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''Calibanus'' is a subgenus of sea snails, cone snails, marine gastropod mollusks in the genus Conus, 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), ''Calibanus '' has become a subgenus of ''Conus'': ''Conus (Calibanus )'' da Motta, 1991 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 ''Calibanus'' 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 ''Calibanus'' da Motta, 1991 ::Shell characters (living and fossil species) :::The protoconch is paucispiral, and the shell is turbinate in shape. The anal notch is moderate to deep. The anterior end of the shell is darkened, and may be brown or purple. Tent markings on the shell are poorly developed or may be absent, spiral lines of minute tents are absent, and textile bars are absent. 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. Serrations and a terminating cusp on the radular tooth are present. ::Geographical distribution :::The one species in this genus occurs in the Indo-Pacific region.. ::Feeding habits :::The one species in this genus is molluscivorous (meaning that it preys upon molluscs). It is reported to prey on other cone species, most frequently ''Phasmoconus radiatus'' (Gmelin, 1791).〔Espino, S.S., Kohn, J.J., Villanueva, J.A., Heralde, F.M., III, Cornweli, P.S., Concepcion, G.P., Olivera, B.M., & Santox, A.D. (2008), ''Feeding behavior, phylogeny, and toxicity of Conus furvus Reeve, 1843 (Gastropoda: Neogastropoda: Conidae).'' The Nautilus 122:143-150.〕 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「Calibanus (gastropod)」の詳細全文を読む スポンサード リンク
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