Nyctibatrachus minimus is a species of frog

Frog

Frogs are amphibians in the order Anura , formerly referred to as Salientia . Most frogs are characterized by a short body, webbed digits , protruding eyes and the absence of a tail...

 in the Ranidae family. It is the smallest known frog in the genus Nyctibatrachus

Nyctibatrachus

Nyctibatrachus is a genus of true frogs endemic to India. It is a very ancient member of the true frog family, Ranidae.Their scientific name means "night frog", in reference to their habits and dark color.-Species:...

and was recently discovered from Kurichiyarmala in the Western Ghats

Western Ghats

The Western Ghats, Western Ghauts or the Sahyādri is a mountain range along the western side of India. It runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain along the Arabian Sea. The Western Ghats block rainfall to the Deccan...

 or Wayanad, Kerala

Kerala

or Keralam is an Indian state located on the Malabar coast of south-west India. It was created on 1 November 1956 by the States Reorganisation Act by combining various Malayalam speaking regions....

.

Its most distinctive feature is the small adult snout-vent length, averaging only 12.3 mm in adult males (N = 15).

Miniaturization in Nyctibatrachus species seems to be associated with absence of webbing on toes and fingers, which may have resulted from evolutionary specialization to life in terrestrial habitats.