Mercurian (The Shadow Out of Time)

The "bulbous vegetable entities of Mercury", as they're described, are a sapient Mercurian race. Nothing has been revealed about them besides that at some point in time, the Great Race of Yith will transfer their minds through time and space once again to inhabit the bodies of the Mercurians.

Appearances

 * The Shadow Out of Time, by H. P. Lovecraft (1936)