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Reomkago Wellingtoni
''Reomkago'' is a genus of land planarians from Australia. Description The genus ''Reomkago'' is characterized by having an elongate body that is quadrangular in cross section, the dorsal and ventral surfaces being flat and lateral surfaces sloping inwards. The creeping sole occupies less than 50% of the body with. The eyes are small and arranged along the body margins in a single row from the anterior to the posterior end. The parenchymal musculature includes weak longitudinal muscles generally restricted to a ventral plate and very strong dorso-ventral muscles that give the planarian its quadrangular shape. The copulatory apparatus has a penis papilla and lacks adenodactyls or other accessory glands. Etymology The name ''Reomkago'' is a combination of the initials of Robert E. Ogren (REO) and Masaharu Kawakatsu (MK) with the sufix ''-ago'', from Greek ''ἄγω'', to guide. The genus honors the two scientists for their work in indexing the species of land planarians. Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reomkago Quadrangulatus
''Reomkago'' is a genus of land planarians from Australia. Description The genus ''Reomkago'' is characterized by having an elongate body that is quadrangular in cross section, the dorsal and ventral surfaces being flat and lateral surfaces sloping inwards. The creeping sole occupies less than 50% of the body with. The eyes are small and arranged along the body margins in a single row from the anterior to the posterior end. The parenchymal musculature includes weak longitudinal muscles generally restricted to a ventral plate and very strong dorso-ventral muscles that give the planarian its quadrangular shape. The copulatory apparatus has a penis papilla and lacks adenodactyls or other accessory glands. Etymology The name ''Reomkago'' is a combination of the initials of Robert E. Ogren (REO) and Masaharu Kawakatsu (MK) with the sufix ''-ago'', from Greek ''ἄγω'', to guide. The genus honors the two scientists for their work in indexing the species of land planarians. Sp ... [...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] |
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] |
Robert E
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of '' Hruod'' ( non, Hróðr) "fame, glory, honour, praise, renown" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin. It is also in use as a surname. Another commonly used form of the name is Rupert. After becoming widely used in Continental Europe it entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta. The Italian, Portuguese, and Spanish form is Roberto. Robert is also a common name in many Germanic languages, including English, German, Dutch, Norwegian, Swedish, Scots, Danish, and Icelandic. It can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masaharu Kawakatsu
is a Japanese zoologist known for his studies on the taxonomy and ecology of planarians. Life Masaharu Kawakatsu was born in 1929 in the Asahi village, Kameoka town, Kyoto Prefecture, Japan, son of Masakazu Kawakatsu, a squire of the village, and Tei Kawakatsu (born Okajima), the daughter of a country medical doctor, Ei'ichi Okajima.Kawakatsu, M. (2008Short reminiscences of a Turbellariologist - At the occasion of his 79th birthday ''Kawakatsus' Web Library on Planarians'', 29 Jan 2008: 1-15. After his mother died of an acute pneumonia when he was 7 years old, Kawakatsu became closer to his maternal grandfather, who had a passion for sciences, and learned from him the names of many plants and animals that grew around the house, including their scientific names. In April 1941, he attended the Sonobe Middle School and joined a Natural History Club. In 1946, he started his studies at the Kyoto Normal College (currently Kyoto University of Education), at the time an education ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Language
Greek ( el, label=Modern Greek, Ελληνικά, Elliniká, ; grc, Ἑλληνική, Hellēnikḗ) is an independent branch of the Indo-European family of languages, native to Greece, Cyprus, southern Italy (Calabria and Salento), southern Albania, and other regions of the Balkans, the Black Sea coast, Asia Minor, and the Eastern Mediterranean. It has the longest documented history of any Indo-European language, spanning at least 3,400 years of written records. Its writing system is the Greek alphabet, which has been used for approximately 2,800 years; previously, Greek was recorded in writing systems such as Linear B and the Cypriot syllabary. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic, and many other writing systems. The Greek language holds a very important place in the history of the Western world. Beginning with the epics of Homer, ancient Greek literature includes many works of lasting impo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reomkago Flynni
''Reomkago'' is a genus of land planarians from Australia. Description The genus ''Reomkago'' is characterized by having an elongate body that is quadrangular in cross section, the dorsal and ventral surfaces being flat and lateral surfaces sloping inwards. The creeping sole occupies less than 50% of the body with. The eyes are small and arranged along the body margins in a single row from the anterior to the posterior end. The parenchymal musculature includes weak longitudinal muscles generally restricted to a ventral plate and very strong dorso-ventral muscles that give the planarian its quadrangular shape. The copulatory apparatus has a penis papilla and lacks adenodactyls or other accessory glands. Etymology The name ''Reomkago'' is a combination of the initials of Robert E. Ogren (REO) and Masaharu Kawakatsu (MK) with the sufix ''-ago'', from Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reomkago Ventropunctatus
''Reomkago'' is a genus of land planarians from Australia. Description The genus ''Reomkago'' is characterized by having an elongate body that is quadrangular in cross section, the dorsal and ventral surfaces being flat and lateral surfaces sloping inwards. The creeping sole occupies less than 50% of the body with. The eyes are small and arranged along the body margins in a single row from the anterior to the posterior end. The parenchymal musculature includes weak longitudinal muscles generally restricted to a ventral plate and very strong dorso-ventral muscles that give the planarian its quadrangular shape. The copulatory apparatus has a penis papilla and lacks adenodactyls or other accessory glands. Etymology The name ''Reomkago'' is a combination of the initials of Robert E. Ogren (REO) and Masaharu Kawakatsu (MK) with the sufix ''-ago'', from Greek ''ἄγω'', to guide. The genus honors the two scientists for their work in indexing the species of land planarians. Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reomkago Wellingtoni
''Reomkago'' is a genus of land planarians from Australia. Description The genus ''Reomkago'' is characterized by having an elongate body that is quadrangular in cross section, the dorsal and ventral surfaces being flat and lateral surfaces sloping inwards. The creeping sole occupies less than 50% of the body with. The eyes are small and arranged along the body margins in a single row from the anterior to the posterior end. The parenchymal musculature includes weak longitudinal muscles generally restricted to a ventral plate and very strong dorso-ventral muscles that give the planarian its quadrangular shape. The copulatory apparatus has a penis papilla and lacks adenodactyls or other accessory glands. Etymology The name ''Reomkago'' is a combination of the initials of Robert E. Ogren (REO) and Masaharu Kawakatsu (MK) with the sufix ''-ago'', from Greek ''ἄγω'', to guide. The genus honors the two scientists for their work in indexing the species of land planarians. Sp ... [...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] |
