Radula is found in
Pila species
Chiton species
Lamellidens species
Pinctada species
As we have learned
Body structure of Mollusca -
Body is covered by calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump. Mouth contains rasping organ called radula.
- wherein
A soft and spongy skin layer called mantle forms the skin. Mouth cavity is present between hump and mantle which contains feather like gills.