the Hutts

The Hutts were a sentient species of large gastropods[6] with short arms, wide cavernous mouths and huge eyes, who controlled a large space empire in Hutt Space. The species was said to originally hail from the planet Varl, but no planet by that name appeared on any Imperial star charts. Their adopted homeworld was Nal Hutta. Members of this species were often stereotyped as crime lords. 
In appearance, a Hutt was an immense slug-like creature that had a thick body with a long muscular tail with small arms located on the upper body.[2] The large body had a bulbous head at the top. Hutts' appendages allowed them to manipulate their environment to a limited degree. The entire base of their body served as a creeping slow foot, enabling them to slither across their environment in a manner similar to that of a slug, though some Hutts grew so large that they became immobile.