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Palacanthilhiopsis Margritae
''Palacanthilhiopsis'' is a genus of very small or minute freshwater snails with an operculum, aquatic gastropod mollusks in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis Bernasconi, 1988. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=742119 on 2015-02-19 Species Species within the genus ''Palacanthilhiopsis'' include: * '' Palacanthilhiopsis carolinae'' Girardi, 2009 * '' Palacanthilhiopsis kuiperi'' Girardi, 2009 * '' Palacanthilhiopsis margritae'' Boeters & Falkner, 2003 * ''Palacanthilhiopsis vervierii ''Palacanthilhiopsis vervierii'' is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis vervierii Bernasconi, 1988. Accessed thr ...'' Bernasconi, 1988 References Nomenclator Zoologicus info {{Taxonbar, from=Q7126148 Moitessieriidae Taxonomy articles created by Polbot< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...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] |
Palacanthilhiopsis Vervierii
''Palacanthilhiopsis vervierii'' is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis vervierii Bernasconi, 1988. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=742120 on 2015-02-19 This species is endemic to 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 .... References {{Taxonbar, from=Q3318089 Palacanthilhiopsis Endemic molluscs of Metropolitan France Gastropods described in 1988 Taxonomy articles created by Polbot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palacanthilhiopsis Margritae
''Palacanthilhiopsis'' is a genus of very small or minute freshwater snails with an operculum, aquatic gastropod mollusks in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis Bernasconi, 1988. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=742119 on 2015-02-19 Species Species within the genus ''Palacanthilhiopsis'' include: * '' Palacanthilhiopsis carolinae'' Girardi, 2009 * '' Palacanthilhiopsis kuiperi'' Girardi, 2009 * '' Palacanthilhiopsis margritae'' Boeters & Falkner, 2003 * ''Palacanthilhiopsis vervierii ''Palacanthilhiopsis vervierii'' is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis vervierii Bernasconi, 1988. Accessed thr ...'' Bernasconi, 1988 References Nomenclator Zoologicus info {{Taxonbar, from=Q7126148 Moitessieriidae Taxonomy articles created by Polbot< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palacanthilhiopsis Kuiperi
''Palacanthilhiopsis'' is a genus of very small or minute freshwater snails with an operculum, aquatic gastropod mollusks in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis Bernasconi, 1988. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=742119 on 2015-02-19 Species Species within the genus ''Palacanthilhiopsis'' include: * '' Palacanthilhiopsis carolinae'' Girardi, 2009 * '' Palacanthilhiopsis kuiperi'' Girardi, 2009 * ''Palacanthilhiopsis margritae'' Boeters & Falkner, 2003 * ''Palacanthilhiopsis vervierii ''Palacanthilhiopsis vervierii'' is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis vervierii Bernasconi, 1988. Accessed thr ...'' Bernasconi, 1988 References Nomenclator Zoologicus info {{Taxonbar, from=Q7126148 Moitessieriidae Taxonomy articles created by Polbot [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palacanthilhiopsis Carolinae
''Palacanthilhiopsis'' is a genus of very small or minute freshwater snails with an operculum, aquatic gastropod mollusks in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis Bernasconi, 1988. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=742119 on 2015-02-19 Species Species within the genus ''Palacanthilhiopsis'' include: * '' Palacanthilhiopsis carolinae'' Girardi, 2009 * ''Palacanthilhiopsis kuiperi'' Girardi, 2009 * ''Palacanthilhiopsis margritae'' Boeters & Falkner, 2003 * ''Palacanthilhiopsis vervierii ''Palacanthilhiopsis vervierii'' is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Moitessieriidae.Bouchet, P. (2014). Palacanthilhiopsis vervierii Bernasconi, 1988. Accessed thr ...'' Bernasconi, 1988 References Nomenclator Zoologicus info {{Taxonbar, from=Q7126148 Moitessieriidae Taxonomy articles created by Polbot [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...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] |
Freshwater Snail
Freshwater snails are gastropod mollusks which 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 shell, with very few exceptions. Some groups of snails that live in freshwater respire using gills, whereas 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 feeders. According to a 2008 review of the taxonomy, there are about 4,000 species of freshwater gastropods (3,795–3,972). At least 33–38 independent lineages of gastropods have successfully colonized freshwater environments. It is not possible to quantify the exact number of these lineages yet, because they have yet to be clarified within the Cerit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusca
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 gastropod ... [...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] |
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