The Sicelian' polytheistic worship of the ancient and native chthonic, animistic-cult deities associated with geysers known as the Palici, and/as well as the worship of the volcano-fire god by the name of Adranos, were also worshiped throughout Sicily by the Elymians and Sicanians. Their (Palici) centre of worship was originally based on three small lakes that emitted sulphurous vapors in the Palagonian plains, and as a result these twin brothers were associated with geysers and the underworld. There was also a shrine to the Palici in Palacia, where people could subject themselves or others to tests of reliability through divine judgement; passing meant that an oath could be trusted. The mythological lineage of the Palici is uncertain. According to Macrobius, the nymph Thalia gave birth to the divine twins while living underneath the Earth. They were most likely either the sons of the native fire god Adranos, or, as Polish historian Krzysztof Tomasz Witczak suggests, the Palici may derive from the old Proto-Indo-European mytheme of the divine twins. Mount Etna is named after the mythological Sicilian nymph called Aetna, who might have been the possible mother to the Palici twins. Mount Etna was also believed to have been the region where Zeus buried the Serpentine giant Typhon, and the humanoid giant Enceladus in classical mythology. The Cyclopes, giant one eyed humanoid creatures in classical Greco-Roman mythology, known as the maker of Zeus' thunderbolts, were traditionally associated with Sicily and the Aeolian Islands. The Cyclopes were said to have been assistants to the Greek blacksmith God Hephaestus, at his forge in Sicily, underneath Mount Etna, or perhaps the nearby Aeolian Islands. The Aeolian Islands, off the coast of Northwestern Sicily, were themselves named after the mythological king and keeper of the heavy winds known as Aeolus. In his Hymn to Artemis, Cyrene poet Callimachus states that the Cyclopes on the Aeolian island of Lipari, working at the anvils of Hephaestus, make the bows and arrows used by Apollo and Artemis. The Hesiodic Latin poet Ovid names three Cyclopes Brontes, Steropes and Acmonides working as forgers inside Sicilian caves. Besides Demeter (the Greek goddess of agriculture and law & order), and Persephone (the Greek personified goddess of vegetation), The Phoenician bull god Moloch (a significant deity also mentioned in the Hebrew Bible), the Phoenician moon goddess of fertility and prosperity Astarte (with her Roman equivalent being Venus), the Punic goddess Tanit, and the weather & war god Baal (which later evolved into the Carthaginian god Baal Hammon), also had centres of cultic-worship throughout Sicily. The river Anapo was viewed as the personification of the water god Anapos in Sicilian mythology. The Elymians inhabited the western parts of Sicily, while the Sicanians inhabitated the central parts, and the Sicels inhabitated the eastern parts.