Eugeniconus

Eugeniconus
	Apertural view of shell of Eugeniconus nobilis (Linnaeus, 1758) which represented as Conus nobilis Linnaeus, 1758
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda ; clade Hypsogastropoda ; clade Neogastropoda
Superfamily:	Conoidea
Family:	Conidae
Genus:	Conus
Subgenus:	Eugeniconus; da Motta, 1991
Type species
	Conus nobilisLinnaeus, 1758;

Last updated October 05, 2022

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

Distinguishing characteristics

The Tucker & Tenorio 2009 taxonomy distinguishes Eugeniconus 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 Eugeniconusda Motta, 1991

Shell characters (living and fossil species)

The shell is obconic to cylindrical in shape. The protoconch is paucispiral, and the whorl tops are concave. Nodules are present but die out in early to middle spire whorls. The shell is often ornamented with spiral lines of minute tents, and textile bars are absent. The anal notch is deep. The periostracum is smooth, and the operculum is small.

Radular tooth (not known for fossil species)

The anterior section of the radula is roughly equal to the posterior section. The blade is fairly long and may extend half the length of the anterior section. The basal spur is absent, and the barb is short. The waist is obvious. The radular tooth has a short row of serrations and a terminating cusp.

Geographical distribution

These species are found in the Indo-Pacific region.

Feeding habits

These species are molluscivorous (the prey on other mollusks).^[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 Eugeniconus include:^[1]

Eugeniconus cordigera(G.B. Sowerby II, 1866): synonym of Conus (Eugeniconus) cordigeraG. B. Sowerby II, 1866 represented as Conus cordigera G. B. Sowerby II, 1866
Eugeniconus friedaeda Motta, 1991: synonym of Conus nobilisLinnaeus, 1758
Eugeniconus marchionatus(Hinds, 1843): synonym of Conus (Eugeniconus) marchionatusHinds, 1843, represented as Conus marchionatus Hinds, 1843
Eugeniconus nobilis(Linnaeus, 1758): synonym of Conus (Eugeniconus) nobilis Linnaeus, 1758, represented as Conus nobilis Linnaeus, 1758

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References

1 2 Eugeniconus da Motta, 1991 . Retrieved through: World Register of Marine Species on 06/24/11.
↑ 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 Eugeniconus da Motta, 1991 . Retrieved through: World Register of Marine Species on 06/24/11.

[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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