clamperl
Pokémon #366 in the National PokéDex, a Water type Pokémon.
Clamperl is an aquatic Pokémon that makes its home on the seafloor. Its bivalve shell is dark blue with a silver rim along the inner edges.
It may evolve into:
Huntail when traded holding a Deep Sea Tooth or
Gorebyss when traded holding a Deep Sea Scale.
Japanese Name: Perlulu