Hancken, James 1976 Journal Morelos, Est. Coolimila, Mexico, elev. 1900 ft. July trip to one of the guards. After crossing we drove S on Mex Hwy 57 to just S of Salina where we drove W on the road to Barrotecan and camped. For most of the afternoon we had been trailing a large storm which had evidently dropped much rain in its path. The road was often wet and large shallow pools were common on the desert adjacent to the road. While this made it inconvenient to camp (we slept in the car) it did bring out anurans, and I caught three small frogs calling in a pool beside the road by our camp. They appear to be Gastrophryne by their small size and general shape. Their call was a moderately pitched troll lasting 2-3 seconds and given every 15-30 seconds. All calling was done from the middle of small clumps of grass in water, and it was necessary to wade into water to capture them. We arose this AM at sunrise under overcast skies and drove straight to Morelos. Hopefully we will reach Cerro Potosi this afternoon