Is there a Japanese word or phrase for half-human, half-snake?


I am looking for a Japanese term that would describe a half human, half snake
creature like the Medusa from the original Clash of the Titans. There are
yokai, that are similar, but do not match what I am looking for. I'm leaning
towards using 大蛇人間 orochi ningen or daija ningen, but I'm not sure if that
would be grammatically correct.

