File:Murex pecten (Venus comb murex snail) 2 (15530051510).jpg
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DescriptionMurex pecten (Venus comb murex snail) 2 (15530051510).jpg |
Murex pecten Lightfoot, 1786 - Venus comb murex snail shell, apertural view (12.8 cm tall), modern (latest Holocene). Many muricid snails have highly spinose shells. The high degree of spinosity in such snails is usually considered an anti-predation feature. Spinose muricids typically have three axially-oriented rows of spines per whorl, so that each spine row is ~120º from the next. Conchologists have pointed out that such spine row distributions provide orientation stability to the snail and prevent sinking on unconsolidated, fine-grained, high-water-content sediment substrates. Another suggestion holds that well-developed spine arrays could act as traps for potential prey. Muricids are predatory gastropods. They principally prey on encrusting, conchiferous organisms (e.g., bivalves, barnacles) by boring through the shells. It's likely that the spine arrays protect the snail from predatory arthropods or fish while engaged in boring & feeding on prey. Classification: Animalia, Mollusca, Gastropoda, Neogastropoda, Muricoidea, Muricidae 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. Some info. from Morris & Clench (1975), Paul (1981), Harasewych & Alcosser (1991), and Hill (1996). |
Date | |
Source | Murex pecten (Venus comb murex 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@N05/15530051510. 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 | 15:14, 3 May 2015 | 1,476 × 2,604 (1.35 MB) | 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 | 15:04, 25 July 2007 |
Color space | Uncalibrated |
Image width | 1,476 px |
Image height | 2,604 px |
Date and time of digitizing | 11:04, 25 July 2007 |
Date metadata was last modified | 11:04, 25 July 2007 |