Biomphalaria Alexandrina
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Biomphalaria Alexandrina
''Biomphalaria alexandrina'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails and their allies. Distribution This species occur in Egypt Habitat ''Biomphalaria alexandrina'' lives in freshwater, for example in irrigation canals. Feeding habits In captivity, ''Biomphalaria alexandrina'' can be fed on boiled leaves of lettuce. Parasites ''Biomphalaria alexandrina'' serves as an intermediate host for ''Schistosoma mansoni'' Hybrid There is a known hybrid ''Biomphalaria glabrata × Biomphalaria alexandrina'', from Egypt. Phylogeny A cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to d ... showing phylogenic relations of species in the genus ''Biomphalaria'': References Fur ...
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Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ...
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Biomphalaria
''Biomphalaria'' is a genus of air-breathing freshwater snails, aquatic animal, aquatic pulmonate gastropod mollusks in the family (biology), family Planorbidae, the sheep, ram's horn snails and their allies.MolluscaBase (2018). Biomphalaria Preston, 1910. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=718742 on 2018-02-13 ''Biomphalaria'' is the type genus of the tribe Biomphalariini. ''Taphius'' is a synonym for ''Biomphalaria''. The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Species As of 2008 there were recognized 34 extant species in the genus ''Biomphalaria'' in total (22 American species and 12 Old World species). There were also described number of fossil ''Biomphalaria'' species. American species include: # ''Biomphalaria amazonica'' Paraense, 1966 # ''Biomphalaria andecola'' (d'Orbigny, 1835) # ''Biomphalaria cousini ...
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Biomphalaria Prona
''Biomphalaria'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.MolluscaBase (2018). Biomphalaria Preston, 1910. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=718742 on 2018-02-13 ''Biomphalaria'' is the type genus of the tribe Biomphalariini. ''Taphius'' is a synonym for ''Biomphalaria''. The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Species As of 2008 there were recognized 34 extant species in the genus ''Biomphalaria'' in total (22 American species and 12 Old World species). There were also described number of fossil ''Biomphalaria'' species. American species include: # ''Biomphalaria amazonica'' Paraense, 1966 # '' Biomphalaria andecola'' (d'Orbigny, 1835) # ''Biomphalaria cousini'' # ''Biomphalaria edisoni'' Estrada, ...
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Biomphalaria Occidentalis
''Biomphalaria'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.MolluscaBase (2018). Biomphalaria Preston, 1910. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=718742 on 2018-02-13 ''Biomphalaria'' is the type genus of the tribe Biomphalariini. ''Taphius'' is a synonym for ''Biomphalaria''. The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Species As of 2008 there were recognized 34 extant species in the genus ''Biomphalaria'' in total (22 American species and 12 Old World species). There were also described number of fossil ''Biomphalaria'' species. American species include: # '' Biomphalaria amazonica'' Paraense, 1966 # '' Biomphalaria andecola'' (d'Orbigny, 1835) # '' Biomphalaria cousini'' # '' Biomphalaria edisoni'' Estra ...
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Biomphalaria Tenagophila
''Biomphalaria tenagophila'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. This species is medically important pest, because of transferring the disease intestinal schistosomiasis. (Intestinal schistosomiasis is the most widespread of all types of schistosomiasis). The parasite ''Schistosoma mansoni'', which ''Biomphalaria'' snails carry, infects about 83.31 million people worldwide. The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Taxonomy ''Biomphalaria tenagophila'' was originally discovered and described under the name ''Planorbis tenagophilus'' by the French naturalist Alcide d'Orbigny in 1835. d’Orbigny A. (1835) Synopsis terrestrium et fluviatilium molluscoum, in suo per Americam meridionalem itinere collectorum. ''Magasin de zoologie'' 5(62): 1–44Page 26 Orbigny (1835) referred its distrib ...
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Biomphalaria Amazonica
''Biomphalaria'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.MolluscaBase (2018). Biomphalaria Preston, 1910. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=718742 on 2018-02-13 ''Biomphalaria'' is the type genus of the tribe Biomphalariini. ''Taphius'' is a synonym for ''Biomphalaria''. The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Species As of 2008 there were recognized 34 extant species in the genus ''Biomphalaria'' in total (22 American species and 12 Old World species). There were also described number of fossil ''Biomphalaria'' species. American species include: # '' Biomphalaria amazonica'' Paraense, 1966 # '' Biomphalaria andecola'' (d'Orbigny, 1835) # ''Biomphalaria cousini'' # ''Biomphalaria edisoni'' Estrada ...
