Music cone
| Music cone | ||||||||||||
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Case by Conus musicus |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Conus musicus | ||||||||||||
| Hwass in Bruguière , 1792 |
The music cone or the music cone shell ( Conus musicus ) is a screw from the family of the cone snails (genus Conus ), which in Indopazifik is used and from Vielborstern fed.
features
Conus musicus carries a small and light to moderately light snail shell , which in adult snails reaches 1.4 to 3 cm in length. The circumference of the body is conical or bulbous conical to broadly bellied conical, the outline in half towards the apax is weakly to clearly convex and in the other half mostly straight. The housing mouth can have a transverse rib in the middle. The shoulder is angled, only occasionally rather rounded, and is slightly to distinctly covered with tubercles. The thread is low to medium high, its outline slightly concave to slightly convex. The seam ramps of the Teleoconch are flat, with 2 to 3 to 4 increasing spiral grooves in the later passages. The circumference of the body is provided at the base with weak to distinct, granular, spirally running fine ribs, which sometimes extend to the middle or even to the shoulder.
The basic color of the housing is white to pale gray. The perimeter of the body has a gray, orange or reddish-brown spiral band on each side of the center, both of which can occasionally be obsolete or merge into a single colored area at the base. Spiral rows of brown dots and lines of varying numbers and arrangement extend from the base to the shoulder. Dark points can alternate with white lines or points. The base and basal part of the spindle are dark bluish-purple. Brown markings run between the tubercles of the shoulder over the later sewing ramps. The inside of the case mouth is dark bluish-purple, in the middle and on the shoulder mostly with a band in the basic color.
The thin, alternately translucent and smooth periostracum is light brown.
The top of the foot is white to red at both ends, similar or contrasting on the side edge areas and occasionally separated by a dark groove. The front section is sometimes marked with a black spot in the center and white dots at the corners. The area under the operculum is sometimes white. The sole of the foot is red and - with the exception of the front and rear ends - heavily littered with white dots or elongated white markings, the central axis usually a gray longitudinal line, sometimes just darker red. The rostrum is red, sometimes with white spots. The antennae are white to red with white eye stalks. The sipho is pink with red dots or elongated white axial markings, often white dots and thin brown lines and usually a red tip.
The radula teeth connected to a poison gland have a barb on the tip and a cutting edge on the opposite side. They are sawn and have a waist in the middle. A spur sits at the base.
distribution and habitat
Conus musicus is distributed in the Indo-Pacific from the coasts of Sri Lanka and the Maldives as the westernmost point to the Marshall Islands , Fiji and Ryūkyū Islands as well as on the west and east coast of Australia .
It lives in the intertidal zone, more often below it at depths of 1 to 18 m on rock ledges and reef crowns on sand with algae growth, limestone, dead corals or crevices and caves in coral reefs.
nutrition
The prey of Conus musicus consists of erranten Vielborstern particular family Nereididae and Eunicidae he with his Radulazähnen stands and using the poison out of his venom gland immobilized. On the Great Barrier Reef , 6 species, including 2 species in the eastern Indian Ocean , including Nereis trifasciata , have been identified as prey, all of which belong to the Nereididae family, while the cone snail on the Maldives and Chagos mainly ate Eunice afra in addition to various Nereids and Eunicids .
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] musicus Hwass., P. 11.
- Jerry G. Walls: Cone Shells: A Synopsis of the Living Conidae TFH Publications, Neptune (New Jersey) 1979. p. 751.
- 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
- The Conus Biodiversity Website: Conus musicus Hwass in Bruguière, 1792
- Underwater Kwajalein: Conus musicus Linnaeus, 1767
Individual evidence
- ^ RE Reichelt, Alan J. Kohn (1985): Feeding and distribution of predatory Gastropods on some Great Barrier Reef platforms. In: M. Harmelin Vivien, B. Salvat (Eds.): Proceedings of The Fifth International Coral Reef Congress, Tahiti, May 27-1 June 1985. Vol. 5, Miscellaneous Paper (A), pp. 191-196.
- ↑ Alan J. Kohn, James W. Nybakken (1975): Ecology of Conus on eastern Indian Ocean fringing reefs: diversity of species and resource utilization. Marine Biology 29, pp. 211-234.
- ^ Alan J. Kohn (1968): Microhabitats, Abundance and Food of Conus on Atoll Reefs in the Maldive and Chagos Islands. Ecology 49 (6), pp. 1046-1062.