Hendrickson 1950 Ryla labialis Nov. 15 Bogota, 8500 ft., Cundinamarca, Colombia, S.A. Another frog watched croaking 5:40 P.M. - about 6:00 P.M. had the following frequencies: in 15 seconds timing - 15 calls in 15 seconds timing - 14 calls in 60 " " - 43 calls This individual called for roughly 45-60 sec., then usually "rested" for about 15 seconds. The above 60 sec. timing included one of these "rests". I looked for eggs and tadpoles, but was unable to find either. One of the "adults" taken has what appears to be the stump of a resorbing tail; if, this is normal and not an abnormality of this individual, then this species reaches almost adult size before metamorphosis is complete. We left after dark; by this time the chorua had swelled considerably over its volume at 4:30 P.M. Occasionally among the "orthodox" calls, we heard a drawn-out, complaining sort of croaks, on a falling inflection. Whether this resulted from poor resonance due to pressure against glass stems, or whether it could possibly be a female call, we do not know. In our collection of 24 frogs, only 4 (?)