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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 .
Careoradula perelegans is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Streptaxidae. [2] [4] Careoradula perelegans is the only species in the genus Careoradula. [2] The generic name Careoradula consist of Latin word "careo", that means "lacking" and the word radula. [2]
The radula is taenioglossate, consisting of seven teeth per row: one middle tooth, flanked on each side by one lateral and two marginal teeth. The radula is used to scrape algae and detritus. Phlorotannins in the brown algae Fucus vesiculosus and Ascophyllum nodosum act as chemical defenses against L. littorea .
The rosy wolfsnail is specialized for carnivory, its buccal mass being totally contained within a beak-like rostrum that can be extended, thus allowing the toothed radula to be ejected past the mouth and into the snail's prey. The radula is enlarged and has teeth specialized into elongated cones.
Caenogastropoda can be divided into two major groups, based on the anatomy of the radula: Taenioglossa (from taenio meaning band), equivalent to the older Mesogastropoda, with typically seven teeth in each radular row. Stenoglossa (from steno meaning narrow), the Neogastropoda, with only 1–3 teeth per row.
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Radula acutiloba Steph. Radula aguirrei R.M.Schust. ex M.A.M.Renner Radula allisonii Castle Radula amentulosa Mitt. Radula amoena Herzog Radula anceps Sande Lac. Radula aneurysmalis (Hook.f. & Taylor) Gottsche, Lindenb. & Nees Radula angulata Steph. Radula anisotoma M.A.M.Renner Radula appressa Mitt. Radula aquilegia (Hook.f. & Taylor) Gottsche ...
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