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Barreirana
''Barreirana'' is a genus of land planarians from Brazil, formerly considered a subgenus of ''Geoplana''. Description The genus ''Barreirana'' includes land planarians with a small and slender body, usually around 2 cm long or less. The eyes occur along the whole body, covering almost the entire dorsum. The copulatory apparatus has a permanent conical penis occupying the entire male cavity. The only two species currently considered in the genus have a dorsal color pattern including transverse bands. Etymology The name ''Barreirana'' comes from the specific epithet of the type species, ''Barreirana barreirana'' (formerly ''Geoplana barreirana'') and refers to the type locality for the species, the district of Barreira in the city of Teresópolis, state of Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply Rio, is the capital of the state of the same name, Brazil's third-most populous state, and the second-most populous city in Brazil, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barreirana Zebroides
''Barreirana'' is a genus of 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 proper ...s from Brazil, formerly considered a subgenus of '' Geoplana''. Description The genus ''Barreirana'' includes land planarians with a small and slender body, usually around 2 cm long or less. The eyes occur along the whole body, covering almost the entire dorsum. The copulatory apparatus has a permanent conical penis occupying the entire male cavity. The only two species currently considered in the genus have a dorsal color pattern including transverse bands. Etymology The name ''Barreirana'' comes from the specific epithet of the type species, ''Barreirana barreirana'' (formerly ''Geoplana barreirana'') and refers to the type locality for the species, the district of Barreira ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barreirana Barreirana
''Barreirana'' is a genus of land planarians from Brazil, formerly considered a subgenus of '' Geoplana''. Description The genus ''Barreirana'' includes land planarians with a small and slender body, usually around 2 cm long or less. The eyes occur along the whole body, covering almost the entire dorsum. The copulatory apparatus has a permanent conical penis occupying the entire male cavity. The only two species currently considered in the genus have a dorsal color pattern including transverse bands. Etymology The name ''Barreirana'' comes from the specific epithet of the type species, ''Barreirana barreirana'' (formerly ''Geoplana barreirana'') and refers to the type locality for the species, the district of Barreira in the city of Teresópolis, state of Rio de Janeiro, Brazil. Species There are two described species in the genus ''Barreirana'': *'' Barreirana barreirana'' (Riester, 1938) *''Barreirana zebroides ''Barreirana'' is a genus of land planarian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoplana
''Geoplana'' is a genus of land planarians found in South America. Taxonomic history The genus ''Geoplana'' was erected in 1857 by William Stimpson and included most land planarians with several eyes distributed along the body.Stimpson, W. (1857). ''Prodromus descriptionis animalium evertebratorum quæ in Expeditione ad Oceanum, Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit er descripsit. Pars I. Turbellaria Dendrocœla.'' Proceedings of the Academy of Natural Sciences of Philadelphia. 9:19-31. Species with only two eyes were placed in the genus '' Rhynchodemus'', while species with a crescent-shaped head were placed in ''Bipalium''. In the same year, apparently unaware of Stimpson's paper, the naturalist Max Schultze, based on published information and new species collected in Brazil by the naturalist Fritz Müller, also erected a genus named ''Geoplana'', but included all land planarians in it.Schultze, M. and Müller, F. (1857). ''Bei ... [...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 c ... [...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 educatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below 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 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 of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...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] |
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 states and the Federal District. It is the largest country to have Portuguese as an official language and the only one in the Americas; one of the most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world; and the most populous Roman Catholic-majority country. Bounded by the Atlantic Ocean on the east, Brazil has a coastline of . It borders all other countries and territories in South America except Ecuador and Chile and covers roughly half of the continent's land area. Its Amazon basin includes a vast tropical forest, ho ... [...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 i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teresópolis
Teresópolis (, , , ) is a Brazilian municipality located in the state of Rio de Janeiro, in a mountainous region known as ''Região Serrana''. The Serra dos Órgãos National Park lies partly within the city limits. The city is known as the home of the Brazil national football team, since it hosts CBF's training ground at Granja Comary. History Before the arrival of the Portuguese to the area where Teresópolis lies today, in the 16th century, it was inhabited by indigenous Brazilians. In the following centuries, Portuguese started buying land there. The region was also occupied by a quilombo, formed by runaway slaves coming from sugar cane plantations near Rio de Janeiro. In 1821, English citizen George March (born and raised in Portugal) established a farm there, which later became the most important settlement along the way between the court, in Rio de Janeiro, and the territory of Gerais (nowadays, the state of Minas Gerais), which led to the great improvement of agric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio De Janeiro (state)
Rio de Janeiro () is one of the 27 federative units of Brazil. It has the second largest economy of Brazil, with the largest being that of the state of São Paulo. The state, which has 8.2% of the Brazilian population, is responsible for 9.2% of the Brazilian GDP. The state of Rio de Janeiro is located within the Brazilian geopolitical region classified as the Southeast (assigned by IBGE). Rio de Janeiro shares borders with all the other states in the same Southeast macroregion: Minas Gerais ( N and NW), Espírito Santo ( NE) and São Paulo ( SW). It is bounded on the east and south by the South Atlantic Ocean. Rio de Janeiro has an area of . Its capital is the city of Rio de Janeiro, which was the capital of the Portuguese Colony of Brazil from 1763 to 1815, of the following United Kingdom of Portugal, Brazil and the Algarves from 1815 to 1822, and of later independent Brazil as a kingdom and republic from 1822 to 1960. The state's 22 largest cities are Rio de Janeiro, ... [...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] |
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