added by archaeologs In ancient Egyptian religion, a sacred bull of Luxor that was the incarnation of the war god Mont. Buchis was believed the principal physical manifestation (ba) or Ra and Osiris. It was represented as a white bull with black markings or by the solar disk with two tall plumes between two horns. According to legend, his hair grew in the opposite direction from that of ordinary animals and changed color every hour. Particular bulls were worshipped as Buchis and were mummified and buried with honors upon their deaths.