Continuing how a sheep burnt offering was carried:

Hilchos Maasei Hakarbanos 6:14

The fourth kohein carries the chest and the neck. He carries the chest in his right arm and the neck in his left, the ribs between his fingers.

Hilchos Maasei Hakarbanos 6:15

The fifth kohein carries the two sides. He carries the right side in his right arm and the left side in his left, the sides where the skin was facing out.