"Bufo 'granulosus' Hardwicke 1950 Oct. 18 Villanueva, 1400 ft., Huila, Colombia, S.A. Several boys, including Paulino, took a number of specimens for me from the mud banks of the small stream flowing through town. They were sitting in exposed situations on the bare mud. Their trilling had been heard since dawn. Oct. 19 5 km. N Villanueva, 1400 ft., Huila, Colombia, S.A. I took one specimen from the higher ground of the banana patch about 125 yds. S of camp. Calls, apparently of this species, could be heard up and down the quebrada. Oct. 21 Dr. Stebbins and I walked about 1/8-1/4 mile down the quebrada S of camp (after dark). We set out to definitely connect the trills heard with the animal producing them, and had considerable difficulty succeeded in proving to our satisfaction that this species was responsible. The apparent wariness of the animals was almost unswervy; long, perfectly silent vigils were held before the calls were heard at close range and the animals (with vocal sac extended) could be spotlighted. Both animals definitely