P. nebulifer ^ZBK:

ZRC 45706 (holotype), 94.8 mm SL; CMK 15447 (1 paratype), 62.3 mm SL; Laos: Houaphan province, small creek, tributary of Houai Siam, upstream of Ban Kangpabong, 20°19'36"N 104°25'1"E. CMK 15342 (1 paratype) 86.1 mm SL; LARRI uncat. (1 paratype), 75.2 mm SL; Laos: Houaphan province, unnamed forest stream about 4 km SE from Ban Houatangoua on road to Xam Tai, 20°7'59"N 104°33'39" E.