Hanken, James 1976 Journal Hotel Quinta Chilla, Tamayuncate, San Luis Potosi, Mexico 11 July millipedes. He tells me that the cave protruded horizontally into the hillside ~20 yards and was equally broad once inside the cave mouth which was ~30' wide and 10' high. There were a couple small pools of water in addition to ~⅓-½ of the walls dripping with water. Stalagmites were abundant. From Durango we continued W to Tamayuncate stopping at a few localities to look for terrestrial salamanders. Limestone areas seem generally difficult to work as most of the potential rocks can't be turned. Also, most of the trees are stunted (presumably due to shallow soils) and there are few, if any, logs to turn. Continuing on to Tamayuncate along winding Hwy 85 through dense fog we passed the town of Teato Grande where a breeding chorus of frogs was heard as we drove by. The frogs were calling from a shallow (<6" deep) pool alongside the road and in front of some homes. We stopped to collect and were helped by some local cuckins. In a matter of minutes we had collected three Bufo, one small Hylid, and five large hylids possibly Smilisca or Phrynosus.