Fly dirt cone
| Fly dirt cone | ||||||||||||
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Housing of Conus stercusmuscarum |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Conus stercusmuscarum | ||||||||||||
| Linnaeus , 1758 |
The dead bugs cone or dead bugs-cone snail ( Conus stercusmuscarum ) is a snail from the family of cone snails (genus Conus ), which in the western Pacific Ocean is widespread and fish eats.
features
Conus stercusmuscarum has a medium-sized, moderately firm to firm snail shell , which in adult snails reaches 4 to 6.5 cm in length. The circumference of the body is usually cone-like cylindrical to almost completely cylindrical or slightly ovoid, the outline is slightly convex. The case has a pronounced fasciole. The shoulder is sharply angled. The thread is low to medium high, its outline straight to slightly convex. The multi-threaded protoconch has a maximum diameter of 0.6 mm. The seam ramps of the Teleoconch are flat in the early passages and concave in the later passages with 2 to 3 to 4 increasing spiral grooves. The first 3 whorls of the teleoconch are covered with weak tubercles. The circumference of the body is covered with wide, spiraling ribs that are conspicuous at the base and declining on the opposite side.
The basic color of the housing is white to pale gray. Spiral rows of irregular, alternating blackish-brown points and white lines or bars run over the body. Dark points are grouped together like patches and form 2 interrupted spiral bands on both sides of the middle. The whorls of the protoconch are pink. The seam ramps of the Teleoconch are provided with blackish-brown patterns along the inner and outer edges, some of which are connected across the ramps. The inside of the case mouth is orange.
The thin, translucent, velvety smooth periostracum is yellowish olive in color.
The top of the foot has a large, crown-shaped black zone in front, which is set off from the light brown front edge by two white spots on the side. The edge area is cream-colored with ray-like black markings that crowd tightly at the rear end. The central zone is white with black and brown spots, on the edge with a black line. The sole of the foot is white with brown spots or horizontal stripes. The rostrum is cream-colored at the top and striped brown towards the base. The antennae are white with black tips. The sipho is white, dorsally behind the tip with light brown spots and proximally with dark brown spots.
The radula teeth, which are connected to a poison gland, have a barb on the tip and a second barb on the opposite side as well as a backward-facing third barb that ends in a curved tip. There is neither serration nor spur.
distribution and habitat
Conus stercusmuscarum is widespread in the western Pacific Ocean , off Fiji , the Marshall Islands , Papua New Guinea , the Solomon Islands , Indonesia , the Philippines , Taiwan , Japan and Australia ( Northern Territory , Queensland ). It lives in the intertidal zone and a little below on sand and under corals.
Development cycle
Like all cone snails, Conus stercusmuscarum is sexually separate and the male mates with the female with his penis . The eggs in the egg capsules are about 235 to 240 µm in size, from which it is concluded that the Veliger larvae swim freely for at least 20 days before they sink down and metamorphose into crawling snails .
nutrition
Conus stercusmuscarum is nocturnal and hunts fish. He has been spotted in tide pools chasing the fish trapped in them.
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] stercusmuscarum Linn., P. 40.
- Jerry G. Walls: Cone Shells: A Synopsis of the Living Conidae TFH Publications, Neptune (New Jersey) 1979. p. 864.
- 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 stercusmuscarum Linnaeus, 1758
- Underwater Kwajalein: Conus stercusmuscarum Linnaeus, 1758
Individual evidence
- ↑ Baldomero M. Olivera, Alexander Fedosov, Julita S. Imperial, Yuri Kantor: Physiology of Envenomation by Conoidean Gastropods. In: Saber Saleuddin, Spencer Mukai: Physiology of Molluscs: A Collection of Selected Reviews, Two-Volume Set: Volume 1. Apple Academic Press, CRC Press, Boca Raton 2017. pp. 153–188, here 167.