Four-Ridged Toad, Ingerophrynus quadriporcatus (Boulenger, 1887)

A typical costal peat swamp species here in south Sarawak (Borneo). It is found in Indonesia, Malaysia, and Singapore, the maxiumum-size ranges up to 43mm (males) and 63mm (females). I’ve found this male on a plant, the Iban called “remudang”.