A slith is an animal-hybrid form troll high priests and prophets can take when drawing power from the great serpentloa gods Hethiss and Sseratus. It is thus not a proper creature race.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
The name "Slith" is taken from the game files, as no other name is known.