Kalloconus
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''Kalloconus'' is a subgenus of sea snails, marine gastropod
mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000  extant species of molluscs are recognized. The number of fossil species is e ...
s in the
family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
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), ''Kalloconus'' has become a subgenus of ''Conus'' as ''Conus (Kalloconus)'' da Motta, 1991 (type species: ''Conus pulcher'' ightfoot 1786) 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
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Distinguishing characteristics

The Tucker & Tenorio 2009 taxonomy distinguishes ''Kalloconus'' 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 A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex. A cone is formed by a set of line segments, half-lines, or lines conn ...
. * Subgenus ''Kalloconus'' da Motta, 1991 ::Shell characters (living and fossil species) :::The shell is large and obconic with broad angulate shoulders slightly rounded on the edges. The protoconch is multispiral. The anal notch is moderately deep to deep in larger specimens, and shallower in smaller specimens. The shell is ornamented with spots and dashes in spiral rows, and cords are either absent, very small and numerous, or die out early on whorl tops. The periostracum is smooth and thin, and the operculum is moderate in size. ::Radular tooth (not known for fossil species) :::The anterior sections of the radular tooth is substantially longer than the posterior section, and the blade is relatively short being one third to one-half the length of the anterior section. A basal spur is present, the barb is short. The radular tooth has a major row of serrations flanked by rows of smaller serrations. ::Geographical distribution :::The species in this genus occur in the
West African West Africa or Western Africa is the westernmost region of Africa. The United Nations geoscheme for Africa#Western Africa, United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Ghana, Guinea, ...
region to
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirel ...
. ::Feeding habits :::These cone snails are vermivorous, meaning that the cones prey on
polychaete Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made ...
worms.


Species list

This list of species is based on the information in the
World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialis ...
(
WoRMS Worms may refer to: *Worm, an invertebrate animal with a tube-like body and no limbs Places *Worms, Germany Worms () is a city in Rhineland-Palatinate, Germany, situated on the Upper Rhine about south-southwest of Frankfurt am Main. It had ...
) list. Species within the genus ''Kalloconus'' include: * ''Kalloconus byssinus'' (Röding, 1798): synonym of '' Conus byssinus'' (Röding, 1798) * ''Kalloconus pulcher'' ( ightfoot 1786): synonym of '' Conus pulcher'' ightfoot 1786


References


Further reading

* Kohn A. A. (1992). "Chronological Taxonomy of ''Conus'', 1758-1840". Smithsonian Institution Press, Washington and London. * Monteiro A. (ed.) (2007)
The Cone Collector 1
1-28. * Berschauer D. (2010). ''Technology and the Fall of the Mono-Generic Family'
The Cone Collector 15
pp. 51-54 * Puillandre N., Meyer C.P., Bouchet P., and Olivera B.M. (2011), ''Genetic divergence and geographical variation in the deep-water Conus orbignyi complex (Mollusca: Conoidea)'', Zoologica Scripta 40(4) 350-363.


External links


To World Register of Marine Species

Gastropods.com: ''Conidae'' setting forth the genera recognized therein.
{{Taxonbar, from=Q16983849 Conidae Gastropod subgenera