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''Parviconus'' is a subgenus of sea snails, marine gastropod mollusks in the genus ''Conasprella'', family Conidae, the cone snails and their allies.〔Bouchet, P. (2015). Conasprella (Parviconus) Cotton & Godfrey, 1932. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=834392 on 2015-03-25〕〔Tucker J.K. & Tenorio M.J. (2009) Systematic classification of Recent and fossil conoidean gastropods. Hackenheim: Conchbooks. 296 pp.〕 This genus currently (November 2011) is still treated by some experts as an "alternative representation" of this group of species. In the new classification of the family Conidae by Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015), ''Kohniconus'' has become a subgenus of ''Conasprella'': ''Conasprella (Kohniconus)'' Tucker & Tenorio, 2009 represented as ''Conasprella'' Thiele, 1929 〔 ( Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015). ''One, four or 100 genera? A new classification of the cone snails''. Journal of Molluscan Studies. 81: 1-23 ) 〕 ==Distinguishing characteristics== The Tucker & Tenorio 2009 taxonomy distinguishes ''Parviconus'' from ''Conus'' in the following ways:〔Tucker J.K. & Tenorio M.J. (2009), Systematic Classification of Recent and Fossil Conoidean Gastropods, ConchBooks, Hankenheim, Germany, 295 pp.〕 * Genus ''Conus'' ''sensu stricto'' Linnaeus, 1758 :: Shell characters (living and fossil species) :::The basic shell shape is conical to elongated conical, has a deep anal notch on the shoulder, a smooth periostracum and a small operculum. The shoulder of the shell is usually nodulose and the protoconch is usually multispiral. Markings often include the presence of tents except for black or white color variants, with the absence of spiral lines of minute tents and textile bars. ::Radular tooth (not known for fossil species) :::The radula has an elongated anterior section with serrations and a large exposed terminating cusp, a non-obvious waist, blade is either small or absent and has a short barb, and lacks a basal spur. ::Geographical distribution :::These species are found in the Indo-Pacific region. ::Feeding habits :::These species eat other gastropods including cones.〔 * Subgenus ''Parviconus'' Cotton & Godfrey, 1932 ::Shell characters (living and fossil species) :::The shell is small, turbinate in shape with parallel sides contracting towards the base. The protoconch is paucispiral. The spire is scalariform, with concave whorl tops which do not have cords. A dentiform plait is present. The anal notch is shallow, and an anterior notch is absent. The shell may be ornamented with nodules that persist. The details of the periostracum and operculum are unknown. ::Radular tooth (not known for fossil species) :::The anterior section of the radular tooth is shorter than the posterior section, and has a well-developed blade and posterior blade that covers most of the anterior section. There is a blunt shaft fold. A basal spur is present, and the barb is short. ::Geographical distribution :::The only known species in this genus occurs in the Australian region. ::Feeding habits :::These cone snails are presumed to be vermivorous, meaning that thet prey on polychaete worms, based upon the radular tooth morphology.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Parviconus」の詳細全文を読む スポンサード リンク
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