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Parviterebra
''Parviterebra'' is a small genus of sea snails in the family Columbellidae. Species of this genus occur off Réunion and Australia. Species There are six species in the genus ''Parviterebra'': * ''Parviterebra brazieri ''Parviterebra brazieri'' is a species of sea snail in the family Columbellidae. This marine species is endemic to marine waters around Australia, where it occurs off Victoria. Description The length of the shell attains 14 mm, its diamet ...'' (Angas, 1875) * '' Parviterebra paucivolvis'' Pilsbry, 1904 * '' Parviterebra separanda'' Tomlin, 1923 * '' Parviterebra thyraea'' (Melvill, 1897) * '' Parviterebra trilineata'' (A. Adams & Angas, 1864) * '' Parviterebra turriformis'' Drivas & Jay, 1990 References * Wilson, B. 1994. Australian marine shells. Prosobranch gastropods. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp. * Drivas, J. & Jay, M., 1990. The Columbellidae of Reunion Island (Mollusca: Gastropoda). Annals of the Natal Museum 31: 163-200 Ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parviterebra Brazieri
''Parviterebra brazieri'' is a species of sea snail in the family Columbellidae. This marine species is endemic to marine waters around Australia, where it occurs off Victoria. Description The length of the shell attains 14 mm, its diameter 4 mm. (Original description) The shell is narrowly fusiform, attenuate at both ends. Its aspect is smooth, graceful, thin and translucent. The spire is prominent, acute, equalling the aperture, milky white. The base of the shell is chesnut, but the apex is stained, fulvous, and on the body whorl zoned with four bands of very pale yellow. The shell contains eight whorls, sloping, obliquely ribbed. The ribs are smooth, rounded, slightly raised, obtusely angular above, obsolete anteriorly. The suture is well impressed. The aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbellidae
The Columbellidae, the dove snails or dove shells, are a family (biology), family of minute to small sea snails, marine (ocean), marine gastropod mollusks in the order Neogastropoda.Bouchet, P.; Gofas, S. (2010). Columbellidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=23009 on 2010-11-04 Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . . 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 Distribution Species in this family are found worldwide,http://shells.tricity.wsu.edu/ArcherdShellCollection/Gastropoda/Columbariidae.html but are most abundant in shallow tropical water. Subfamilies According to the Taxonomy of the Gastrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below 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 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 of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example species in the genus '' Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known .... Anatomy Sea snails are a very large group o ... [...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 opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Réunion
Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an island in the Indian Ocean that is an overseas department and region of France. It is located approximately east of the island of Madagascar and southwest of the island of Mauritius. , it had a population of 868,846. Like the other four overseas departments, Réunion also holds the status of a region of France, and is an integral part of the French Republic. Réunion is an outermost region of the European Union and is part of the eurozone. Réunion and the fellow French overseas department of Mayotte are the only eurozone regions located in the Southern Hemisphere. As in the rest of France, the official language of Réunion is French. In addition, a majority of the region's population speaks Réunion Creole. Toponymy When France took possession of the island in the seventeenth century, it was named Bourbon, after the dynasty that then ruled France. To br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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