P. fuscus:

RMNH 7555, holotype, 39.6 mm SL; Borneo: upper Mahakam. ZRC 46144 (18) 34.0-42.6 mm SL; Borneo: Sarawak, Sungai Sebiris, 13.8 km after Kg. Pueh turnoff towards Lundu on Sematan-Lundu road, 1°41'32.0"N 109°47'0.8"E.