THE FOUR SONS OF HORUS:
Horus the Elder has four sons by an unnamed goddess, and it
is their likenesses that appear on the lids of the canopic
jars used to contain the internal organs removed from a body
during the process of mummification.
HAPI is a baboon and protects
the lungs. He is guarded by Nepthys. He is one of the four
sons of Horus.