A Sicilian giant, a son of Gaea. He had many arms and a hundred vipers for hair. He crushed unwary travelers beneath rocks and ate them. When Dionysus entered the district, Alpos attacked him using whole trees as weapons. The god hurled his thyrsus, and it hit Alpos in the throat. Mortally wounded, the giant fell into the sea.
- Grimal, Pierre. (1990). A Concise Dictionary of Classical Mythology. Oxford: Basil Blackwell, Ltd.
- Nonnus. Dionysiaca xxv, 238; xlv, 174.