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Cossmannica Spargana
''Cossmannica'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Cossmannica'' Dall & Bartsch, 1904. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588553 on 2011-11-29 Description The surface of the shell is polished, marked by faint lines of growth and microscopic spiral striations. The shell is not umbilicated. The basal fasciole is absent. The aperture is suboval. There are two columellar folds. Species There are nine known species within the genus ''Cossmannica'', these include the following: * ''Cossmannica aciculata'' A. Adams, 1855 * ''Cossmannica bancoensis'' Saurin, 1959 * ''Cossmannica behainei'' Saurin, 1959 * ''Cossmannica catinati'' Saurin, 1959 * ''Cossmannica champaensis'' Saurin, 1959 * ''Cossmannica discreta'' Saurin, 1959 * ''Cossmannica exesa'' Laseron, 1959 * ''Cossmannica jacksonensis'' (Dall & Bartsch, 1906) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, 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 (mollusc), 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 (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (gastropod)
The columella (meaning "little column") or (in older texts) pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image. The columella runs from the apex of the shell to the midpoint of the undersurface of the shell, or the tip of the siphonal canal in those shells which have a siphonal canal. If a snail shell is visualized as a cone of shelly material which is wrapped around a central axis, then the columella more or less coincides spatially with the central axis of the shell. In the case of shells that have an umbilicus, the columella is a hollow structure. The columella of some groups of gastropod shells can have a number of plications or folds (the columellar fold, plaits or plicae), which are usually visible when looking to the inner lip into the aperture of the shell. These folds can be wide or narrow, promine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Jacksonensis
''Cossmannica jacksonensis'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. This species is one of many other species known to exist within the genus, ''Cossmannica''.Rosenberg, G. (2011). ''Cossmannica jacksonensis'' (Dall & Bartsch, 1906). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588555 on 2011-11-29 Description The length of the shell measures approximately 6.1 mm. The teleoconch contains eight whorls.Dall & Bartsch (1906), Notes on Japanese, Indo-Pacific, and American Pyramillidae; Smithsonian Institution Distribution This marine species occurs off the coasts of Queensland, Australia, within the Great Barrier Reef The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over over an area of approximately . The reef is located in the Coral Sea, off t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Exesa
''Cossmannica exesa'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Cossmannica exesa'' Laseron, 1959. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588561 on 2011-11-29 Distribution This marine species occurs off the coasts of Queensland, Australia, within the Great Barrier Reef The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over over an area of approximately . The reef is located in the Coral Sea, off the coast of Queensland, ... and other various marine areas nearby. References External links World Register of Marine Species Pyramidellidae Gastropods described in 1959 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Discreta
''Cossmannica discreta'' is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Cossmannica discreta'' Saurin, 1959. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588556 on 2011-11-29 Distribution This marine species occurs off the coasts of Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it .... References External links World Register of Marine Species Pyramidellidae Gastropods described in 1959 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Champaensis
''Cossmannica champaensis'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. The species is one of a number within the genus ''Cossmannica''.Rosenberg, G. (2011). ''Cossmannica champaensis'' Saurin, 1959. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588559 on 2011-11-29 Distribution This marine species occurs off the coasts of Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it .... References External links World Register of Marine Species Pyramidellidae Gastropods described in 1959 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Catinati
''Cossmannica catinati'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Cossmannica catinati'' Saurin, 1959. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588557 on 2011-11-29 Distribution This species, along with many other species within this genus of gastropods, occurs throughout the Gulf of Thailand and off the coasts of Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it .... References External links World Register of Marine Species Pyramidellidae Gastropods described in 1959 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Behainei
''Cossmannica behainei'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. The species is one of a number within the genus ''Cossmannica''.Rosenberg, G. (2011). ''Cossmannica behainei'' Saurin, 1959. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588558 on 2011-11-29 Distribution This marine species occurs off the coasts of Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it .... References External links World Register of Marine Species Pyramidellidae Gastropods described in 1959 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Bancoensis
''Cossmannica bancoensis'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Cossmannica bancoensis'' Saurin, 1959. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588562 on 2011-11-29 Distribution This species occurs in the Gulf of Thailand and off the coasts of Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it .... References External links World Register of Marine Species Pyramidellidae Gastropods described in 1959 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cossmannica Aciculata
''Cossmannica aciculata'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Cossmannica aciculata'' A. Adams, 1854. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588554 on 2011-11-29 Description The elongate-conic shell tapers to an extremely slender apex. The polished shell is white, with a slight suffusion of brown at the apex and near the aperture. Its length measures 17.3 mm. The two whorls of the protoconch are large, compared with the early whorls of the teleoconch, helicoid, depressed, smooth, having their axis almost at a right angle to the axis of the later whorls and extending beyond the outline of these on the left side. The first three whorls of the teleoconch are well rounded, the next five considerably flattened, the seven others decidedly obese. The first five are vitreous, but as the shell grows older it gradu ... [...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 pros ... [...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] |
