"Leptodactylid" froth nest Nov. 6 5 km. N Villavicca, 1400 ft., Huila, Colombia, S.A. During night work by Dr. Stebbins and myself in banana patch 5. of camp, I found a froth nest containing numerous (50+?) small tadpoles (#1507). The nest was in a clod of earth which apparently had been formed when a tuft of grass had been uprooted; it was "clotted" around roots and stones of the dead Bermuda-like grass. It was about 4" from the edge of the nearest puddle of water, and perhaps 1" above the water level. The earth of the clod, like the soil in all this part of the field, was saturated with water (or nearly so). The nest was broken wide open when I broke the clod, so I can only guess at its dimensions. I believe it was " almost circular (2" diam.), low (1/2"-3/4") - ceilinged chamber, with smooth walls. It apparently opened to the outside at two points - almost certainly at one. Later, in a search for other nests, I found 7 similar, smooth-walled chambers in