Photinula Virginalis
''Photinula virginalis'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ... mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.MolluscaBase (2018). ''Photinula virginalis'' Rochebrune & Mabille, 1885. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=864794 on 2018-12-28Rochebrune A.-T. de & Mabille J. (1885). Diagnoses de mollusques nouveaux, recueillis par les membres de la mission du Cap Horn et M. Lebrun, Préparateur au Muséum, chargé d’une mission à Santa-Cruz de Patagonie. Bulletin de la Société Philomathique de Paris. ser. 7, 9(3): 100-111. Description The length of the shell attains 17.3 ...
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Species
In biology, a species is the basic unit of Taxonomy (biology), 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 reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reprod