Table 1 Parameters of sandpapers used in feeding experiments (characterized employing Keyence VR 3100).

From: Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging

Grit number Sandpaper types
P 180—rough P 600—medium P 800—fine
Roughness, µm, Ra 21.1 5.2 3.8
Mean width, µm, RSm 195.7 28.1 22.3
Mean height of profile elements, µm, Rc 80.6 19.1 17.5