Bael

The First Principal Spirit is a King ruling in the East, called Bael. He maketh thee to go Invisible. He ruleth over 66 Legions of Infernal Spirits. He appeareth in divers shapes, sometimes like a Cat, sometimes like a Toad, and sometimes like a Man, and sometimes all these forms at once. He speaketh hoarsely. This is his character which is used to be worn as a Lamen before him who calleth him forth, or else he will not do thee homage.

As printed in Mathers’ Lesser Key of Solomon, page 22. The text above is that page’s, not a paraphrase of it.