Occidozyga sumatrana (Peters, 1877)

Fig. 4H Yellow Bellied Puddle Frog

Examined specimens.

Seven adult male specimens were collected from SRF (UMTZC1507, UMTZC1561, UMTZC1562, UMTZC1610, UMTZC1629, UMTZC1631, and UMTZC1734SVL, SVL = 22-35 mm).

Identification.

Morphological characters of the specimens agreed well with the description by Davis et al. (2018) and Hong et al. (2021). Size (SVL: 22-35 mm, n = 7 males); depressed head; rounded snout; tympanum present but not visible through skin; weak supratympanic fold; tips of digits blunt and dilated to small disc; elliptical and compressed inner metatarsal tubercle, outer metatarsal tubercle absent; toes webbed and reaching discs of all toes; dorsum patterns variable from having a broad and pale vertebral stripe between eyes and shoulder (UMTZC1629) to indistinct dark marking (UMTZC1507, UMTZC1561, UMTZC1610, UMTZC1631, and UMTZC1734), dense and dark blotching, or whitish marking on snout and interorbital region (UMTZC1562).

Remarks.

All specimens were found in temporary stagnant water bodies near the Peres River at SRF, such as puddles or intermittent pools that developed after heavy rains on the forest floor and near stream areas. The species is typically observed with its body partially submerged in water with eyes exposed.