Calotes jerdoni Guenther , 1870

Wang, Kai, Deepak, V., Das, Abhijit, Grismer, L. Lee, Liu, Shuo & Che, Jing, 2024, Systematic revision of the Calotes jerdoni complex (Reptilia: Squamata: Agamidae) in the Pan-Himalaya, Vertebrate Zoology 74, pp. 169-192 : 169

Calotes jerdoni Guenther, 1870

Lectotype.

NHMUK 1946.8.11.54, adult male from Khasi Hill, India.

Paralectotypes examined.

NHMUK 1946.8.50., adult male; NHMUK 1946.8.11.49, NHMUK 1946.8.11.51, NHMUK 1946.8.11.53, NHMUK 1946.8.11.56, adult females. Same collection information as the lectotype.

Expanded Diagnosis.

Calotes jerdoni can be diagnosed from members of the species complex by a combination of following morphological characters: (1) body size large, SVL 65.7-102.2 mm; (2) tail slender, long, TAL 271.0-324.3% SVL; (3) posterior-most conical scales of parallel ridges of head not elongated into spine shape, relatively low; (4) inferior row of conical scales 1 or 2 scales away from superior tympanum, TRD 38.4-52.5% TD; (5) scales posterolateral of parietal bearing longitudinal keels; (6) gular scales large, 16-19 along central midline, homogeneous in posteromedial region, much larger than ventrals; (7) gular scales strongly keeled, mucronate with distinct, elongated tips; (8) distinct gular pouch absent, transverse gular fold absent; (9) body scales large, ABR 46-53; (10) shoulder fold present, short, covered with granular scales underneath; (11) neck scales oriented straight posteriorly; (12) axillary scales oriented posteriorly or posterosuperiorly at an angle less than 60°; (13) nuchal crests relatively short, triangular shaped, differentiated from dorsal crest, TNC 8.1-13.2% HL; (14) middorsal crest scale count 34-40; (15) scale rows around midbody 46-53; (16) ventral scale count 62-75, (17) F4S 19-26, T4S 25-31; (18) dorsal and ventral background coloration Yellow Green (Color 103) to Grass Green (Color 110) in normal condition, can change drastically to dark brown to blackish red under stress; (19) Medium Chrome Orange (Color 75) patches present on elbows, knees, and ankles; and (20) Pale Pinkish Buff (Color 3) to Medium Chrome Orange (Color 75) dorsolateral stripes from neck to basal tail present in some individuals.