Anubis is the Greek name of the ancient jackal-headed god of the dead in Egyptian mythology, the hieroglyphic version of which is written more precisely Anpu (also Anupu, Anbu, Wip, Ienpw, Inepu, Yinepu , Inpu or Inpw). It is also known as Sekhem Em Pet. Prayers to Anubis have been found engraved on the oldest tombs in Egypt; indeed, the Unas text (line 70) associates it with the Eye of Horus. He serves as both a guide to the deceased and a guardian of the dead. Originally, in the Ogdoad system, he was the god of the underworld. He was said to have a wife, Anput (who was really just his feminine aspect, her name being his with an additional feminine suffix: t), who was depicted in exactly the same way, although feminine. He is also listed to have married the female form of Neheb Kau, Nehebka and Kebauet. Kebauet, the goddess of cold water, is also listed as his daughter in some places. His father was originally Ra in many papyri found in the pyramids. (Anubis is the fourth son of Ra.) But later his father was said to be Osiris, because he was the god of the dead, and his mother was Ra. it is said to be Nephthys. Anubis was identified as the father of Kebechet, the goddess of purification of the body's organs which had to be placed in canopic jars during mummification. Anubis was the guardian of the dead, greeting the souls of the Underworld and protecting them during their journey. It was he who deemed the deceased worthy of becoming a star. Ancient Egyptian texts say that Anubis walked silently through the shadows of life and death and hid in dark places. He was vigilant day and night. He also compared the hearts of the dead to the feather symbol of Maat, the goddess of truth. One of the reasons the ancient Egyptians took so much care in preserving their dead with fragrant herbs was that it was believed that Anubis would inspect each person with his sharp dog nose. Only if they smelled pure would he allow them to enter the realm of the dead. Anubis was depicted as a man with the head of a jackal, or as a jackal wearing ribbons and holding a flagellum in the crook of his arm. Some believe he was not depicted as a jackal but rather as a dog, fox, wolf or hybrid..