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''Conasprelloides'' is a subgenus of sea snails, marine gastropod mollusks in the family Conidae, the cone snails and their allies. In the new classification of the family Conidae by Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015), ''Conasprelloides'' has become a subgenus of ''Conus'': ''Conus (Dauciconus)'' Cotton, 1945 represented as ''Conus'' Linnaeus, 1758 〔 ( 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 ''Conasprelloides'' 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 ''Conasprelloides'' Tucker & Tenorio, 2009 ::Shell characters (living and fossil species) :::The shell is turbinate to elongate conical in shape. The protoconch is paucispiral, the body whorl has ridges, and the whorl tops have nodules that may persist on later whorls. The anal notch is deep. The color pattern is simple and without clear spiral lines. The periostracum is tufted, and the operculum is small. Similar to ''Gladioconus'', however the species in this genus do not retain nodules into their outer whorls, and do not have well developed darker brown markings on the whorl tops beyond the early whorls. ::Radular tooth (not known for fossil species) :::The anterior section of the radula is usually shorter than posterior section. The blade is indistinct but long and covers most of the length of the anterior section of the radular tooth. A basal spur is present, and the barb is short. The radular tooth has serrations and the terminating cusp is internal. ::Geographical distribution :::These species are found in the West Atlantic.. ::Feeding habits :::These species are presumed to be vermivorous (meaning that they prey on marine worms) based upon the aspect of the radular tooth.〔 Several published studies consider these species vermivores, discussing a unique conopressin in the venom chemistry, without providing details on their diet.〔Moller, C. & Mari, F. (2007) ''A vasopressin/oxytocin-related conopeptide with y-carboxyglutamate at position 8.'' Biochemical Journal 404:413-419.〕〔Zugasti-Cruz, A., Aguilar, M.B., Falcon, A., Olivera, B.M., & Heimer de la Cotera, E.P. (2008) ''Two new 4-cys conotoxins (framework 14) of the vermivorous snail Conus austini from the Gulf of Mexico with activity in the central nervous system of mice.'' Peptides 29:179-185.〕 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「Conasprelloides」の詳細全文を読む スポンサード リンク
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