Pokémon #423 in the National PokéDex, a dual type Water/Ground Pokémon. Its appearance depends on where it is found.
West Sea Form: The flower-like crest it had as a Shellos has now turned into horns adorning the side of its head, which point directly upwards in a crescent moon shape.
East Sea Form: It retains the horns it had as a Shellos, although now fully colored green which point at a 45 degree angle. Its underside up to the bottom of its mouth is blue, its back and the top of its head is completely green, and it has two yellow "fins" adorned on its back.
It evolves from Shellos.
Japanese Name: Tritodon