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Dalliconus : ウィキペディア英語版
Dalliconus

''Dalliconus'' is a subgenus of sea snails, marine gastropod mollusks in the genus ''Conasprella'', family Conidae, the cone snails and their allies.〔Bouchet, P. (2015). Dalliconus Tucker & Tenorio, 2009. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=580177 on 2015-03-16〕
In the new classification of the family Conidae by Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015), ''Dalliconus'' has become a subgenus of ''Conasprella'': ''Conasprella (Dalliconus)'' 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 ''Dalliconus'' 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.〔
* Genus ''Dalliconus'' Tucker & Tenorio, 2009
::Shell characters (living and fossil species)
:::The shell is elongated to biconical in shape. The protoconch is paucispiral, the spire is scalariform. The anal notch is deep. The whorl tops on the teloconch are ornamented with two or more cords. The body whorl is conspicuously ornamented with has evenly spaced cords or sulci that continue the entire length. The periostracum is smooth, and no operculum has been observed.
::Radular tooth (not known for fossil species)
:::The anterior sections of the radular tooth is shorter than the posterior section, and the blade and posterior blade are shirt and close together. The waist and corresponding waist fold are obvious. A basal spur is present, and the barb is short. The anterior end of the shaft fold is blunt.
::Geographical distribution
:::These species are found in the West Atlantic region.
::Feeding habits
:::These species are vermivorous (meaning that they prey on marine worms).〔

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