. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. April 1990 Asiatic Herpetological Research Vol. 3, p. 109. FIG. 4. Distribution of Stellio himalayanus and Stellio sacra. Question mark indicates Xinjiang Autonomous Region population of questionable taxonomic status. The ventral head scales are also small and not regular. The size of these scales decreases from the nasal end toward the gular fold. On the sides of the head and on the neck are situated small groups of very strongly keeled spinose scales. Stellio sacra has nostrils shaped longitudina
. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. April 1990 Asiatic Herpetological Research Vol. 3, p. 109. FIG. 4. Distribution of Stellio himalayanus and Stellio sacra. Question mark indicates Xinjiang Autonomous Region population of questionable taxonomic status. The ventral head scales are also small and not regular. The size of these scales decreases from the nasal end toward the gular fold. On the sides of the head and on the neck are situated small groups of very strongly keeled spinose scales. Stellio sacra has nostrils shaped longitudinally oval, similar to Stellio chernovi and Stellio himalayanus. Where as Stellio agrorensis, Stellio melanurus, Stellio nuristanicus and Stellio tuberculatus have round nostrils. Stellio sacra has a round tympanum. In Stellio sacra, the scales of the upper surface of the fore and hind limbs are comparatively small, but their size is similar to the largest dorsal scales. These scales are strongly keeled. Single slightly enlarged scales are distinguishable from the surrounding small scales. The scales on the base of the tail are keeled and mucronate, but to a smaller degree than for example in Stellio himalayanus. The results of the comparative study of Asiatic rock agamids enables the typical distinguishing characters of Stellio sacra to be identified: 1. The small size of the scales. 2. The presence of a short nuchal crest made up of from two to three scale rows of slightly enlarged, narrow, keeled, dark colored scales. Such a nuchal crest is absent in Stellio chernovi, Stellio himalayanus, Stellio stoliczkanus and other species. A nuchal crest is noted however in Stellio melanurus, Stellio nuptus, Stellio Stellio, and Stellio Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Asiatic Herpetologic
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