Shellder

Shellder appeared in 1996 TV series called Pokémon Red & Green. Shellder is a Bivalve Pokémon. Shellder shells are so tough and sturdy that they've been used to make shields in the past. If the Pokémon would just pull its tongue in, nothing could ever get to it.

Shellder is protected by its two large shells. Its large tongue is always kept hanging out. It has two large eyes inside the shell.