Ceratophora tennentii, head scales small, irregular, a ridge on each side of the occiput; scales on dorsum irregular and unequal in size, the larger ones feebly keeled; lateral scales large, more equal sized and more regularly disposed, smooth or feebly keeled, ponting upwards and backwards; a dorsal crest feebly defined or absent; a low toothed nuchal crest; gular and ventral scales always keeled, smaller, quadrangular, forming regular longitudinal series; the latter strongly; larger than ventrals, scales of limbs and tail more strongly keeled; the hind limb reaches to the eye or beyond. Rostral appendage large in both sexes, fleshy, compressed, sub oval, covered with small scales, its length shorter than that of the snout. SUP: 9, INF: 9-10, SVL: 70 mm; TAL: 135-170 mm (Deraniyagala, 1953; Smith, 1935 Taylor, 1953).

The body color is changeable from reddish brown to olive green, with a series of dark brown dorsal spots; a dark brown mark on the snout and an angular bar across the eyes; a white streak from the eye to the angle of the jaw; limbs and tail with dark bars; all the markings most distinct in the young, in which sometimes they are arranged to form longitudinal streaks down the back, throat white or yellow (Deraniyagala, 1953; Smith, 1935 Taylor, 1953).

This species distributed in the mountain regions in the Knuckles Massif of Sri Lanka above 760 m. Its movements are rather slow and diurnal, associated with tree trunks and cardamom stalks. It is spending much time on the trunks from where it looks for prey on the ground. When prey is seen the lizard leaps off the tree to the ground to capture it. It feeds on insects, grubs and earthworms (Das & De Silva, 2005; Manamendra-Arachchi & Liyanage, 1994; Senanayake, 1979; Smith, 1935).

Gravid females containing 3-4 eggs observed during June to August. Hatchlings were mainly confined to forest leaf litter and low shrubs (Das & De Silva, 2005)

Conservation status: Endangered (Manamendra-Arachchi & Liyanage, 1994; Bahir & Surasinghe, 2005; IUCN, 2007).