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Cyclostrema Supremum
''Cyclostrema supremum'' is a species of sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Liotiidae.Bouchet, P. (2012). ''Cyclostrema supremum'' Melvill & Standen, 1903. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=701869 on 2012-12-03 Description The height of the shell attains 1.5 mm and its diameter 4 mm. The white shell has a plane-discoidal shape with 5 Whorl (mollusc), whorls. The species is beautifully cancellate and Sculpture (mollusc), sculptured, though more or less smooth below the periphery and around the narrow but deep Umbilicus (mollusc), umbilicus. The whorls are all channeled at the Suture (anatomy), sutures, very distinct (seen with a lens) on the two apical whorls. The penultimate whorl contains one keels and the body whorl three keels. The oblique Aperture (mollusc), aperture is oval. Distribution This species occurs in the subtidal zone of the Persi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
