Ixalus fuscus Boulenger, 1882 Micrixalus fuscus (dusky torrent frog or brown tropical frog) is a species of small frog found in dense forested hill streams in the Western Ghats of India.
[3] Male Micrixalus fuscus have a single vocal sac, a white patch on the lower jaw, and a prominent nuptial pad on the first finger.
Characteristic for the genus, they display the "foot-flagging" behavior, where males tap their hindfeet and extend it, then stretching it out and shaking the foot at prospective mates and rival males.
Male-male combats also involve kicking.
[3] Description from G. A. Boulenger's (1890) "Fauna of British India":[5] The natural habitats of this species are fast-flowing streams covered by forest canopy.