Gresert, H. 1990 August 16 ♀ C. molossus #5 rattle for an instant at my feet, (continued) just as the radio indicated I was very close. She is coiled under a low acacia ≥30m E of yesterday's site, next to a clear spot of ground and on the W edge of an arroyo. At 1056 h we found ♂ C. molossus #6 on the E side of the next arroyo E. of the one #5 is above, thus ≥100 m E. of yester- day's site. He's in an open coil in dappled sun, under a nearly leafless 1m high acacia. No reaction as we walked softly around him. Saw a Eunotia sp. on a barren ledge across the arroyo from him. At 1126 h we found C. molossus ♂ #1 stretched out on the slope in open, ≈100 m downhill and slightly SE of yesterday – he froze as we approached then crawled under a 1m acacia, gave one brief rattle click, and coiled. At ≈1200h we met Jürgen Schumacher, Elliott Jacobson, and Tom Moise at the Portal Garbage dump by chance, and learned they had just photographed combat and copulation among 3 C. molossus at Granite Gap, so with Jürgen as guide we went arrived there ≈1230h. Granite Gap, 18.5 mi N. Rodeo, Hidalgo Co., New Mexico Tom Moise (Cal Poly Pomona), Elliott R. Jacobson, and Jürgen Schumacher (the latter two Box J-126, College of Veterinary Medicine, University of Florida, Gainesville, Florida 32610) arrived here ≈1030h, at a site on the south side of the pass, west side of