Rana graminea
Large odorous frog, Odorrana graminea, is a species of frog in the Ranidae family that is found in Hainan and Fujian provinces in China and in northern Vietnam; its actual distribution may well be wider. The species occurs near to fast-flowing rivers and streams in montane (sub-)tropical forests.
O. graminea can produce ultrasonic calls. This is very rare among non-mammalian vertebrates, but has been shown for concave-eared torrent frog Odorrana tormota. However, it does not have recessed ears, a feature believed to be important for ultrasonic hearing in O. tormota. Exactly how O. graminea detects ultrasound remains to be determined.