Consists of a head , a visceral hump (inside the shell), and a muscular foot .

Features eyes and one or two pairs of tentacles (sensory organs).

Provides protection; can be coiled (right or left-handed) or reduced (as in slugs). 📂 Slide 3: Internal Anatomy

Includes a radula (a "grater" with chitinous teeth) to scrape food. Respiration: Aquatic species: Gills . Terrestrial species: A lung (a modified mantle cavity).

Most terrestrial snails (e.g., Grape Snails).