Conus striolatus
| Conus striolatus | ||||||||||||
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Enclosure of Conus striolatus |
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| Scientific name | ||||||||||||
| Conus striolatus | ||||||||||||
| Kiener , 1848 |
Conus striolatus is the species name of a screw from the family of the cone snails (genus Conus ) which in the middle Indopazifik is distributed and fed fish .
features
Conus striolatus carries a moderately small to medium-sized and moderately firm snail shell , which in adult snails reaches 2.5 to 4 cm in length. The body is usually bulbous, conical to egg-shaped, the outline is alternately convex. The shoulder is angled to almost rounded. The thread is medium high, its outline straight to slightly convex. The Protoconch is multi-threaded and measures a maximum of 0.7 mm. The seam ramps of the Teleoconch are flat to concave with 2 to 4 to 6 increasing spiral grooves. The base of the body is covered with ribs that run in a spiral at wide intervals.
The basic color of the case is pale gray to pale dark yellow. The area around the body is drawn in olive or brown, axially aligned cloud patterns, highlighted by adjacent blue-gray background clouds, which merge on either side of the center to form a broken or continuous spiral band. Spiral rows of alternating brown to black and white dots and dashes extend from the base to the shoulder. In some specimens, the cloud patterns on the body are missing. The whorls of the Protoconch are pink to orange. The late seam ramps are marked with dark yellow to olive colored radial stripes and spots. The inside of the case mouth is white to bluish-white.
The top of the foot is beige in the middle with dark yellow radial stripes. A black dotted line in front of the edge merges into a conspicuous saddle-shaped to irregular black spot next to the front edge. The edge area is either alternately black and white or alternating yellow-brown to dark orange, with white spots sometimes appearing next to the front corners. The sole of the foot is gray to yellow-brown with fewer dark yellow stripes than on the upper side. The rostrum is yellow-brown to pale orange, occasionally dorsally with brown spots. The antennae are white to yellow-brown, sometimes with a brown tip, the sipho white or dark yellow, dorsolaterally with dark brown spots and with a yellow-brown to pale orange tip.
distribution and habitat
Conus striolatus is distributed in the central Indo-Pacific from the coast of western Thailand via Indonesia to the Philippines , Taiwan and Australia ( Queensland ), probably also in the Seychelles . It lives in the intertidal zone and a little below on muddy sand.
Development cycle
Like all cone snails, Conus striolatus is sexually separate and the male mates with the female with his penis . The female lays numerous egg capsules. The eggs inside have a diameter of around 224 µm, from which it is concluded that the Veliger larvae swim freely for at least 21 days before they sink down and metamorphose into crawling snails .
nutrition
Conus striolatus eats fish that it harpooned with its poisonous radula teeth .
literature
- Dieter Röckel, Werner Korn, Alan J. Kohn: Manual of the Living Conidae Vol. 1: Indo-Pacific Region . Verlag Christa Hemmen, Wiesbaden 1995. The texts on the individual cone snail species of the Indo-Pacific are published on The Conus Biodiversity website with the permission of the authors (see web links).
Web links
Individual evidence
- ↑ Baldomero M. Olivera, Jon Seger, Martin P. Horvath, Alexander E. Fedosov: Prey-Capture Strategies of Fish-Hunting Cone Snails: Behavior, Neurobiology and Evolution. In: Brain, behavior and evolution. Volume 86, number 1, September 2015, pp. 58-74, doi : 10.1159 / 000438449 , PMID 26397110 , PMC 4621268 (free full text) (review).