|
Typhlosyrinx Supracostata
''Typhlosyrinx supracostata'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Raphitomidae.MolluscaBase eds. (2020). MolluscaBase. Typhlosyrinx supracostata (Schepman, 1913). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=435185 on 2020-04-25 This is not ''Typhlosyrinx supracostata'' Matsukuma et al., 1991 (synonym of ''Leiosyrinx supracostata'') Description The length of the shell varies between 20 mm and 35 mm. (Original description) The thin, fusiform shell has a short siphonal canal. It is shining and is light yellowish-white. The protoconch is wanting. The 8 remaining whorls are nearly regularly convex, very slightly excavated below the conspicuous but shallow suture in the lower whorls, more so in upper ones. The Sculpture (mollusc), sculpture consists in the upper whorls of thick axial ribs, disappearing on the sixth Whorl (mollusc), whorl, which is 9-ribbed. The lower ... [...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] |
