MELOSINAE
Text: Elemental spirits of water, usually appearing in female forms, but which may also take the forms of fishes or snakes. They have souls, but no spiritual principle; but they may obtain the latter by entering into a union with man. (The fourth principle uniting with the fifth.) The human shape is their true form; their animal forms are assumed. They are also called Undines.
See Also: ELEMENTARIES
Source: 131