Bioacoustics of Polypedates maculatus

( Fig 4O ) Specimens examined: three males (WIIAD 226, WIIAD 250, WIIAD 271), one female (WIIAD 251) and four individuals (sex undetermined; WIIAD 062, WIIAD 063, WIIAD 272, WIIAD 273). Morphological features: Males SVL 43.3–46.9 mm (n=3), female SVL 60.3 mm (n=1) and individuals (sex unknown) SVL 38.8–51.9 mm (n=4); body flattened and elongated; head longer than wide; eyes large, pupil horizontal; tympanum large and nearly 1/3 of the diameter of eye, supratympanic fold distinct; dorsum skin smooth, ventral side of body granular; tips of fingers with prominent discs, relative length of fingers I <II <IV <III; toes tips with discs, relative length of toes 1<2<3<5<4, webbing formula of toe I1–1II½–1III½–2IV1½–½V. Coloration in life : Dorsum uniform golden brown with dark brown blotches running from dorsal surface of head to rear body; a prominent dark brown streak running from tip of snout to covering tympanum and extending up to mid flank region; color of dorsal of limbs lighter than dorsum surface; limbs cross-bared with dark brown; upper lip white; yellow reticulation on brown background on posterior thigh; ventral side of body white. Bioacoustics: 20 advertisement calls from two males were analysed in this study. We recorded calls between 17:40–00:30 hours and calling sites air temperature was between 27.1°C–29.7°C. The males were recorded calling from bushes and grassland near puddles in the months of July and August during monsoon. The calls were emitted at irregular intervals. The calls had a mean duration of 132.25 ± 25.54 ms (82–171 ms) with a mean pulse rate of 60 ± 5.9 pulses/second (50–74.63 pulses/s) and mean 5.75±1.12 pulses per call (4–9 pulses/call). The mean dominant frequency was 960.40 ± 125.06 Hz (818.3–1335.10 Hz).