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Callipara Zululandensis
''Callipara'' is a genus of sea snails, marine gastropod mollusks in the family Volutidae. Species The following species are recognised in the genus ''Callipara'': * '' Callipara africana'' (Reeve, 1856) * ''Callipara aikeni'' Veldsman, 2012 * '' Callipara aphrodite'' (Bondarev, 1999) * '' Callipara bullatiana'' (Weaver & du Pont, 1967) * '' Callipara casaana'' Childs, R. Aiken & Bail, 2020 * '' Callipara duponti'' (Weaver, 1968) * ''Callipara festiva'' (Lamarck, 1811) * '' Callipara kurodai'' (Kawamura, 1964) * ''Callipara ponsonbyi'' (Smith, 1901) * '' Callipara queketti'' (Smith, 1901) * '' Callipara veldsmani'' Veldsman, 2012 * '' Callipara victoriae'' Childs, R. Aiken & Bail, 2020 * '' Callipara zululandensis'' Veldsman, 2012 Description Some of the species of the genus ''Callipara'' have a radula with vestigial lateral teeth. Teleoconch whorls are shouldered and nodulose, with the three early whorls axially ribbed. They often have with a black blotch near the siphonal can ... [...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] |
Callipara Kurodai
''Callipara kurodai'' is a species of sea snail, a marine gastropod mollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ... Volutidae, the volutes. Description Distribution References External links * Volutidae Gastropods described in 1964 {{Volutidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture (mollusc)
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal emerges for locomotion, feeding, etc. The term ''aperture'' is used for the main opening in gastropod shells, scaphopod shells, and also for ''Nautilus'' and ammonite shells. The word is not used to describe bivalve shells, where a natural opening between the two shell valves in the closed position is usually called a ''gape''. Scaphopod shells are tubular, and thus they have two openings: a main anterior aperture and a smaller posterior aperture. As well as the aperture, some gastropod shells have additional openings in their shells for respiration; this is the case in some Fissurellidae (keyhole limpets) where the central smaller opening at the apex of the shell is called an orifice, and in the Haliotidae (abalones) where the row of respiratory openings in the shell are also called orifices. In gastropods In some prosobranch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphonal Canal
The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is drawn into the mantle cavity and over the gill and which serves as a chemoreceptor to locate food. Siphonal canals allow for active transport of water to sensory organs inside the shell. Organisms without siphonal canals in their shells rely on passive or diffuse transport or water into their shell. Those with siphonal canals have a direct inhalant stream of water that interacts with sensory organs to detect concentration and direction of a stimulus, such as food or mates. In certain groups of carnivorous snails, where the siphon is particularly long, the structure of the shell has been modified in order to house and protect the soft structure of the siphon. Thus the siphonal canal is a semi-tubular extension of the aperture of the shell th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whorl (mollusc)
A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in numerous gastropods, but it is also found in shelled cephalopods including ''Nautilus'', ''Spirula'' and the large extinct subclass of cephalopods known as the ammonites. A spiral shell can be visualized as consisting of a long conical tube, the growth of which is coiled into an overall helical or planispiral shape, for reasons of both strength and compactness. The number of whorls which exist in an adult shell of a particular species depends on mathematical factors in the geometric growth, as described in D'Arcy Wentworth Thompson's classic 1917 book ''On Growth and Form'', and by David Raup. The main factor is how rapidly the conical tube expands (or flares-out) over time. When the rate of expansion is low, such that each subsequent whorl is not that much wider than the previous one, then the adult shell has numerous whorls. When the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleoconch
The gastropod shell is part of the body of a gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as conchiolin. The outermost layer is the periostra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus. The radula is unique to the molluscs, and is found in every class of mollusc except the bivalves, which instead use cilia, waving filaments that bring minute organisms to the mouth. Within the gastropods, the radula is used in feeding by both herbivorous and carnivorous snails and slugs. The arrangement of teeth ( denticles) on the radular ribbon varies considerably from one group to another. In most of the more ancient lineages of gastropods, the radula is used to graze, by scraping diatoms and other microscopic algae off rock surfaces and other substrates. Predatory marine snails such as the Naticidae use the radula plus an acidic secretion to bore through the shell of other molluscs. Other predatory marine snails ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callipara Zululandensis
