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Planorbella Pilsbryi
''Planorbella'' is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells. Ecology Species in this genus are sometimes hosts for parasites, constituting a link in the pathway of infection for higher animals. For example, some species of ''Planorbella'' host rediae and cercariae stages of the parasite '' Ribeiroia'', prior to ultimate infection of the Rough-skinned Newt. ''Planorbella'' are often algae grazers, and in some locations such as oligotrophic sloughs, they may be a dominant element of total ecosystem biomass and hence system integrity. Species Species within the genus ''Planorbella'' include: * '' Planorbella ammon'' (Gould, 1855) * '' Planorbella binneyi'' (Tryon, 1867) * ''Planorbella campanulata'' (Say, 1821) * '' Planorbella columbiensis'' (F. C. Baker, 1945) * '' Planorbella corpulenta'' (Say, 1824) * ''Planorbella du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Trivolvis
''Planorbella trivolvis'' is a species of freshwater air-breathing snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral or left-coiling shells. Description All species within family Planorbidae have sinistral shells. The width of the shell of this species is up to 18 mm. Distribution This pond snail is native to North America, from the Arctic areas of Canada all the way south to Florida. It has also been introduced in other parts of the world. * PeruParaense W. L. (September 2003) "Planorbidae, Lymnaeidae and Physidae of Peru (Mollusca: Basommatophora)". ''Memórias do Instituto Oswaldo Cruz'' 98(6): 767-771PDF/ref> * DominicaReeves W. K., Dillon Jr. R. T. & Dasch G. A. (2008). "Freshwater snails (Mollusca: Gastropoda) from the Commonwealth of Dominica with a discussion of their roles in the transmission of parasites". ''American Malacological Bulletin'' 24: 59-63. PDF. Habitat This specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotroph
An oligotroph is an organism that can live in an environment that offers very low levels of nutrients. They may be contrasted with copiotrophs, which prefer nutritionally rich environments. Oligotrophs are characterized by slow growth, low rates of metabolism, and generally low population density. Oligotrophic environments are those that offer little to sustain life. These environments include deep oceanic sediments, caves, glacial and polar ice, deep subsurface soil, aquifers, ocean waters, and leached soils. Examples of oligotrophic organisms are the cave-dwelling olm; the bacterium " ''Candidatus'' Pelagibacter communis", which is the most abundant organism in the oceans with an estimated 2 × 1028 individuals in total; and the lichens with their extremely low metabolic rate. Etymologically, the word "oligotroph" is a combination of the Greek adjective ''oligos'' (ὀλίγος) meaning "few" and the adjective ''trophikos'' (τροφικός)) meaning "feeding". Plant adaptatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Scalaris
''Planorbella'' is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells. Ecology Species in this genus are sometimes hosts for parasites, constituting a link in the pathway of infection for higher animals. For example, some species of ''Planorbella'' host rediae and cercariae stages of the parasite '' Ribeiroia'', prior to ultimate infection of the Rough-skinned Newt. ''Planorbella'' are often algae grazers, and in some locations such as oligotrophic sloughs, they may be a dominant element of total ecosystem biomass and hence system integrity. Species Species within the genus ''Planorbella'' include: * '' Planorbella ammon'' (Gould, 1855) * '' Planorbella binneyi'' (Tryon, 1867) * ''Planorbella campanulata'' (Say, 1821) * '' Planorbella columbiensis'' (F. C. Baker, 1945) * '' Planorbella corpulenta'' (Say, 1824) * ''Planorbella du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Pilsbryi
''Planorbella'' is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells. Ecology Species in this genus are sometimes hosts for parasites, constituting a link in the pathway of infection for higher animals. For example, some species of ''Planorbella'' host rediae and cercariae stages of the parasite '' Ribeiroia'', prior to ultimate infection of the Rough-skinned Newt. ''Planorbella'' are often algae grazers, and in some locations such as oligotrophic sloughs, they may be a dominant element of total ecosystem biomass and hence system integrity. Species Species within the genus ''Planorbella'' include: * '' Planorbella ammon'' (Gould, 1855) * '' Planorbella binneyi'' (Tryon, 1867) * ''Planorbella campanulata'' (Say, 1821) * '' Planorbella columbiensis'' (F. C. Baker, 1945) * '' Planorbella corpulenta'' (Say, 1824) * ''Planorbella du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Oregonensis
''Planorbella oregonensis'' is a species of gastropod belonging to the family Planorbidae. The species is found in Western North America. Per IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ..., the species has the status "vulnerable". References {{Taxonbar, from=Q3694954 Planorbidae Gastropods described in 1865 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Occidentalis
