Slugerous

Race: Artificial Mutant
Gender: Male
Abilities: Telepathy
Level: Tiger
Affiliation: House of Evolution
Debut: Chapter 7/Episode 2

Slugerous was an artificial mutant created by Dr. Genus of the House of Evolution.

Appearance: Slugerous is a humanoid slug. He has a black spotted, very slug-like torso and head with the addition of arms and legs and a nose and mouth.

Personality: Nothing is known of Slugerous' personality due death at the hands of Beast King.

(Source: OnePunchMan Wikia)