Pelophryne murudensis is endemic to Borneo and exclusively known from Gunung Murud, from where it has been described recently (Das 2008). Due to its limited range, it could be threatened.

Adult males measure approx. 25 mm snout-vent length. The digit tips are swollen but not dilated. Finger I is without a free phalange; webbing on Toe V goes to tip. Subarticular tubercles are distinct. the skin is distinctly tuberculate. The coloration is dark brown. A lighter band, with darker blotches in it, runs from snout to hindlimb with a notable constriction at the shoulders. 

Only males of this species are known, all collected from montane forests, from edges of forest trails. They were found calling from leaves, 0.05 to 3 m above substrate at night. The call is a continuous trill. 

The larval stages of this Pelophryne remain unknown.

(Photos by L. Fehlandt were originally posted at iNaturalist under a creative commons license)