Spitting crawler

A spitting crawler was a lizard found in the Underdark.

It resembled the surface-dwelling skink. Lithe of body, these creatures possessed frog-like toes on their feet, but it was their toothed bite that caused travelers in the Underdark the most concern. The bite itself was accompanied by an acidic discharge, which gave the spitting crawler its name. Against metal, the acid burned an ever-widening hole, potentially doing as much damage to a suit of armor as might a rust monster. Spitting crawlers could not be stunned or affected by charm, sleep, or hold spells.

Occasionally, these unusual beasts served as familiars for wizards, particularly drow wizards.