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Neritidae
Neritidae, common name the nerites, is a Taxonomy (biology), taxonomic Family (biology), family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive Operculum (gastropod), operculum. MolluscaBase eds. (2021). MolluscaBase. Neritininae Poey, 1852. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=411639 on 2021-09-25 The family Neritidae includes marine genera such as ''Nerita'', marine and freshwater genera such as ''Neritina'', and freshwater and brackish water genera such as ''Theodoxus''. The common name "nerite" as well as the family name Neritidae and the genus name ''Nerita'', are derived from the name of Nerites (mythology), Nerites, who was a sea god in Greek mythology. Distribution Neritidae live primarily in the southern hemisphere, but there are some exceptions, such as a genus ''Theodoxus'' which can be found in Europe and Northern Africa Bunje P. M. & Lindberg D. R. ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodoxus Fluviatilis
''Theodoxus fluviatilis'', common name the river nerite, is a species of small freshwater and brackish water snail with a gill and an Operculum (gastropod), operculum, an Aquatic animal, aquatic gastropod mollusk in the family Neritidae, the nerites.Neubauer, Thomas A. (2014). ''Theodoxus'' (''Theodoxus'') ''fluviatilis'' (Linnaeus, 1758). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=821986 on 2014-11-18 This widely distributed neritid snail species occurs from Europe to Central Asia. It has a thick shell with a calcified operculum. The coloration pattern on the shell is Phenotypic plasticity, very variable. ''Theodoxus fluviatilis'' lives in freshwater and in brackish water, in rivers and lakes on stones. It feeds mainly by grazing on biofilms and diatoms. Some of the populations of this species are spreading, and these can reach densities up to thousands of snails per square meter. Females lay egg capsules, each ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodoxus
''Theodoxus'' is a genus of nerites, small water snails with an operculum, some of which live in freshwater, and some in both freshwater and brackish water, aquatic gastropod mollusks in the family Neritidae, the nerites.Bouchet, P. (2014). Theodoxus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153531 on 2014-11-17. Distribution The distribution of the genus ''Theodoxus'' includes Europe and northern Africa and also extends east to southern Iran. No other species within Neritidae have sympatrical distribution with ''Theodoxus''. The distribution of the genus ''Theodoxus'' is an exception within Neritidae, because Neritidae live primarily in the southern hemisphere. Species within ''Theodoxus'' are the only Neritidae snails, that live in temperate climate. Bunje & Lindberg (2007) presented the first phylogenetic hypothesis of the clade ''Theodoxus''.Bunje P. M. & Lindberg D. R. (2007). "Lineage dive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Snail
Freshwater snails are gastropod mollusks that live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers. The great majority of freshwater gastropods have a gastropod shell, shell, with very few exceptions. Some groups of snails that live in freshwater Respiratory system, respire using gills, whereas Pulmonata, other groups need to reach the surface to breathe air. In addition, some are amphibious and have both gills and a lung (e.g. ''Ampullariidae''). Most feed on algae, but many are detritivores and some are Filter feeding, filter feeders. Freshwater snails are indirectly among the deadliest animals to humans, as they carry parasitic worms that cause schistosomiasis, a disease estimated to kill between 10,000 and 200,000 people annually. There are thousands of known species, and at least 33–38 independent Lineage (evolut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerita
''Nerita'' is a genus of medium-sized to small sea snails with a gill and an operculum, marine gastropod molluscs in the subfamily Neritinae of the family Neritidae, the nerites.MolluscaBase eds. (2021). MolluscaBase. Nerita Linnaeus, 1758. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=138254 on 2021-09-20 This is the type genus of the family Neritidae. Distribution and habitat Species of ''Nerita'' can be found worldwide in tropical waters in the middle and upper intertidal zones. They are gregarious herbivores. Description The thick shell is broadly ovate or globular and low-spired. It has a smooth surface. The shells are spirally ribbed or show some axial sculpturing. The ventral side has a large columellar callus or parietal wall. The callus shows small pustules. The aperture and the edge of the columella are usually dentate with fine or robust teeth. The calcareus operculum is thick and can be smooth or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neritodryas Cornea 001
''Neritodryas'' is a genus of freshwater snails, (some of which are amphibious and terrestrial living on trees and bushes); they are gastropod molluscs in the family Neritidae Neritidae, common name the nerites, is a Taxonomy (biology), taxonomic Family (biology), family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive Operculum (gastropod), operculum. MolluscaBase eds. (202 ..., the nerites.MolluscaBase eds. (2021). MolluscaBase. Neritodryas von Martens, 1869. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=818410 on 2021-09-28 The length of the shell is up to 40 mm. Species Species within the genus ''Neritodryas'' include: * '' Neritodryas chimmoi'' (Reeve, 1856) * '' Neritodryas cornea'' (Linnaeus, 1758) - type species of the genus ''Neritodryas'' * '' Neritodryas dubia'' (Gmelin, 1791) * † '' Neritodryas dutemplei'' (Deshayes, 1864) - synonym: ''Nerita dutemple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodoxus Danubialis
''Theodoxus danubialis'' is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites. The species is considered as endangered in Germany, Austria and in the Czech Republic. Etymology The Latin name ''Theodoxus danubialis'' means "God's gift to the Danube" or "The praise of God in the Danube". Subspecies *''Theodoxus danubialis cantianus'' (Kennard & Woodward, 1924) † *''Theodoxus danubialis danubialis'' (C. Pfeiffer, 1828) *''Theodoxus danubialis stragulatus'' (C. Pfeiffer, 1828) Description Shells of ''Theodoxus danubialis'' can reach a diameter of . These shells are quite flattened, with 3-3.5 whorls. The surface has a characteristic dark brown zigzag drawing on a light background. The width of the zigzag lines is variable. The mouth is round to slightly elliptical. The operculum is pale yellow. The edge is brown and slightly thickened. The body of the snail is bright with a wide base. The antennae ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
