Purple FrogĀ (Nasikabatrachus sahyadrensis), family Nasikabatrachidae, endemic to the Western Ghats of India
Adult frog described in 2003, though the juvenile frog was described in 1917. (Though, of course, the adult frog was known by local people).
This frog spends most of its life underground, and emerges to mate during monsoon rains.
Unlike many burrowing frogs, which emerge to feed above ground, this species feeds on termites underground (as well as feeding above).
photograph by P. S. Sivaprasad