"The radula is used by both carnivorous and herbivorous molluscs to rasp fragments of food into their mouth — hence the Latin name 'radula' [which means] 'little scraper,'" said Tom White ...

These are teeth located on a snail’s “tongue,” or radula, also called a rasper, which is constantly licking the ground to scrape up and transport food into the snail’s mouth as it moves. Get a closer ...

These nudibranchs have a rough, tongue-like feeding structure called a radula. They use this to scrape their food ... It then uses an expandable hood that encircles its mouth to capture free-swimming ...