Greene, H. 1992 August 1 (continued) at x1600h we found the big ? C. atrox that Dave raised in captivity, coiled beside a burrow in a mesquite clump. He looks dusty, pre-shed, and skinny. Walking back to the trucks Dave stepped on a dead agave that contained a wasp nest - we were chased, and I got a painful sting through a t-shirt just above my right hip. Tried the Extrags which eased the pain, but it was tender and bothersome and a x75cm welt all evening. At 1615h Barney spotted an adult ? C. atrox stretched straight and immobile in the middle of a sandy wash - didn't rattle until I walked quite close, then quickly lashed x3m up under a small bush, still rattly and in a static coil. At 1709h we found C. atrox tucked in a hole under the edge of a big Nedoma stick rest in a mesquite clump - posterior and tail are looped out and exposed to late afternoon sun, and it appears to have eaten (photos). August 2 Dave and I released Grotalus molossus ? #13 at his capture site and found C. molossus ? #9 a few dozen meters S. of yesterday's resting site under the boulder, both by x0815h (Dave took notes). At 0855h I spotted just the body and tail of C. molossus ? #3 protuding in shade from under the same boulder as last few days. At 1002h we spotted the yellow back of C. molossus ? #8 in grass, front of hole under a boulder, on top