 The connection to Arima, comes from the island's Greek name Pithecussae, which derives from the Greek word for monkey, and according to Strabo, residents of the island said that "arimoi" was also the Etruscan word for monkeys.Quintus Smyrnaeus locates her cave "close on the borders of Eternal Night".Although for Hesiod Echidna was immortal and ageless, according to Apollodorus Echidna continued to prey on the unfortunate "passers-by" until she was finally killed, while she slept, by Argus Panoptes, the hundred-eyed giant who served Hera.