Very closely allied to Rana tigrina

Very closely allied to Rana tigrina, from which it differs in its smaller size, half-webbed toes, slight development of the fringe on the fifth toe, and usually in the presence of a small outer metatarsal tubercle. The length and shape of the snout, the size of the inner metatarsal tubercle, and the relative length of the hind limbs and of the fourth toe vary to an extraordinary degree. The tibio-tarsal articulation usually reaches the eye, or between the latter and the end of the snout; but in some specimens (var. brevipalmata, from Pegu and S. India) it reaches considerably beyond the end of the snout, and the foot measures two thirds the distance between the end of the snout and the vent Greenish or olive, with darker spots; a light vertebral line or band frequently present; sometimes a light line along the inner side of the leg; sides of thighs black-marbled; throat of male usually with two large black blotches, sometimes connected and forming a 'M'.[3]