More on Alfar from Infoplease:

• Alfar - Alfar The good and bad genii of the Scandinavians. Source: Dictionary of Phrase and Fable, E. ...
• Dock-Alfar - Dock-Alfar The dark Alfs whose abode is underground. They are in appearance blacker than pitch. ...
• Liosalfar - Liosalfar The light Alfs who dwell in the city Alf-heim. They are whiter than the sun. (See ...
• Dictionary of Phrase and Fable: D - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "D"
• Dictionary of Phrase and Fable: A - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "A"