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Darrylia Peggywilliamsae
''Darrylia'' is a genus of sea snails, marine gastropod mollusks in the family Horaiclavidae. It was previously included tentatively within the subfamily Crassispirinae of the family Turridae. Description Species in this genus show a broad protoconch with 1.5 whorls and without spiral ornamentation. The claviform shell contains strong axial ribs, crossed by narrower spiral cords, and lacks a sutural cord. The elongate-ovate aperture measures about ⅓ of the total length of the shell. The lip shows a strong varix A varix (pl. varices) is an abnormally dilated vessel with a tortuous course. Varices usually occur in the venous system, but may also occur in arterial or lymphatic vessels. Examples of varices include: * Varicose veins, large tortuous veins usua .... Species Species within the genus ''Darrylia'' include: * '' Darrylia abdita'' Espinosa & Ortea, 2018 * '' Darrylia bizantina'' Espinosa & Ortea, 2018 * '' Darrylia clendenini'' (García, 2008) * '' Darrylia harryle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 taxonomy (biology), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
