In the Theurgia Goetia, the second book of the Lemegeton, Dusiriel is one of the eleven chief dukes of Hydriel. Described as looking like a serpent with a virgin's face and head, Dusiriel is an Aerial Devil who may be summoned any time of the day or night. Said to be very courteous and willing to obey his summoner, he commands 1,320 servitors and is said to live in or near water, marshes, and wetlands.