Editing Radula (section)

===Teeth===
The radula comprises multiple, identical (or near-enough) rows of teeth, fine, flat, or spiney out-growths; often, each tooth in a row (along with its symmetric partner) will have a unique morphology.

Each tooth can be divided into three sections: a base, a shaft, and a cusp.  In radulae that just sweep, rather than rasp, the underlying substrate, the shaft and cusp are often continuous and cannot be differentiated.<ref name="Hickman1980">{{Cite journal | jstor = 2400346 | last1 = Hickman | first1 = C. S. | title = Gastropod Radulae and the Assessment of Form in Evolutionary Paleontology | journal = Paleobiology | volume = 6 | issue = 3 | pages = 276–294 | year = 1980 | doi=10.1017/s0094837300006801| bibcode = 1980Pbio....6..276H | s2cid = 89455588 }}</ref>

The teeth often tesselate with their neighbours, and this interlocking serves to make it more difficult to remove them from the radular ribbon.<ref name="Hickman1980"/>