This adult male rhacophorid frog was observed at night around the Agumbe Rainforest Research Station (ARRS) during a month-long herpetologcal survey of the Western Ghats in southwest India.
The blue-eyed bush frog (Philautus neelanethrus) is a small, distinctive frog which gains its common name from the bright blue ring running around the edge of its protruding, golden eyes. Its scientific name, neelanthrus, means ‘blue eyes’ in Sanskrit, a historical local dialect (2).
The skin of the blue-eyed bush frog varies between yellow and cream and there are brown dots and blotches on the upperside of the body, indicating areas of granulation which can differ in intensity between individuals. The skin on the underside of the body has round, white blotches and is also granulated. The skin on the wide head of the blue-eyed bush frog features circular brown spots, and the snout is pointed and protrudes forward beyond the mouth (2).
The colouration of the male blue-eyed bush frog becomes more yellow and vivid during the breeding season. The female blue-eyed bush frog is likely to be slightly larger than the male (2).
Vocalisations are made by the blue-eyed bush frog during the breeding season, using the unpigmented vocal sac in the throat. Calls usually begin as a shrill ‘treek’ and are followed by a recurring ‘tink’ note (2).
Philautus luteolus Blinking
A transparent inner eyelid is called the nictating membrane. It protects the frog's eyes when the animal is underwater. :-)
If you've ever noticed a frog blinking when it eats, it's because it uses its eyeballs to swallow. It can't chew its food effectively, or use its tongue to push food down its throat, so instead it uses its eyes. The eyes sink down into the skull, pushing the food along..!! :-D
Blue-eyed Bush Frog Top view
An endangered frog endemic to the Western Ghats..
Earlier It was called Philautus neelanethrus.
neelanethra means blue eyed.. Now it is called Raorchestes luteolus :-)
A short video goes here: http://www.youtube.com/watch?v=xdXPEoC8_fg&feature=plcp
Raorchestes luteolus (sometimes known as Coorg yellow bush frog) is a species of frog in the Rhacophoridae family. It is endemic to the Western Ghats, India, where it is only known from the state of Karnataka. Many of the known populations are from the Kodagu district, known also by its anglicised former name of Coorg—hence the common name. It is also known from the Shimoga district in the Sharavathi basin where it was described as a...