Greenlaw Hamilton (''-hami-'') and commemorates their contributions to the knowledge of Australian land planarians. Species The genus ''Fletchamia'' includes the following species: *'' Fle ... [...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] |
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] |
Portmanteau
A portmanteau word, or portmanteau (, ) is a blend of wordsGarner's Modern American Usage , p. 644. in which parts of multiple words are combined into a new word, as in ''smog'', coined by blending ''smoke'' and ''fog'', or ''motel'', from ''motor'' and ''hotel''. In , a portmanteau is a single morph that is analyzed as representing two (or more) underlying s. When portmanteaus shorten es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fletchamia Dakini
''Fletchamia'' is a genus of land planarians from Australia. Description The genus ''Fletchamia'' is characterized by having an elongate and subcylindrical body with a creeping sole that occupies from 50 to 70% of the body with. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in two to three staggered rows. The parenchymal musculature is weak and includes a loose ring zone of circulo-oblique fibers and a weak ventral plate of longitudinal fibers. The copulatory apparatus lacks a permanent penis, but some species may have a rudimentary penis papilla. The female atrium communicates posteriorly with a diverticulum. Etymology The name ''Fletchamia'' is a portmanteau of the surnames of Joseph James Fletcher (''Fletc-'') and Alexander Greenlaw Hamilton (''-hami-'') and commemorates their contributions to the knowledge of Australian land planarians. Species The genus ''Fletchamia'' includes the following species: *'' Fle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fletchamia Flavilineata
''Fletchamia'' is a genus of land planarians from Australia. Description The genus ''Fletchamia'' is characterized by having an elongate and subcylindrical body with a creeping sole that occupies from 50 to 70% of the body with. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in two to three staggered rows. The parenchymal musculature is weak and includes a loose ring zone of circulo-oblique fibers and a weak ventral plate of longitudinal fibers. The copulatory apparatus lacks a permanent penis, but some species may have a rudimentary penis papilla. The female atrium communicates posteriorly with a diverticulum. Etymology The name ''Fletchamia'' is a portmanteau of the surnames of Joseph James Fletcher (''Fletc-'') and Alexander Greenlaw Hamilton (''-hami-'') and commemorates their contributions to the knowledge of Australian land planarians. Species The genus ''Fletchamia'' includes the following species: *''Flet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fletchamia Fuscodorsalis
''Fletchamia'' is a genus of land planarians from Australia. Description The genus ''Fletchamia'' is characterized by having an elongate and subcylindrical body with a creeping sole that occupies from 50 to 70% of the body with. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in two to three staggered rows. The parenchymal musculature is weak and includes a loose ring zone of circulo-oblique fibers and a weak ventral plate of longitudinal fibers. The copulatory apparatus lacks a permanent penis, but some species may have a rudimentary penis papilla. The female atrium communicates posteriorly with a diverticulum. Etymology The name ''Fletchamia'' is a portmanteau of the surnames of Joseph James Fletcher (''Fletc-'') and Alexander Greenlaw Hamilton (''-hami-'') and commemorates their contributions to the knowledge of Australian land planarians. Species The genus ''Fletchamia'' includes the following species: *''Flet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fletchamia Mediolineata
''Fletchamia'' is a genus of land planarians from Australia. Description The genus ''Fletchamia'' is characterized by having an elongate and subcylindrical body with a creeping sole that occupies from 50 to 70% of the body with. The eyes form a single row around the anterior tip, are crowded antero-laterally and continue posteriorly in two to three staggered rows. The parenchymal musculature is weak and includes a loose ring zone of circulo-oblique fibers and a weak ventral plate of longitudinal fibers. The copulatory apparatus lacks a permanent penis, but some species may have a rudimentary penis papilla. The female atrium communicates posteriorly with a diverticulum. Etymology The name ''Fletchamia'' is a portmanteau of the surnames of Joseph James Fletcher (''Fletc-'') and Alexander Greenlaw Hamilton (''-hami-'') and commemorates their contributions to the knowledge of Australian land planarians. Species The genus ''Fletchamia'' includes the following species: *''Flet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
