Nordvicson 1950 Leptodactylus "procerus" Nov. 8 Villavieja, 1400 ft., Huila, Colombia, S.A. Took one specimen hopping across ground some distance from water, at same place we collected Huila crepitans (see species account, this date). When first seen, out of the corner of my eye, it was hopping so fast (across rather bare soil & leaves) that I thought it was a rodent running. This very pronounced ability to get about rapidly was also noted on specimen #1502, purchased from a boy in town at an earlier date. At that time, it escaped while I was examining it (in a store on the "main" street). It went out of my hand, out of the store, across the street in what seemed a flash, disappearing thru a doorway to a patio opposite the store. A troop of small boys were after it the instant it escaped my hand. Crossing the street it moved fast enough to keep well ahead of them all. This frog is beyond doubt the fastest-moving animal I have encountered to date.