haruspex

A haruspex was a person trained to practise divination by the inspection of the entrails of sacrificed animals, especially the livers of sacrificed sheep and poultry, a practice called haruspicy in the Ancient Roman religion. Various ancient cultures of the Near East, such as the Babylonians, also read omens specifically from the liver, a practice also known by the Greek term hepatoscopy (also hepatomancy). The Roman concept is directly derived from Etruscan religion, as one of the three branches of the disciplina Etrusca.