Unidentified Squid-like Species (Ben 10)

This Unidentified Squid-like Species are either humanoid with tentacles or squid-like.

Anatomy
Their body is massive with many tentacles. They have only one eye. Their tentacles are similar to hair and a mustache. Their bodies have several tentacles and dark spots.

At younger age, they are completely different. They have 4 tentacles and their brain is covered by jelly-like matter.

It is shown that they can keep their squid form as an adult. Those adults have a beak. They don't have eyes but instead they use eyes prostheses.

Powers/Abilities
This species is immune to poisonous gases.