East Himalayan Mountain Lizard

From C. A. L. Gunther (1864) The Reptiles of British India:

Head covered with small, irregular, keeled shields above; canthusrostralis sharp; a small tubercle behind the superciliary edge; throat covered with small keeled scales; a series of small shields commences at the chin and runs backwards parallel to the lower labial shields. Tongue scarcely notched in front; two small canine teeth in each jaw; the upper with fifteen very small molars on each side, much smaller than those of the lower jaw, which arc sub-corneal and seventeen in number. A fold across the throat; male with a small gular pouch. Nape of the neck granular, with scattered larger tubercles. Both sexes with a nuchal crest, composed of triangular lobes; it is continued along the back as a slight serrated ridge, and gradually disappears on the anterior part of the tail. Trunk slightly compressed; the upper parts arc covered with smallish, keeled scales, intermixed with larger ones, all having their points obliquely directed upwards. Ventral scales strongly keeled, of moderate size; there arc about thirty-eight scales in a longitudinal series between fore and hind limb. All the scales of the tail are rhomboid and keeled, those on its lower side being the largest. The hind limb extends to the eye, if laid forwards; toes with keeled scales below; the fourth hind toe is one-fourth longer than the third. …