In July 2011, scientists from Universiti Malaysia Sarawak led by Dr. Indraneil Das found and photographed three specimens in the high branches of a tree after months of night expeditions in the Gunung Penrissen range of Western Sarawak. According to Moore, the team organized its search based on what was known of similar species, searching at night along streams for a toad they thought might be found climbing trees. Dr. Das said these were "standard search techniques appropriate for amphibians in rainforest habitats," adding that they entailed "dangers and annoyances" that included heavy rainfall, leeches, and poachers.