Butterfly cone
| Butterfly cone | ||||||||||||
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Housing from Conus pulcher |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Conus pulcher | ||||||||||||
| Lightfoot , 1786 |
The butterfly cone or the butterfly cone snail ( Conus pulcher , "beautiful cone", synonyms Conus papilionaceus , "butterfly cone" and Conus prometheus , both Hwass in Bruguière , 1792 ) is a snail from the family of cone snails (genus Conus ), which in the eastern Atlantic Ocean is common on the coast of West Africa. It is considered the largest recent species of cone snail on earth.
features
Conus pulcher has a very large, often light snail shell , which in adult snails can be over 25 cm long, although usually only 10 to 15 cm long. The outline of the conical body is straight. The grooved thread is flat to medium high with a slightly raised to sharply pointed apex and flat to slightly concave circumferences and fine axial stripes as well as weak spiral threads. The mouth of the case is narrow and slightly wider at the base than at the shoulder, its outer lip not enlarged, strong and smoothly curved in the middle. With the exception of growth strips, the surface of the body is smooth. The surface of the case is white to cream colored and decorated with numerous rows of light to dark chestnut brown short lines and dots. The inside of the case mouth is white, but the brown spots on the outside can sometimes show through.
distribution and habitat
Conus pulcher is widespread in the eastern Atlantic Ocean around Madeira and the Canary Islands as well as on the entire coast of West Africa from Western Sahara to Angola . It lives in the intertidal zone and a little below it to depths of below 50 m on both soft, sandy and hard surfaces.
nutrition
The feeding behavior and prey of Conus pulcher have not yet been directly investigated. When his food (2016) snails are given in JM Poutiers, but other types of West African subgenus Kalloconus so Conus ateralbus , eat polychaete (Polychaeta).
literature
- George Washington Tryon: Manual of Conchology, structural and systematic, with illustrations of the species , vol. VI; Academy of Natural Sciences, Philadelphia 1884. C [onus] prometheus Hwass., P. 15.
- Alan J. Kohn: A chronological taxonomy of Conus, 1758-1840. Smithsonian Institute Press, Washington 1992. pp. 36, 93.
- Marcel Pin, KD Leung Tack (1995): I coni del Senegal. Annuario 1995 . La Conchiglia 277, p. 6
- JM Poutiers: Conidae, Conus pulcher (Lightfoot, 1786). In: JM Poutiers: Gastropods . In: Kent E. Carpenter, Nicoletta de Angelis (Eds.): FAO Species identification guide for fishery purposes. The living marine resources of the Eastern Central Atlantic. Volume 2: Bivalves, gastropods, hagfishes, sharks, batoid fished and chimaeras. Food and Agriculture Organization of the United Nations, Rome, 2016. pp. 907–1115, here p. 1110.
Web links
- M. Le Béon Roger: Cônes du Senegal. Seashell-Collector.com, 2001-2005.
Individual evidence
- ^ Jorge do Livramento Brito Neves: Analysis of Venom in Cape Verde Cone Snails. PhD thesis, Porto 2016.
- ↑ N. Puillandre, TF Duda, C. Meyer, BM Olivera, P. Bouchet (2015): One, four or 100 genera? A new classification of the cone snails. Journal of Molluscan Studies 81, pp. 1-23.