Kerndtner 1950 Caiman Nov. 22 Villavicencio, 1600 ft., Meta, Colombia, S.A. at rest, with only head showing, beside the mass of debris about 1'1/2-2' out from the higher cut bank. When snared, it repeatedly gave a distress call, and continued to give the call for a time when stimulated: " unk unk unk unk Frequency of calling estimated at about 3 every 2-3 seconds, each call lasting about '1/3 sec. Call began about one octave plus 2 or 3 notes above violin G, and ended on about violin g. syllabified, it might be written "oh" instead of "unk". Later in evening, shot the other two animals in the pool, but could not recover either of them. At about 10:20 P.M., about '1/2 mile down the creek in another fairly large pool, shot another animal about 5" snout-to-eyes, but lost it, too. At about 10:30 saw another small individual in an inaccessible spot under a cut bank in another pool, but did not try to collect it. See Dr. Stebbins notes for color description.