In every mithraeum the centrepiece was a representation of Mithras killing a sacred bull, an act called the tauroctony. The image may be a relief, or free-standing, and side details may be present or omitted. The centre-piece is Mithras clothed in Anatolian costume and wearing a Phrygian cap; who is kneeling on the exhausted bull, holding it by the nostrils with his left hand, and stabbing it with his right. As he does so, he looks over his shoulder towards the figure of Sol. A dog and a snake reach up towards the blood. A scorpion seizes the bull's genitals. A raven is flying around or is sitting on the bull. One or three ears of wheat are seen coming out from the bull’s tail, sometimes from the wound. The bull was often white. The god is sitting on the bull in an unnatural way with his right leg constraining the bull's hoof and the left leg is bent and resting on the bull's back or flank. The two torch-bearers are on either side are dressed like Mithras: "Cautes" with his torch pointing up, and "Cautopates" with his torch pointing down. An image search for tauroctony will show many examples of the variations. Sometimes Cautes and Cautopates carry shepherds' crooks instead of torches."See also" </ref>