Lautoconus

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

Lautoconus
Apertural view of shell of Conus hybridus (Kiener, 1845).
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily:
Conoidea
Family:
Conidae
Genus:
Conus
Subgenus:
Lautoconus

Monterosato, 1923
Type species
Conus mediterraneus Hwass in Bruguière, 1792
Synonyms
  • Africonus Petuch, 1975
  • Conus (Lautoconus) Monterosato, 1923
  • Varioconus da Motta, 1991

In the latest classification of the family Conidae by Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015), Lautoconus has become a subgenus of Conus as Conus (Lautoconus) Monterosato, 1923(type species: Conus mediterraneus Hwass in Bruguière, 1792) represented as Conus Linnaeus, 1758 [2]

Distinguishing characteristics

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

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 Lautoconus Monterosato, 1923
Shell characters (living and fossil species)
The shell is turgid in shape with convex sides. The protoconch is paucispiral. The whorl tops are ornamented with cords that reach the middle spire whorls and often persist. The anal notch is shallow to moderate in depth. The periostracum is smooth and thin, and the operculum is of moderate size.
Radular tooth (not known for fossil species)
The anterior section of the radular tooth is equal to shorter than the posterior section, and blade is long and covers most of the anterior section. A basal spur is present, and the barb is short. The radular tooth has serrations in one or two rows.
Geographical distribution
The species in this genus occur in the occur in the West African and Mediterranean regions..
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 Lautoconus include:[1]

  • Lautoconus aemulus Reeve, 1844: synonym of Conus (Lautoconus) aemulus Reeve, 1844, represented as Conus aemulus Reeve, 1844
  • Lautoconus africanus Kiener, 1848: synonym of Conus (Lautoconus) africanus Kiener, 1848, represented as Conus africanus Kiener, 1848
  • Lautoconus albuquerquei Trovão, 1978: synonym of Conus (Lautoconus) albuquerquei Trovão, 1978, represented as Conus albuquerquei Trovão, 1978
  • Lautoconus alexandrinus Kaicher, 1977: synonym of Conus (Lautoconus) alexandrinus Kaicher, 1977, represented as Conus alexandrinus Kaicher, 1977
  • Lautoconus belairensis (Pin & Leung Tack in Pin, 1989) : synonym of Conus belairensis Pin & Leung Tack in Pin, 1989
  • Lautoconus bruguieri (Kiener, 1848) : synonym of Conus bruguieri Kiener, 1848
  • Lautoconus cacao (Ferrario, 1983) : synonym of Conus cacao Ferrario, 1983
  • Lautoconus cloveri (Walls, 1978) : synonym of Conus cloveri Walls, 1978
  • Lautoconus desidiosus (A. Adams, 1853): synonym of Conus desidiosus A. Adams, 1853
  • Lautoconus dorotheae (Monnier & Limpalaër, 2010): synonym of Conus (Lautoconus) dorotheae Monnier & Limpalaër, 2010 represented as Conus dorotheae Monnier & Limpalaër, 2010
  • Lautoconus echinophilus (Petuch, 1975) : synonym of Conus echinophilus (Petuch, 1975)
  • Lautoconus guanche (Lauer, 1993) : synonym of Conus guanche Lauer, 1993
  • Lautoconus guinaicus (Hwass in Bruguière, 1792) : synonym of Conus guinaicus Hwass in Bruguière, 1792
  • Lautoconus hybridus (Kiener, 1845) : synonym of Conus hybridus Kiener, 1845
  • Lautoconus mediterraneus (Hwass in Bruguière, 1792): synonym of Conus ventricosus Gmelin, 1791
  • Lautoconus mercator (Linnaeus, 1758) : synonym of Conus mercator Linnaeus, 1758
  • Lautoconus pineaui (Pin & Leung Tack, 1989) : synonym of Conus pineaui Pin & Leung Tack, 1989
  • Lautoconus tacomae (Boyer & Pelorce, 2009) : synonym of Conus tacomae Boyer & Pelorce, 2009
  • Lautoconus taslei (Kiener, 1850) : synonym of Conus taslei Kiener, 1850
  • Lautoconus trencarti (Nolf & Verstraeten, 2008) : synonym of Conus trencarti Nolf & Verstraeten, 2008
  • Lautoconus unifasciatus (Kiener, 1850) : synonym of Conus unifasciatus Kiener, 1850
  • Lautoconus vayssierei (Pallary, 1906) : synonym of Conus vayssierei Pallary, 1906
  • Lautoconus ventricosus (Gmelin, 1791) : synonym of Conus ventricosus Gmelin, 1791

References
  1. Lautoconus Monterosato, 1923. Retrieved through: World Register of Marine Species on 07/26/11.
  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
  3. Tucker J.K. & Tenorio M.J. (2009), Systematic Classification of Recent and Fossil Conoidean Gastropods, ConchBooks, Hankenheim, Germany, 295 pp.

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.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.