Bhupathy's purple frog (Nasikabatrachus bhupathi)

Description and adaptations

This species has a rounded, robust body, small eyes and a short, pointed snout adapted for digging. Its skin has a purplish hue that gives the common name. Other notable adaptations include strong, muscular forelimbs for burrowing and reduced limb length relative to typical tree or pond frogs. These features support a life spent mostly beneath the soil surface, where it locates invertebrate prey and avoids surface predators.

Distribution and habitat

Bhupathy's purple frog is known only from a restricted area of the wet evergreen and montane forests of the Western Ghats in India. It is associated with loose, moist soil and forested slopes where individuals remain underground for most of the year and surface briefly to reproduce in ephemeral streams or puddles during the monsoon.

Discovery and taxonomy

The species was described to science in the 21st century and was named in honor of the Indian herpetologist Subramanian Bhupathy. Nasikabatrachus species have attracted scientific attention because molecular studies suggest they represent an ancient lineage with deep evolutionary links to other southwestern Indian and island groups, making them important for understanding continental biogeography.

Ecology, conservation and significance

Like its better-known relative, the purple frog, Bhupathy's purple frog is of conservation concern because of its narrow range, specialized habitat needs and sensitivity to deforestation and land-use change. Its cryptic, underground lifestyle makes population assessment difficult, so habitat protection and surveys during the breeding season are important for monitoring. The species is also valued by scientists as a window into ancient amphibian evolution on the Indian subcontinent.

Notable facts

• Spends most of its life underground and emerges mainly to breed in the rainy season.
• Named to honor a prominent Indian herpetologist.
• Represents an evolutionarily distinct lineage with important biogeographic implications.