Stygian

Stygians are the demonic offspring of the Dreadspawn Maw. They resemble collosal versions of undead minions. It is currently not known whether most types of Stygians are fleshy creatures or not.

Trivia
"Stygian" is a latin adjective derived from Greek "Styx", which is the name of the river which forms the boundary around the Underworld of Greek mythology, Hades.