these, h. 1991 August 14 (continued) a Scirus - Crotalus molossus interaction. She noticed the squirrel pushing a little embankment of dirt, and saw it was facing a "3 ft. long" blacktail in pre-strike posture. A woman named Marge, of the SWRS kitchen staff, saw what she took to be two C. molossus mating - but Kelly questioned her and learned one rattler nushed the other, whereupon they rose entwined - thus surely male-male combat. We road-hunted to Arivaca, New Mexico and saw one each C. atrox, C. scutulatus, and C. viridis. August 15 Driving down from SWRS where I picked up Kelly, we saw a Urocyon fox cross the road in scrubland near the Forest Service entrance in Cave Creek Canyon. At 0836h we located C. molossus #3 at 75-10m ESE of the under road culvert, coiled flat in grass at the edge of a clearing, next to an Opuntia. At 0912h, as we huddled up Limestone Ridge, Kelly spotted a large (>=15cm) Scolopendra crustig at the base of an Opuntia patch among boulders - it was walking leisurely, swinging the head side to side, seemingly unaware of us. At 0957h we found C. molossus #8 at 30m west of yesterday's site, just over the S. lip of the main Limestone Ridge. He was under a dense shrub in rocks and leaves, frozen as if he had stuck or crawled out of a coil.