LIDICKER 1958 camp (17 mi. SE Nombro de Dios). This is just 2.6 mi. N. of the jet. to Villa Guerrero. Here we set 30 traps along the limsy side of a ditch about 6 ft. deep ; 30 traps in desert area nearly which consisted mainly of clumps of beavertail & some mesquite, + 15 traps in follow field in which the veg. was ( - 1 1/2 ft. tall. Caught 1 small Bufo's around camp that evening. July 5 Catch : 1 Scaphisopus Also caught 1 more Bufo's. We noticed several large carnivore done in the beavertail area. After much effort I shot a Rinophila totteri which was quite common around camp. Bird List for Camp area : Meadowlark Duca Dove Morning Dove Curve Be. Thrasher Bennicks Wren Brown Towhee Botteris Sparrow Packed up & left shortly after noon. The state boundary is 9 mi. beyond the jet. to Villa Guerrero. We didn't see anything that looked like possible mammal habitat until about 26 mi. beyond Sombrete. This habitat stretched for about 1 mi. to just beyond an undulant. rio. 4 mi. beyond