Fig. 3
Crepipatella dilatata (males only). Radular activity during the tidal cycle in autumn (May, extrusions h−1; mean ± SD; n = 14 animals), winter (August, extrusions h−1; mean ± SD; n = 14 animals), spring (November, extrusions h−1; mean ± SD; n = 14 animals). a, d, g Removing the mucous ball from the food pouch; b, e, h extracting the mucous cord from the neck canal and transferring it to the mouth; c, f, i rasping the substrate