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  2. Radula - Wikipedia

    en.wikipedia.org/wiki/Radula

    A typical radula comprises a number of bilaterally-symmetrical self-similar rows of teeth rooted in a radular membrane in the floor of their mouth cavity. Some species have teeth that bend with the membrane as it moves over the odontophore, whereas in other species, the teeth are firmly rooted in place, and the entire radular structure moves as one entity.

  3. Odontophore - Wikipedia

    en.wikipedia.org/wiki/Odontophore

    Muscles that control the radula are shown in brown. The surface of the radula ribbon, with numerous teeth, is shown as a zig-zag line. The odontophore is part of the feeding mechanism in molluscs. It is the cartilage which underlies and supports the radula, a ribbon of teeth. [1] The radula is found in every class of molluscs except for the ...

  4. Haplotrematidae - Wikipedia

    en.wikipedia.org/wiki/Haplotrematidae

    They have a number of anatomical peculiarities. The structure of the radula of these snails (their "teeth") is unusual. Essentially, haplotrematids have fewer cusps than most snails, but they are considerably elongated, suitable for the predatory life they follow.

  5. Atlanta (gastropod) - Wikipedia

    en.wikipedia.org/wiki/Atlanta_(gastropod)

    The radula is typically taenioglossate with one central (rachidian) tooth, with on each side one lateral tooth and two marginal teeth. In 13 species the number of tooth rows increases during growth (Type I), while in 8 species the radula has a limited number of tooth rows (Type II).

  6. Pleurotomariidae - Wikipedia

    en.wikipedia.org/wiki/Pleurotomariidae

    The long radula has a long, narrow rhachidian tooth. It is lanceolate with its tip narrowand recurved. There are 26 laterals with the outer 5 without cusps. The inner ones are larger, with wide cusps and narrower bases. The outside of the laterals consists of 2 rows of uncini (the numerous small teeth-like or hook-like structures).

  7. Calliostomatinae - Wikipedia

    en.wikipedia.org/wiki/Calliostomatinae

    The radula has the rhachidian and 4 to 5 lateral teeth with irregularly oval body, and rather long, pointed cusps, their outer edges serrate. The inner marginal teeth are enlarged. The pseudo-proboscis of the animal is well developed [2] [3]

  8. Cymbula adansonii - Wikipedia

    en.wikipedia.org/wiki/Cymbula_adansonii

    Its teeth are small, mineralized, and arranged in a V-like form. Cymbula adansonii has a small rachidian tooth, which is the middle row of teeth in a gastropod’s set of radula. [6] It has a pluricuspid tooth in its radula, meaning it has several sets of cusps on one tooth. The cusps are composed of the mineral goethite and the gemstone opal.

  9. Turrid - Wikipedia

    en.wikipedia.org/wiki/Turrid

    The radula, when present, has two or three teeth in a row. It lacks lateral teeth and the marginal teeth are of the wishbone or duplex type. The teeth with a duplex form are not shaped from two distinct elements but grow from a flat plate, by thickening at the edges of the teeth and elevation of the rear edge from the membrane.