|
Avenionia Ligustica
''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 5 May 2014. *''Avenionia berengueri'' *'' Avenionia bourguignati'' *''Avenionia brevis'' (Draparnaud, 1805) *'' Avenionia ligustica'' *''Avenionia parvula ''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Vers ...'' *'' Avenionia roberti'' Boeters, 1967 References Hydrobiidae Taxonomy articles created by Polbot {{Hydrobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 taxonomy (biology), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avenionia Berengueri
''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 5 May 2014. *'' Avenionia berengueri'' *'' Avenionia bourguignati'' *''Avenionia brevis'' (Draparnaud Jacques Philippe Raymond Draparnaud (3 June 1772, Montpellier – 2 February 1804) was a French naturalist, malacologist and botanist. Draparnaud is considered the father of malacology in France. He was professor of medicine and pathology at th ..., 1805) *'' Avenionia ligustica'' *'' Avenionia parvula'' *'' Avenionia roberti'' Boeters, 1967 References Hydrobiidae Taxonomy articles created by Polbot {{Hydrobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avenionia Roberti
''Avenionia roberti'' is a species of minute freshwater snail with a gill and an operculum, an aquatic gastropod mollusk or micromollusk in the family Hydrobiidae. Distribution and conservation status ''A. roberti'' occurs in Germany, where it is considered critically endangered (''vom Aussterben bedroht''), Belgium and the Netherlands. Habitat and ecology ''A. roberti'' inhabits groundwaters in karst Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant ro ... areas. References Hydrobiidae Avenionia Gastropods described in 1967 {{Hydrobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avenionia Parvula
''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 5 May 2014. *''Avenionia berengueri'' *'' Avenionia bourguignati'' *''Avenionia brevis'' (Draparnaud Jacques Philippe Raymond Draparnaud (3 June 1772, Montpellier – 2 February 1804) was a French naturalist, malacologist and botanist. Draparnaud is considered the father of malacology in France. He was professor of medicine and pathology at th ..., 1805) *'' Avenionia ligustica'' *'' Avenionia parvula'' *'' Avenionia roberti'' Boeters, 1967 References Hydrobiidae Taxonomy articles created by Polbot {{Hydrobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avenionia Ligustica
''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 5 May 2014. *''Avenionia berengueri'' *'' Avenionia bourguignati'' *''Avenionia brevis'' (Draparnaud, 1805) *'' Avenionia ligustica'' *''Avenionia parvula ''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Vers ...'' *'' Avenionia roberti'' Boeters, 1967 References Hydrobiidae Taxonomy articles created by Polbot {{Hydrobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Philippe Raymond Draparnaud
Jacques Philippe Raymond Draparnaud (3 June 1772, Montpellier – 2 February 1804) was a French naturalist, malacologist and botanist. Draparnaud is considered the father of malacology in France. He was professor of medicine and pathology at the Faculté de Médecine de Montpellier. Draparnaud understood the breadth of the fauna he studied, as can be seen in a quote from him, in ''Histoire Naturelle des Mollusques'', published in 1805:Au reste, quoique j'aie décrit pour la France seule un bien plus grand nombre d'espèces que Muller et Schroeter n'ent ont fait connoître pour l'Europe entière, et trois fois autant que Geoffroy et Poiret n'en ont observé dans les environs de Paris, je suis convaincu qu'il reste encore en ce genre bien des découvertes à faire. Translation: As for the remainder, even though I have described for France a greater number of species than Müller and Schroeter made known for the whole of Europe, and three times as many as Geoffroy and Poiret obs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avenionia Brevis
''Avenionia brevis'' is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is found in eastern France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac .... It is known from freshwater springs, and is suspected to also live in subterranean habitats. The species is protected by law in France. References Avenionia Hydrobiidae Gastropods described in 1805 Endemic molluscs of Metropolitan France Taxonomy articles created by Polbot {{Hydrobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avenionia Bourguignati
''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 5 May 2014. *''Avenionia berengueri'' *'' Avenionia bourguignati'' *''Avenionia brevis'' (Draparnaud, 1805) *''Avenionia ligustica'' *''Avenionia parvula ''Avenionia'' is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae. Species Species within the genus ''Avenionia'' include:IUCN 2013. IUCN Red List of Threatened Species. Vers ...'' *'' Avenionia roberti'' Boeters, 1967 References Hydrobiidae Taxonomy articles created by Polbot {{Hydrobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrobiidae
Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum; they are in the order Littorinimorpha. Distribution Hydrobiidae are found in much of the world, inhabiting all continents except Antarctica. In Australia alone there are over 260 species in the family. Description These are very small or minute snails, with a shell height of less than 8 mm. The dextrally-coiled shells are smooth (except for growth lines conforming to the shape of the outer lip) and are usually rather nondescript. The shell offers very few robust characteristics to the systematist who is attempting to classify the species within this family. This difficulty is compounded by a high degree of intraspecific variation. Descriptions often have to be based on the characteristics of the operculum, radula and penis. The shell of species within this family varies from planispiral to needle-shaped. The shell may hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
