Strabo Geography 3.3.6

[6] The Lusitanians are reported to be clever in laying ambushes, sharp, swift of foot, light, ¹ and easily disciplined as soldiers. The small shield they make use of is two feet in diameter, its outer surface concave, and suspended by leather thongs; it neither has rings nor handles. They have in addition ² a poignard or dagger. Their corselets are for the most part made of linen; a few have chain-coats and helmets with triple crests, but the others use helmets composed of sinews. The infantry wear greaves, each man is furnished with a number of javelins; some also use spears pointed with brass. They report that some of those who dwell near to the river Douro ³ imitate the Lacedaemonians in anointing their bodies with oil, using hot air-baths made of heated stones, bathing in cold water, and taking but one tidy and frugal meal a day. The Lusitanians are frequent in the performance of sacrifice; they examine the entrails, but without cutting them out of the body; they also examine the veins of the side, and practise augury by the touch. They likewise divine by the entrails of captive enemies, whom they first cover with a military cloak, and when stricken under the entrails by the haruspex, they draw their first auguries from the fall [of the victim]. They cut off the right hands of their prisoners, and consecrate them to the gods.