Lickitung

Lickitung is a very rare Normal-type Pokémon from Kanto region. It doesn't evolve into nor from any other Pokémon.

Pokédex description
Licking Pokémon

''Whenever Lickitung comes across something new, it will unfailingly give it a lick. It does so because it memorizes things by texture and by taste. It is somewhat put off by sour things.''

Evolution family
Lickitung is the part of a one-member family.

Trivia

 * Since Generation IV of core series games Lickitung evolves into Lickilicky, but in Pokémon GO it's currently not possible.