I'd have to concur that it is a female Vaejovis coahuilae (good job Nathan!), and not from Central America! I hope you didn't pay too much for it because it is very common in West Texas and New Mexico!!!

ABSOLUTELY family Vaejovidae, genus Vaejovis.

It is, however, impossible to tell for sure without the true locality and specimen at hand. If you could provide an underside photo we could probably nail it down. It could be V. spinigerus from Arizona (also quite common).

If it could get cleaned up, look at the coloring on the face/carapace. If the dark areas reach the front edge of the carapace, then it is likely V. coahuilae. If the front is uncolored, except for around the sides, like dark behind the three sets of eyes (coloring looks like "horns"), then it is definitely V. spinigerus.

The large, lustrous hands and dark ridges on the hands help the ID go toward V. coahuilae.

The sting of both of these is quite painful, but not long-lasting and is harmless.

FYI, Central American bark scorpions are of the family Buthidae, genus Centruroides, and can get to 4 inches! These vaejovids mentioned here get 2 inches (V. coahuilae) to about 3.5 inches (V. spinigerus).

Neither species is found near Death Valley. Something related to V. confusus and V. waeringi occurs there. They have more slender hands and fngers, and no markings.

i have caught some of these in the death valley area of california

How about a Vaejovis coahuilae?

http://www.ub.ntnu.no/scorpion-files/v_coahuilae5.jpg

If they're really Central American, than they're outside the scope of Bugguide. Someone who knows scorpions (I don't) may be nice enough to ID them before they're frassed, though.