User blog comment:B214/Question & Answers 5/@comment-4990614-20150825065522/@comment-3965848-20150825090606

No clue since it's never mentioned, I assume the original satans could turn from a beast form into a humanoid form. Would explain why Shalba had 2 two toes on his feet if he was a dencendent of a beast.

Leviathan, a giant sea monster

Beelzebub, a giant moth/bug-like thing

Asmodeus, some odd looking chimera thing with multiple heads maybe

Lucifer, well generically how anyone would expect the devil to be like