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Ptycheulimella Supramisella
''Ptycheulimella'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Ptycheulimella'' Sacco, 1892. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588485 on 2011-11-29 Description The shell has an elongate-conic shape. The axial sculpture consists of obsolete ribs, frequently only shown in the early turns of the teleoconch. Spiral sculpture, if present, consists of microscopic striations only. Species Species within the genus ''Ptycheulimella'' include: * '' Ptycheulimella eulimelloides'' (Nomura, 1936) * '' Ptycheulimella hemiplicata'' (Nomura, 1936) * '' Ptycheulimella misella'' (Yokoyama, 1922) * '' Ptycheulimella rikuzenica'' (Nomura, 1936) * '' Ptycheulimella supramisella'' (Nomura, 1938) * ''Ptycheulimella syrnoliformis'' (Nomura, 1938) * ''Ptycheulimella yabei ''Ptycheulimella'' is a genus of sea snails, marine gastropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below 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 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 of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
