Ansonia minuta — Dwarf Slender Toad
Some other names for this species:
Minute Slender Toad
Frogs of Borneo assures me that this is a common lowland stream toad, though I saw only one in two nights full of frogs at Kubah National Park. A fully grown specimen is about an inch long.
I saw one more in the same area at Kubah the next year, so maybe that's enough to call them common?
- Inger, R. F., Stuebing, R. B., Grafe, T. U., Dehling, J. M. 2017. A Field Guide to the Frogs of Borneo, Third Edition
- Wahab, T. B., Das, I., Min, P. Y., Haas, A. 2014. A Photographic Guide to Frogs of Kubah National Park