Conus cedonulli
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Conus cedonulli |
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| Linnaeus , 1767 |
Conus cedonulli ( Latin cedo nulli "I never soft") is a snail from the family of cone snails (genus Conus ), which in the western Atlantic Ocean and Caribbean Sea is common. It prefers to feed on fire bristle worms .
features
Conus cedonulli has a cone-shaped snail shell , which in adult snails reaches a length of 5 to 8 cm. The circumference of the body is conical to blown out conical, the outline straight to slightly convex. The shoulder is smooth and rounded. The thread has a moderate height with a concave outline. The protoconch, measuring up to 0.85 mm, consists of about two passages. The concave seam ramps of the Teleoconch are mostly knotty; in some individuals there are a few stripes or threads. The circumference of the body has about 15 to 20 more or less granular spiral ribs that extend from the base to the center and occasionally across, but most of the surface is smooth.
The basic color of the housing is orange, brown or black with white markings or white with orange, brown or black markings, which can be in the form of large, irregular spots, irregular spiral stripes or small spots. The surface of the body is covered with spiral rows of small brown dots on white surfaces and white, often outlined and connected by dark brown lines, outlined and connected points on darker surfaces, although animals from the southern Grenadines usually have no such outlines. The rows of points are on raised, sometimes granular ribs, which protrude more strongly next to the base and are sometimes extended to the rearmost part of the body circumference. The color pattern of the body handling often continues over the shoulder and down to the last seam ramp. Some individuals, especially from the southern Grenadines, have narrow, densely packed reddish-brown growth strips on the seam ramps. The Protoconch is white, the case mouth is white to pale blue.
distribution and habitat
Conus cedonulli occurs in the western Atlantic Ocean and Caribbean Sea from Colombia to Trinidad and along the Lesser Antilles from Martinique via Grenada to Barbados and the Bahamas . It prefers sea depths of 10 to 30 m.
food
The prey of Conus cedonulli consists of Vielborstern (Polychaeta). He makes his Latin name justice by also toxic remains high, defensive and predatory fire bristle worms such as the bearded fireworm ( Hermodice carunculata ) does not recede, but - with its deadly toxic modified - as its main prey radula harpooned -Zähnen and eats . In Colombia's Caribbean waters, it is the main predator of Hermodice carunculata .
literature
- Alan J. Kohn: Conus of the Southeastern United States and Caribbean. Princeton University Press, Princeton (New Jersey) 2014. pp. 146-148.
- Danker LN Vink, Rudo von Cosel (1985): The Conus cedonulli complex: Historical review, taxonomy and biological observations. Revue suisse de zoologie t. 92 fasc. 3-4, pp. 539-544.
Web links
- David Touitou: Conus regius & Conus cedonulli feedings habits (2001). Seashell-Collector.com, 2016.
Individual evidence
- ↑ David Touitou: The cone snail (Conus cedonulli, right) attacks a sea worm (Hermodice carunculata, left) in order to eat it. In: Robert Nordsieck: Cone snails (Conidae). The living world of molluscs. Retrieved December 9, 2012.
- ↑ Hermodice carunculata - Gusanos de fuego ( Memento of May 4, 2016 in the Internet Archive ). Néstor Núñez Acevedo, Tayrona.org