''Planorbella'' is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells. Ecology Species in this genus are sometimes hosts for parasites, constituting a link in the pathway of infection for higher animals. For example, some species of ''Planorbella'' host rediae and cercariae stages of the parasite '' Ribeiroia'', prior to ultimate infection of the Rough-skinned Newt. ''Planorbella'' are often algae grazers, and in some locations such as oligotrophic sloughs, they may be a dominant element of total ecosystem biomass and hence system integrity. Species Species within the genus ''Planorbella'' include: * '' Planorbella ammon'' (Gould, 1855) * '' Planorbella binneyi'' (Tryon, 1867) * ''Planorbella campanulata'' (Say, 1821) * '' Planorbella columbiensis'' (F. C. Baker, 1945) * '' Planorbella corpulenta'' (Say, 1824) * ''Planorbella du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Multivolvis
''Planorbella multivolvis'', the acorn ramshorn, was a species of small freshwater air-breathing snail, a pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. This species was endemic to the state of Michigan in the United States. It was last documented in 1907 and is now considered to be extinct. The species was described to science in 1847 by William Case, who used the specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ... "multivolvis" because the shells of this snail have a greater number of whorls than other members of the genus. The known range of the species was Howe Lake, in Marquette County, Michigan. It is thought that the species lived in the deeper waters of the lake, and came to shallow water only for the purposes of spawning. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Magnifica
''Planorbella magnifica'', the magnificent ramshorn, is a species of small, freshwater, air-breathing snail, a pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails. This species is endemic to the United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie .... References Molluscs of the United States magnifica Gastropods described in 1903 Taxonomy articles created by Polbot Endemic fauna of North Carolina {{Planorbidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Duryi
''Planorbella duryi'', common name the Seminole rams-horn, is a species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. The species is endemic to Florida and is found frequently in home aquariums. Description Apical and apertural view of a shell of ''Planorbella duryi''. Scale bar is 10 mm. In the wild they are brown. In captivity they have been bred to come in many colours. These colours are: * Brown * Brown leopard * Blue * Blue leopard * Red/orange * Pink * Green * Purple Distribution This species of snail is endemic to the freshwater ecosystems of the US state of Florida. Fossils of the species have been found dating back to the Piacenzian, in the Tamiami formation. It has been introduced to Hawaii and lives in the wild there. It is an introduced species in various European islands and countries including: * Great Britain as a "hothouse alien" * Ireland Ireland ( ; ga, Éire ; Ulster Sco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Corpulenta
''Planorbella'' is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells. Ecology Species in this genus are sometimes hosts for parasites, constituting a link in the pathway of infection for higher animals. For example, some species of ''Planorbella'' host rediae and cercariae stages of the parasite '' Ribeiroia'', prior to ultimate infection of the Rough-skinned Newt. ''Planorbella'' are often algae grazers, and in some locations such as oligotrophic sloughs, they may be a dominant element of total ecosystem biomass and hence system integrity. Species Species within the genus ''Planorbella'' include: * '' Planorbella ammon'' (Gould, 1855) * '' Planorbella binneyi'' (Tryon, 1867) * ''Planorbella campanulata'' (Say, 1821) * '' Planorbella columbiensis'' (F. C. Baker, 1945) * '' Planorbella corpulenta'' (Say, 1824) * ''Planorbella du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Columbiensis
''Planorbella'' is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells. Ecology Species in this genus are sometimes hosts for parasites, constituting a link in the pathway of infection for higher animals. For example, some species of ''Planorbella'' host rediae and cercariae stages of the parasite '' Ribeiroia'', prior to ultimate infection of the Rough-skinned Newt. ''Planorbella'' are often algae grazers, and in some locations such as oligotrophic sloughs, they may be a dominant element of total ecosystem biomass and hence system integrity. Species Species within the genus ''Planorbella'' include: * '' Planorbella ammon'' (Gould, 1855) * '' Planorbella binneyi'' (Tryon, 1867) * ''Planorbella campanulata'' (Say, 1821) * '' Planorbella columbiensis'' (F. C. Baker, 1945) * ''Planorbella corpulenta'' (Say, 1824) * ''Planorbella dur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planorbella Campanulata
''Planorbella campanulata'' is a species of gastropods belonging to the family Planorbidae Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs. Unlike most molluscs, the blood of ram's horn snails contains iron-based hemoglobin ins .... The species is found in Northern America. References {{Taxonbar, from=Q3695344 Planorbidae Gastropods described in 1821 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
