Kalloconus

Kalloconus
	Apertural view of shell of Conus pulcher(Lightfoot, 1786), collected at Banjul, Gambia
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda ; clade Hypsogastropoda ; clade Neogastropoda
Superfamily:	Conoidea
Family:	Conidae
Genus:	Conus
Subgenus:	Kalloconus; da Motta, 1991
Type species
	Conus pulcher[Lightfoot], 1786;
Synonyms
	Conus (Kalloconus)da Motta, 1991

Last updated March 30, 2023

Kalloconus is a subgenus of sea snails, marine gastropod mollusks in the family Conidae, the cone snails and their allies.^[1]

Distinguishing characteristics

The Tucker & Tenorio 2009 taxonomy distinguishes Kalloconus from Conus in the following ways:^[3]

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.^[3]

Subgenus Kalloconusda 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 region to Europe.

Feeding habits

These cone snails are vermivorous, meaning that the cones prey on polychaete worms.^[3]

Species list

This list of species is based on the information in the World Register of Marine Species (WoRMS) list. Species within the genus Kalloconus include:^[1]

Kalloconus byssinus (Röding, 1798): synonym of Conus byssinus (Röding, 1798)
Kalloconus pulcher ([Lightfoot], 1786): synonym of Conus pulcher [Lightfoot], 1786

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References

1 2 Kalloconus da Motta, 1991 . Retrieved through: World Register of Marine Species on 07/21/11.
↑ 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
1 2 3 Tucker J.K. & Tenorio M.J. (2009), Systematic Classification of Recent and Fossil Conoidean Gastropods, ConchBooks, Hankenheim, Germany, 295 pp.

External links

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[WoRMS-1] 1 2 Kalloconus da Motta, 1991 . Retrieved through: World Register of Marine Species on 07/21/11.

[Puillandre-2] 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

[Systematic-3] 1 2 3 Tucker J.K. & Tenorio M.J. (2009), Systematic Classification of Recent and Fossil Conoidean Gastropods, ConchBooks, Hankenheim, Germany, 295 pp.

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