Muscogee Creek traditions include a Horned Serpent and a Tie-Snake, "estakwvnayv" in the Muscogee Creek language. These are sometimes interpreted as being the same creature and sometimes different—similar, but the Horned Serpent is larger than the Tie-Snake. To the Muscogee people, the Horned Serpent is a type of underwater serpent covered with iridescent, crystalline scales and a single, large crystal in its forehead. Both the scales and crystals are prized for their powers of divination. The horns, called "chitto gab-by", were used in medicine. Jackson Lewis, a Muscogee Creek informant to John R. Swanton, said, "This snake lives in the water has horns like the stag. It is not a bad snake. ... It does not harm human beings but seems to have a magnetic power over game." In stories, the Horned Serpent enjoyed eating sumac, "Rhus glabra".