Greene, H. 1992 May 20 (continued) After dinner we processed the new Crotalus molossus (δ, 821+60 mm, 343 g, 9 rattle segments including button) and implanted a transmitter (148.450) in him. Then drove over to the Animas Rd. (Hwy 9?) and released the Rhinocaulus and Scaphiopus that Bill had photographed. May 21 Brief rain ~0400h. It has rained every afternoon & evening we've been here, sunny and partly cloudy in the mornings - just like summer monsoon season, except not as hot. Supposedly this has been a regular monsoon storm system for climatic years, and the Hardy's cannot remember a spring here this wet. at 0815h Bill and I located C. molossus #5's signal then saw him coiled ~30 cm back in the same hole as yesterday, skin still dull and dull. At 0820h Bill found a small Hypsiglena torquata under a dead agave at a point on the road near where at 0830h we got C. molossus #9's signal from the same rat nest as yesterday. We released C. molossus #11 downslope from where he was captured yesterday, transmitter keeping. At 0900h, I walked w/in 2 m of C. atrox #1 and first heard him rattle from underneath an acacia ~ 50-75m N of yesterday's site and 150-200m W of Jeff Gee's house. We packed up, met Barney Torberlin and Tony Swall at the Portal Store for breakfast, and headed for Texas.