Greene, H. 1992 May 18 at 0815h we found Crotalus molossus #9 ♂, evidently under ground under a brush at the head of a small arroyo, ≈75m N of the road and ≈30 m ESE of yesterday's site. At 0851 h we found C. molossus ♀ #3 in a loose coil at the entrance of a hole in a small rock bluff, facing into the hole w/ dappled sun killing him. The snake is ≈1m W of yesterday's site and hasn't shed. Before lunch we implanted a transmitter in a Crotalus atrox from near Jeff Gee's house, E. of Portal (♂, 982+82 mm, 700g). At 1600 h. we located C. molossus #9's signal from a large Nestor nest 2-3 m S. of this NM's site, and now believe he was there all along. At 1620h we found C. molossus #3's signal at the same site as this NM but couldn't see the snake. Tonight Richard G. Zweifel told me this morning he found a Crotalus pricei that had been stepped on, a juvenile w/ hindquarters of a Sceloporus jarrovii in its stomach. May 19 This AM we helped Barney Torberlin check his pitfall trap grid in Artelepo Pass. Rained off and on much of the afternoon w/ frequent thunder as it has every day here - very unseasonable weather! In the afternoon we released the telemetered C. atrox at its capture site. After dinner, we road hunted almost to Animas, finding 3 Sceloporus couchi and 2 Rhincheilus decortei on Hwy 9, and a Gyalopium canum on Hwy 533. The latter thrashed from side to side in semirigid