Hanken James 1976 Journal Hotel Sacro, Ciudad Tehuacan, Est. Oaxaca, Mexico 7 February 8:30 AM We can from where we left our car a jeep trail continues N to service the extensive agricultural fields covering the gently rolling lower slopes, with only little vestiges of original forest. After 2-2 1/2 hours of walking (~8-9 km) we entered a wooded trail which turned out to represent the limit of clearing on the S flank. We immediately entered relatively untouched rainforest which was quite damp; leaf surfaces were not wet to the touch, but the litter layer was moist and rolling fallen logs moist and cool. We worked the forest at ~930m immediately after entering it. Bromeliads were not abundant but present and we worked several without success. We Pseudoeurycea welleri was found at the beginning of the forest at 890 m and as far up to 1200 m where we turned around. They were found commonly under and inside rotting logs, and also under bark on falling logs often several feet above the ground. We could not detect any pronounced tendency for microhabitat as we continued up the mountain. Six Thorius were found at the first locality between ~930-950m, and one other slightly higher up the mountain. Some were found under rotten logs, and others under leaf litter,