Slugerous

Slugerous (ナメクジャラス, Namekujarasu) 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, legs, a nose, and a mouth.

House of Evolution Arc
Slugerous is part of the team sent to capture Saitama. Shortly after Kamakyuri is killed, Saitama and Genos exit the apartment and Saitama buries Slugerous and Frog Man headfirst in the ground up the their waists.

Slugerous is later shown during the fight between Saitama and Beast King pulling himself out of the ground, but is then quickly killed by one of Beast King's attacks.

Supernatural Abilities
Telepathy (テレパシー, Terepashī): Slugerous is a telepath, which is shown when he says that Kamakyuri must be dead because he can't reach him with his telepathy.