Why in news?
Zoologists from the Zoological Survey of India recently described a new species of legless amphibian from the northern Western Ghats. Named Gegeneophis valmiki in honour of the ancient sage Valmiki, it is the first addition to its genus in over a decade. The discovery was made near Valmiki Temple in Maharashtra and highlights the hidden diversity of caecilians in India.
Background
Caecilians are limbless, worm‑like amphibians that spend most of their lives burrowing underground. They have elongated bodies, ring‑like skin folds and rudimentary eyes covered by bone, rendering them effectively blind. Of the roughly 9,000 known amphibian species, only about 230 are caecilians. India hosts 42 species, many of which are endemic to the Western Ghats. Because they live in soil and leaf litter, caecilians are seldom seen, and new species are often discovered during targeted surveys.
Features of Gegeneophis valmiki
- Habitat: The species was found in forested areas of Sindhudurg district, Maharashtra, among loose soil and decomposing leaf litter. It likely spends its life underground, emerging only during heavy rains.
- Appearance: Individuals measure about 160 millimetres in length, with dark bluish‑grey skin and ring‑like grooves along the body. The head is blunt, and the eyes are covered by skin and bone.
- Genus characteristics: The genus Gegeneophis comprises small caecilians found in peninsular India. The new species differs from its relatives in the arrangement of teeth and annular grooves.
Ecological significance
- Soil aeration: By burrowing through soil, caecilians help aerate it, improving water infiltration and nutrient cycling.
- Food web role: They feed on earthworms, insects and other small invertebrates and are in turn preyed upon by snakes and birds, linking subterranean and surface ecosystems.
- Conservation importance: Many caecilians are threatened by habitat loss and pollution. Documenting new species is crucial to assess their conservation status and implement protective measures.
Conclusion
The discovery of Gegeneophis valmiki illustrates how much remains to be learned about India’s underground fauna. Continued surveys and habitat protection are essential to prevent the “silent extinctions” of these cryptic amphibians.
Source: TOI