Clamperl

Clamperl (パールル Pearlulu) is a -Type Pokémon. It is a Basic Pokémon that can evolve into either Huntail, by trading while holding a Deepseatooth, or Gorebyss, by trading while holding a Deepseascale. Its special ability is Shell Armor. It makes a single pearl during its lifetime. The pearl is said to amplify psychic powers. Despite that it isn't psychic type

Apperence
Clamperl is a blue pokemon with a pink pearl inside of it's "mouth". Around the pearl there are little "circles" that hold up the egg.