A tiny - about 1 cm - juvenile forked-tongued frog (despite the warty skin! - as i had to realize, see comments) on the forest floor of a mountain rainforest in W-Java.Kingdom: AnimaliaPhylum: ChordataSubphylum: VertebrataClass: AmphibiaSubclass: LissamphibiaOrder: AnuraFamily: DicroglossidaeSubfamily: DicroglossinaeGenus: Limnonectes [det. "inggar.rahardjo", 2012, based on this photo]could be this one: en.wikipedia.org/wiki/Limnonectes_macrodonIndonesia, W-Java, Mt. Halimun-Salak-NP: vic. Cikaniki Research Station, ca. 1200m asl., 23.09.2010(f4320410)
Figure 10; Comparisons of Limnonectes dabanus and L. savan sp. nov. in preservative A lateral view of head of males A1 L. macrognathus (FMNH 174526) from Nakhon Si Thammarat Province, Thailand; A2 L. dabanus (MVZ 258200) with high-profiled caruncle from Ratanakiri Province, Cambodia A3 L. savan sp. nov. holotype (NCSM 76288) A4 L. dabanus (MVZ 258202) with low-profiled caruncle from Ratanakiri Province, Cambodia B lateral body view of L. savan sp. nov. illustrating flank: paratype female (NCSM 76300) above; holotype male (NCSM 76288) below C dorsoposterior views of thigh illustrating tubercles (arrows) of C1 L. savan sp. nov. holotype male (NCSM 76288) C2 L. savan sp. nov. paratype female (NCSM 76300) C3 L. dabanus male (MVZ 258200) from Ratanakiri Province, Cambodia C4 L. dabanus female (MVZ 258235) from Ratanakiri Province, Cambodia.
Figure 9; Comparisons of males of four similar, caruncle-bearing species of Limnonectes in preservative: Dorsal (above) and ventral (below) views of A L. savan sp. nov. holotype male (NCSM 76288) B L. dabanus (MVZ 258200) with high-profiled caruncle from Ratanakiri Province, Cambodia C L. dabanus (MVZ 258202) with low-profiled caruncle from Ratanakiri Province, Cambodia D L. macrognathus (FMNH 174526) from Nakhon Si Thammarat Province, Thailand E L. gyldenstolpei topotype (ZMKU AM 01143) from Lampang Province, Thailand.
Unfortunately I only got one shot, so it may not be possible to get a definite identification from this. It was found near a forest stream within Kinabalu National Park, at approximately 1585m above sea level.