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Biomphalaria Intermedia
''Biomphalaria'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.MolluscaBase (2018). Biomphalaria Preston, 1910. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=718742 on 2018-02-13 ''Biomphalaria'' is the type genus of the tribe Biomphalariini. ''Taphius'' is a synonym for ''Biomphalaria''. The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Species As of 2008 there were recognized 34 extant species in the genus ''Biomphalaria'' in total (22 American species and 12 Old World species). There were also described number of fossil ''Biomphalaria'' species. American species include: # '' Biomphalaria amazonica'' Paraense, 1966 # '' Biomphalaria andecola'' (d'Orbigny, 1835) # '' Biomphalaria cousini'' # '' Biomphalaria edisoni'' Estra ...
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Biomphalaria Straminea
''Biomphalaria straminea'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. This snail is a medically important pest, because an intermediate host for the parasite '' Schistosoma mansoni'' and a vector of schistosomiasis. The history of these discoveries was summarized by Paraense (2001). The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Distribution ''Biomphalaria glabrata'' is a Neotropical species. It occurs in: * Caribbean: Saint Lucia – reported since 1993 * northeast of Brazil This species has recently expanded its native range. As an introduced species, it occurs in: * Hong Kong and Southern China - firstly collected in 1973 in the Lam Tsuen valley in Hong Kong, in has now been identified at a number of locations in Hong Kong and Guangdong Province. Phylogeny To allow comparisons with ...
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Biomphalaria Kuhniana
''Biomphalaria kuhniana'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. Shell description All species within the family Planorbidae have sinistral shells. Distribution Dominica.PDF
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Phylogeny

A
cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to ...
showing the phylogenic relationships of species within the genus ''Biomphalaria'':< ...
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Biomphalaria Smithi
''Biomphalaria smithi'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. ''Biomphalaria smithi'' is the type species of the genus ''Biomphalaria''. The type material is stored in the Natural History Museum. Distribution The type locality is the Lake Albert, Uganda. Shell description The width of the shell is from 7.5 mm to 9.5. The height of the shell is 4 mm. The height of the aperture is 5 mm. The width of the aperture is 4.5 mm. Phylogeny A cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to d ... showing phylogenic relations of species in the genus ''Biomphalaria'': References Further reading * Baker F. C. (1945''The molluscan family Planorbidae'' U ...
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Biomphalaria Choanomphala
''Biomphalaria'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.MolluscaBase (2018). Biomphalaria Preston, 1910. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=718742 on 2018-02-13 ''Biomphalaria'' is the type genus of the tribe Biomphalariini. ''Taphius'' is a synonym for ''Biomphalaria''. The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral. Species As of 2008 there were recognized 34 extant species in the genus ''Biomphalaria'' in total (22 American species and 12 Old World species). There were also described number of fossil ''Biomphalaria'' species. American species include: # ''Biomphalaria amazonica'' Paraense, 1966 # '' Biomphalaria andecola'' (d'Orbigny, 1835) # ''Biomphalaria cousini'' # ''Biomphalaria edisoni'' Estrada, ...
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Biomphalaria Sudanica
''Biomphalaria sudanica'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod belonging to the family Planorbidae, the ram's horn snails. ''Biomphalaria sudanica'' has a discoidal, brown shell with an approximate shell diameter of 9–11 mm. ''Biomphalaria sudanica'' is a medically important pest, due to it being an intermediate host of the intravascular trematode genus, ''Schistosoma''. Distribution This is an African ''Biomphalaria'' species, and occurs mainly in East Africa: * The River Nile, Shambat, Sudan. * Lake Albert, Uganda. (Lake Albert is between Uganda and Democratic Republic of the Congo) * Lake Kyoga, Uganda. * Lake Ziway, Ethiopia Phylogeny A cladogram showing the phylogenic relations of species in the genus ''Biomphalaria'': Ecology ''Biomphalaria sudanica'' is found in shallow water near the shoreline in Lake Albert. Despite being a pulmonate, ''Biomphalaria sudanica'' is well adapted to use the oxygen from water (bu ...
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