Hendrickson 1950 Bufo marinus Nov. 7 Villanueva, 1400 ft., Huila, Colombia, S. A. Heard what we assumed to be calls of this species on the evening of our arrival in town. Somewhere a short distance & of the R. R. station, several were calling. The call, to my ear, is a long, low, bubbling trill, pleasant to hear. Nov. 8 Took one on street leading to cemetery at about 7:30 P.M. Dr. Helbrin recorded the temperature in his notes. At about 10:00 P.M., took another on town plaza (2"-4" sparse growth of green annual weeds). Temp. of stool = 24.2° C. Air temp. at 6" = 24.5° C. Apparently individuals are commonly found some distance from water in relatively dry situations. Again tonight heard what we assume to be the calls of this species. Local residents, upon having the call trill called to their attention, say it is produced by the "sapo grande" that we have found. ("Sapo" is general term for toad, but used without an accompanying adjective, it apparently refers to Bufo grandisocis.)