Humerana humeralis (Boulenger, 1887)

Deuti, Kaushik, Ray, Sukumar, Bag, Probhat & Dey, Swapan Kumar, 2017, Amphibians of the Duars area of Northern West Bengal, Records of the Zoological Survey of India 117 (3), pp. 221-241 : 234

17. Humerana humeralis (Boulenger, 1887)

1887. Rana humeralis Boulenger, Ann. Mus. Civ. Stor. Nat . Genova, Ser. 2, 5: 420.

Common Name: Bright Frog (English).

Specimens examined: 2 ex: A 12456 from Mendabari, Chilapata forest, Jalpaiguri district , West Bengal

Size: 65-75 mm (snout-vent length)

Distinguishing features: A medium to large-sized frog with a flattened body and two distinct dorso-lateral folds on both sides of the body. The head is longer than broad with a comparatively pointed snout, projecting beyond the lower jaw. The eyes are large, the ear-drum two-thirds that of the diameter of the eye.The inter-narial distance is greater than the inter-orbital distance. The canthus rostralis and loreal regions are flattened and so is the inter-orbital region. There is a distinct large and elongated rictal gland. The fore and hind limbs are elongated and the fingers and toes are long. Fingers are without any webbing but the finger tips are with small discs. The toes are almost fully webbed with two phalanges of the fourth toe free of webbing. The skin is smooth dorsally and laterally. The throat and abdomen are smooth and so is the ventral surface of the thigh.

Colour: Dorsum light brown with small black spots. Dorso-lateral folds also brown. Lateral side and flanks green. Ear-drum pinkish. Eyes with a golden rim. Pupil black. Upper lip with a white streak. Rictal gland also white. Fore and hind limbs light brown. Hind limbs dotted with brown. Ventral side whitish. Webbing on toes dark brown.

Habitat: Small wetlands including ponds and ditches inside tropical evergreen forests.

Remarks: This is the first record of this species from West Bengal.