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Ilanga Biradiatula
''Ilanga biradiatula'' is a species of sea snail, a marine gastropod mollusk in the family Solariellidae.WoRMS (2012). ''Ilanga biradiatula'' (Martens, 1902). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=567645 on 2012-12-03 Description The size of the shell attains 16 mm. The rhipidoglossan radula is unusually short, about 1.2 mm long and about half as wide. The middle plate is heavily curved and has on each side five strong teeth with tips directed towards the rear. The two inner intermediate plates are about as wide as long. The cutting edge of the first is substantially bent over and turned slightly towards the center, but much smaller than that of the middle plate. Its side edge has five teeth, the central part one or two. The cutting edge of the following plate is more directed towards the middle and has five teeth on the longer side. The third intermediate plate is significantly greater, approximat ... [...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] |
