Aka : Shax, Shass or Shaz 

Shape : a stork or a pigeon with a hoarse and subtil voice 

Rank : Grand Marquee of Hell, rules 30  legions 

Magic : Must be summoned within the ritual triangle. Rob anything and bring it to the magician. Tells of things that are hidden and bring good familiars. 

Source: Goetia, Lemegeton