Centruroides exilicauda, the Baja California bark scorpion, is a species of bark scorpion  found in Baja California. It is closely related to the Arizona bark scorpion (Centruroides sculpturatus), but is not considered dangerous. Previously only distinguished by geographic range, the two variants were classified in 1980 as the same species. Subsequently, differences in venom toxicity were recorded, and in 2004, DNA analysis [1] showed them to be separate species. The Baja California bark scorpion is a slender, long-tailed scorpion, and although it is typically sand-colored it appears in darker colors.[2][3]