Subterranean spider

Subterranean spiders were a species of spider that dwelt underground.

Varieties

 * Hairy spider : A vicious spider that tended to swarm on attackers.
 * Sword spider : A large, dangerous spider with blade-like legs.

Locations
Subterranean spiders were particularly common in drow areas of the Underdark, where they dwelt in relative safety due to many drow's reverence for spiders.