During the Xanth sequence by Piers Anthony, the Naga can be a race of human-headed serpents that could change in between fully human and serpent varieties, like any species and dimension of snake. Antaboga, the earth serpent in Javanese and Balinese mythology of Indonesia, who produced the earth turtle https://mylessfqbn.tribunablog.com/the-smart-trick-of-23naga-that-nobody-is-discussing-44177919