Hendrickson 1950 Hyloxalus granuliventris (RES) Dendrobates "punctatus" Protherapis palmatae Nov. 21 Buenavista, 4000 ft., Meta, Colombia, S. A. Many individuals along rushing mountain stream (see water Tadpole species account for today) and along small diversion ditch bringing water from stream to farmyard at Buenavista. Near fast, fairly cool water in all cases which I noted. Took one immature with tail stub (#1588) for use in making up developmental series. Dr. Stebbins has all tadpoles and other frogs rounded in his catalogue. To see his notes for color description, also. Many individuals were calling along the creek and the ditch, but I could not approach closer than about 8 ft. and could not definitely identify the call with this frog. Just before leaving Buenavista we saw and heard two individuals calling in the farmyard. The call is a bell-like stuttering whistle, 3 notes above violin A: m-m-m-m-m-m-m (long m) The frequency of the notes is just a bit faster than I can achieve with lung control