Canopic jars were used to hold the internal organs taken out of a body when it was mummified. Each organ was protected by one of the four sons of Horus. The four sons of Horus were shown as a human, a jackal, a baboon and a hawk. The lids of canopic jars were carved to look like the heads of these four gods.
This canopic jar represents the jackal god, Duamutef, who protects the stomach.