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Paludina
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Bazavlukensis
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an Operculum (gastropod), operculum, Aquatic animal, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Holocene, Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † ''Viviparus alexandrieni'' Cobălcescu, 1883 * † ''Viviparus altecarinatus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Aitaiensis
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † '' Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Balatonicus
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Aulacophorus
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Atriticus
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Ater
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Argesiensis
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Aquitanicus
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Ampullaceus
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viviparus Ambiguus
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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