Amphibious Gods in America
American Indians believed that the waters of lakes, rivers, and oceans were inhabited by a group of mysterious people. They called them the "Water Indians". In the Popol Vuh, the Mayan Quiché Book of the Dawn, there are references to certain water beings. The water beings were liberators of people. They fought evil, lived in the sky, and were considered to be sages. In the Popol Vuh there is an interesting reference to fish-men that looked like men...
http://www.ufoarea.com/aas_amphibiousgods_america.html