''Callipara'' is a genus of sea snails, marine gastropod mollusks in the family Volutidae. Species The following species are recognised in the genus ''Callipara'': * '' Callipara africana'' (Reeve, 1856) * ''Callipara aikeni'' Veldsman, 2012 * '' Callipara aphrodite'' (Bondarev, 1999) * '' Callipara bullatiana'' (Weaver & du Pont, 1967) * '' Callipara casaana'' Childs, R. Aiken & Bail, 2020 * '' Callipara duponti'' (Weaver, 1968) * ''Callipara festiva'' (Lamarck, 1811) * '' Callipara kurodai'' (Kawamura, 1964) * ''Callipara ponsonbyi'' (Smith, 1901) * '' Callipara queketti'' (Smith, 1901) * '' Callipara veldsmani'' Veldsman, 2012 * '' Callipara victoriae'' Childs, R. Aiken & Bail, 2020 * '' Callipara zululandensis'' Veldsman, 2012 Description Some of the species of the genus ''Callipara'' have a radula with vestigial lateral teeth. Teleoconch whorls are shouldered and nodulose, with the three early whorls axially ribbed. They often have with a black blotch near the siphonal can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callipara Victoriae
''Callipara'' is a genus of sea snails, marine gastropod mollusks in the family Volutidae. Species The following species are recognised in the genus ''Callipara'': * '' Callipara africana'' (Reeve, 1856) * ''Callipara aikeni'' Veldsman, 2012 * '' Callipara aphrodite'' (Bondarev, 1999) * '' Callipara bullatiana'' (Weaver & du Pont, 1967) * ''Callipara casaana'' Childs, R. Aiken & Bail, 2020 * '' Callipara duponti'' (Weaver, 1968) * ''Callipara festiva'' (Lamarck, 1811) * '' Callipara kurodai'' (Kawamura, 1964) * ''Callipara ponsonbyi'' (Smith, 1901) * '' Callipara queketti'' (Smith, 1901) * '' Callipara veldsmani'' Veldsman, 2012 * '' Callipara victoriae'' Childs, R. Aiken & Bail, 2020 * ''Callipara zululandensis'' Veldsman, 2012 Description Some of the species of the genus ''Callipara'' have a radula with vestigial lateral teeth. Teleoconch whorls are shouldered and nodulose, with the three early whorls axially ribbed. They often have with a black blotch near the siphonal canal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callipara Veldsmani
''Callipara'' is a genus of sea snails, marine gastropod mollusks in the family Volutidae. Species The following species are recognised in the genus ''Callipara'': * '' Callipara africana'' (Reeve, 1856) * ''Callipara aikeni'' Veldsman, 2012 * '' Callipara aphrodite'' (Bondarev, 1999) * '' Callipara bullatiana'' (Weaver & du Pont, 1967) * ''Callipara casaana'' Childs, R. Aiken & Bail, 2020 * '' Callipara duponti'' (Weaver, 1968) * ''Callipara festiva'' (Lamarck, 1811) * '' Callipara kurodai'' (Kawamura, 1964) * ''Callipara ponsonbyi'' (Smith, 1901) * '' Callipara queketti'' (Smith, 1901) * '' Callipara veldsmani'' Veldsman, 2012 * ''Callipara victoriae'' Childs, R. Aiken & Bail, 2020 * ''Callipara zululandensis'' Veldsman, 2012 Description Some of the species of the genus ''Callipara'' have a radula with vestigial lateral teeth. Teleoconch whorls are shouldered and nodulose, with the three early whorls axially ribbed. They often have with a black blotch near the siphonal canal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callipara Queketti
''Callipara queketti'' is a species of sea snail, a marine gastropod mollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ... Volutidae, the volutes. Description Distribution References External links * Volutidae Gastropods described in 1901 {{Volutidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callipara Ponsonbyi
''Callipara ponsonbyi'' is a species of sea snail, a marine gastropod mollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ... Volutidae, the volutes.Bouchet, P. (2017). Callipara ponsonbyi. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=998257 on 18 October 2017 References * Bail, P & Poppe, G. T. 2001. ''A conchological iconography: a taxonomic introduction of the recent Volutidae''. Hackenheim-Conchbook, 30 pp, 5 pl. (updated October 2008 for WoRMS) * Aiken R.P. (2010) Volutidae. pp. 314–333, in: Marais A.P. & Seccombe A.D. (eds), ''Identification guide to the seashells of South Africa. Volume 1.'' Groenkloof: Centre for Molluscan Studies. 376 pp. Volutidae G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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