Pokémon #422 in the National PokéDex, a Water type Pokémon.
Its form depends on where its found.
- Shellos (West): The underside is white and its shell is pink. The shell has several small spike-like protrusions on it. On its head is a ring of pink fleshy knobs resembling flower petals that spike up.
- Shellos (East): The underside is green and its shell is blue. The shell has two flap-like protrusions. These flaps are lined in yellow. On its head are two white-tipped knobs resembling horns that extend away from its face.
It evolves into Gastrodon.
Japanese Name: Karakanushi