Appearance
A bivalve mollusk inside a spiky blue-violet shell. Two round white eyes and a long red tongue stick out even when the shell is shut.

#090
Bivalve Pokémon
Shellder is a Water-type Pokémon, No. 090 in the National Pokédex, introduced in Generation 1 (Kanto region).
« Its hard shell repels any kind of attack. It is vulnerable only when its shell is open. »
A bivalve mollusk inside a spiky blue-violet shell. Two round white eyes and a long red tongue stick out even when the shell is shut.
It burrows into sand to sleep and lures prey with its tongue. Clamped to a Slowpoke, the pair becomes Slowbro or Slowking, including the Galarian forms.
Jessie caught one on Seafoam Island. It bit a Slowpoke’s tail, the Pokémon became a Slowbro, and Shellder left Team Rocket.
The English name may blend shell and shelter. Shellder suggests a clam, its tongue standing in for a foot, and its swim recalls scallops.