Yurba

Yurba - In Mandaean lore, chief of the evil genii, or chief of the powers of darkness, but acting as the servant of the powers of light.  It is said that the great Buhram (q.v.) derived his power from Yurba.  [Rf. Drower, The Mandaens of Iraq and Iran.]  (a)

Resource List - all entries are taken verbatim from the original source:

(a) "The Dictionary of Angels" by Gustav Davidson, © 1967