Remoraid

Remoraid (Japanese: テッポウオ Teppouo) is a -type Pokémon introduced in Generation II.

Evolution
Remoriad evolves into Octillery when it reaches level 25. Remoraid also allows Mantyke to evolve into Mantine if one is present in a player's party when leveling up Mantyke. This evolution however, does not get rid of Remoraid.