Torrent tree frog  (Litoria nannotis)

The torrent tree frog is a moderately large, robust species of Australian frog, which at first glance possesses only the typical olive-green skin characteristic of many frog species. On closer inspection, however, it can be distinguished by the extensive dark mottling found across the back and an attractive metallic blue sheen spanning the sides of the body. Additionally, the underbelly is white or cream, the armpits and the groin flesh coloured, and the throat brown. The skin on the back and underbelly has a granular surface; certain individuals possessing small warts scattered across their back. Finger and toe discs are large, with fully webbed toes but only basal webbing on the fingers (4). Males have well developed nuptial pads with small spines on their thumbs and chests so they can cling to females during breeding and avoid being swept off by the turbulent waters of their habitat. Males lack a vocal sac, and the mating call has been described as a slow growl-like sound that is difficult to hear above the sound of flowing water (5).