Two views of a radula (broken during extraction) from 16 mm long animal.
As on chitons generally, broad radula, about half length of body, bearing extremely strong teeth of chitin mineralized with magnetite; hardest material made by any living organism (Botelho, 2013). Teeth magnetic; adhere to iron. Most teeth on L. cinerea are colourless or yellow/orange, except two major laterals in each row which are pale when formed at rear of radula, darkening to black and hardening with magnetite as moved forwards.
North Yorkshire. September 2014. (leg. Paula Lightfoot).

KEY ID FEATURES and similar species at: 01 Lepidochitona cinerea