The Mo’o is a Hawaiian shape shifting water spirit. According to Wikipedia:
“Moʻo often take the forms of monstrous reptiles, tiny geckos, and/or humans. They were revered as ʻaumakua, and could have power over the weather and water. They were amphibious, and many fishponds in Hawaii were believed to be home to a moʻo. When a moʻo dies, its petrified body becomes part of the landscape. Most of the time the Mo’o were found to be females.”
