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''Chelyconus'' is a subgenus of sea snails, cone snails, marine gastropod mollusks in the genus Conus, family Conidae, the cone snails and their allies.〔Bouchet, P. (2015). Boucheticonus Tucker & Tenorio, 2013. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=751378 on 2015-06-11〕 In the new classification of the family Conidae by Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015), ''Chelyconus'' has become a subgenus of ''Conus'': ''Conus (Chelyconus)'' Mörch, 1852 represented as ''Conus'' 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 ''Chelyconus'' 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 ''Chelyconus'' Mörch, 1852 ::Shell characters (living and fossil species) :::The protoconch is multispiral, the shell is ovate to elongated conical in shape, the spire is conical to convex, the shoulders are rounded, and the surface of the shell has minute ridges. The anterior notch may be absent to moderate in depth, and the shell has a moderate to shallow anal notch. The periostracum is smooth, and the operculum is small. ::Radular tooth (not known for fossil species) :::The anterior section of the radula is much longer than posterior section, and the waist is not obvious. A basal spur is absent, the barb and blade are short. The accessory process is well developed and is not hooked on the distal end. ::Geographical distribution :::One species is found in the Atlantic and the other occurs in the Eastern Pacific region. ::Feeding habits :::These species are piscivorous (meaning that they prey on fish).〔〔Rolan, E. (2005) ''Malacological Fauna from the Cape Verde Archipelago. Part 1 Polyplacophora and Gastropods.'' ConchBooks, Hackenheim, Germany, 455 pp.〕〔Olivera, B.M. (2002) ''Conus venom peptides: reflections from the biology of clades and species." Annual Review of Ecology and Systematics 33:25-47.〕 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「Chelyconus」の詳細全文を読む スポンサード リンク
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