File:Conus gloriamaris (glory-of-the-seas cone snail) 2 (15712964191).jpg
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DescriptionConus gloriamaris (glory-of-the-seas cone snail) 2 (15712964191).jpg |
Conus gloriamaris Chemnitz, 1777 - glory-of-the-seas cone snail shell, apertural view (7.8 cm tall), modern (latest Holocene). The apertural edge has not been filed (unlike many snail shells in the retail market) and the protoconch is present. The conid gastropods (cone shells) are fascinating marine snails for a couple reasons - they have attractively-shaped, colorful shells and they are killers. The conids are predatory, as are many other marine snails, but they take down their prey in an unusual fashion. The radula of most snails is a mineralized or heavily sclerotized mass of small teeth that scrapes across a substrate during feeding. Conid snails have a toxoglossate radula - one that has been evolutionarily modified into tiny, unattached, toxin-bearing, harpoon-like darts (see photo - science.naturkundemuseum-bw.de/files/images/niederhofer_2...) that can be fired at prey. Each dart is an individual tooth. The nickname "killer snails" is well deserved (even people have been killed). Some species have incredibly powerful toxins, while in other species the toxin has little effect on humans. The conid shell shown here is one of the most famous rare seashells in history - Conus gloriamaris, the glory-of-the-seas cone. Conus gloriamaris (a.k.a. Conus (Regiconus) gloriamaris; a.k.a. Cylindrus gloriamaris; a.k.a. Conus (Cylindrus) gloriamaris; a.k.a. Cylindrus (Regiconus) gloriamaris) is a modern, tropical marine gastropod. The hard shell, or conch, has a distinctively elongated, gently tapering shape and a more sharply tapered top. This species’ shell surface coloration consists of a medium to dark brown colored “tent” pattern on a pale creamy yellow background (many conid gastropod shells have broadly similar tent patterns). Individual tents vary in size. Conus gloriamaris was first named & described by Johann Chemnitz in 1777. Shell collectors treasured specimens of this species, which remained very rare from the time of its original description up to the late 1960s. Conus gloriamaris is not an abundant species, but shells are now available in the retail market. Classification: Animalia, Mollusca, Gatropoda, Neogastropoda, Conoidea, Conidae Natural distribution: intertidal to <100 meters depth, western Pacific Basin. The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. |
Date | |
Source | Conus gloriamaris (glory-of-the-seas cone snail) 2 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15712964191. It was reviewed on 3 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
3 May 2015
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current | 15:13, 3 May 2015 | 988 × 2,677 (629 KB) | Natuur12 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 01:07, 5 November 2014 |
Color space | Uncalibrated |
Image width | 988 px |
Image height | 2,677 px |
Date and time of digitizing | 19:00, 27 April 2007 |
Date metadata was last modified | 20:07, 4 November 2014 |
IIM version | 2 |