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The radula (US: / ˈ r æ dʒ ʊ l ə /; pl.: radulae or radulas) [1] is an anatomical structure used by mollusks for feeding, sometimes compared to a tongue. [2] It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus .
The characteristics (shell, radula and anatomy) of the species mark this genus as simple gastropods, unassigned in the clade Caenogastropoda. Their taenioglossate radula (formula: 2+1+1+1+2) is unique among the Prosobranchia because of the sickle-shaped rachidian tooth and the thick, sinuous, sharply cusped lateral teeth.
The Drilliidae are a taxonomic family of small predatory sea snails with high-spired shells. They are classified as marine gastropod mollusks in the superfamily Conoidea. [2] This family has no subfamilies. It consists of about 30 genera and approximately 500 Recent species.
Diloma radula is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [2] Description.
Coralliophila radula is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails. [1] References
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Development of limpet teeth occurs in conveyor belt style, where teeth start growing at the back of the radula, and move toward the front of this structure as they mature. [8] The growth rate of the limpet's teeth is around 47 hours per row. [9] Fully mature teeth are located in the scraping zone, the very front of the radula.
Hydatina is a genus of sea snails, bubble snails, ... SEM images of the radula can be found at Thompson, T.E.; Bebbington, A. (1973).