| Argonauta shares other characteristics with some Jurassic and Cretaceous ammonites, namely multicuspid rachidial tooth on the radula. |
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| What's more, the radula, a harpoonlike stinger that delivers the venom, can strike with enough speed and force to pierce a diver's wetsuit. |
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| Once there, the gastropods use their belt of serrated teeth, called radula, to slice the living cordgrass. |
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| In some chitons, the radula has teeth tipped with magnetite, which hardens them. |
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| The dog-whelk's radula drills into other animals such as barnacles, while the limpet's is used to rasp algae off rock surfaces. |
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| Once the prey is snared it is bitten with strong beak-like jaws and pulled into the mouth by the radula. |
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| Most mollusks use the radula to break up food, but the cone snail uses it to inject venom. |
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| Slugs feed by rasping the plant surface with a tooth-covered tongue called a radula. |
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| After a snail has taken in its food, rasping it into tiny little bits with its radula, the food disappears in the snail's gullet to be digested. |
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| The feed is crushed by the radula and impregnated by saliva which contains an active digestive enzyme. |
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| A radula is the 'tongue' of molluscs, a horny strip that is continually renewed and has teeth on its surface. |
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| It uses its tongue, called a radula, to scrape the surface of rocks as it crawls along. |
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| Dogwinkles use a drill-like serrated tongue called a radula to eat periwinkles as well as barnacles and mussels. |
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| Specifically, this mechanism is associated with the dissolution of iron stored in epithelial cells of the radula to create ferrihydrite ions. |
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| The radula primarily functions to scrape bacteria and algae off rocks, and is associated with the odontophore, a cartilaginous supporting organ. |
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| The radula is unique to the molluscs and has no equivalent in any other animal. |
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| Some feed on microscopic, filamentous algae, often using their radula as a 'rake' to comb up filaments from the sea floor. |
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| Others feed on macroscopic 'plants' such as kelp, rasping the plant surface with its radula. |
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| Cephalopods are primarily predatory, and the radula takes a secondary role to the jaws and tentacles in food acquisition. |
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| This appears to contradict the concept that the ancestral molluscan radula was mineralized. |
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| The Cirrata, which have reduced musculature and radula, indicating reduced activity and masticatory power, probably feed on bottom dwellers or small plankton. |
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| With the exception of the beak, small rod-like shells in some species and a toothed radula, they lack hard parts like the cuttlebone and guard found in cuttlefish and squid respectively. |
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| Limpet teeth and the radula have also been shown to experience greater levels of damage in CO2 acidified water. |
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| The monoplacophoran Neopilina uses its radula in the usual fashion, but its diet includes protists such as the xenophyophore Stannophyllum. |
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| The sea snails use a modified tooth called a radula, chewing down long lines of tissue in a fashion similar to mowing a lawn. |
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| Upon being fully mineralized, the teeth reposition themselves within the radula, allowing limpets to scrape off algae from rock surfaces. |
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| Fully mature teeth are located in the scraping zone, the very front of the radula. |
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| The radula is used as a 'rake', to scrape algae and detritus. |
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| Radula with well-formed rachidian, two pairs of laterals, paired pluricuspid teeth, and two pairs of marginals. |
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