PHEYNOOEPHALTJ8. 153 



173. Phrynocephalus olivieri. 

 Phrynocephalus olivieri, Dum. $ Bibr. Erp. Gen. iv, p. 517 ; Blanf. 



Zool. E. Persia, p. 327 ; Bovkny. Cat. Liz. i, p. 370; id. Tr. Linn. 

 Soc. (2) v, 1889, p. 96, pi. viii, fig. 2. 

 Phrynocephalus tickelii, Giinth. Kept. B. I. p. 160. 



Snout extremely short ; upper head-scales large, smallest on 

 the middle of the supraorbital region, where they are about the 

 size of the median dorsals ; nostril directed forwards and up- 

 wards ; nasal large, in contact with its fellow (quite exceptionally 

 separated by a series of scales). Dorsal scales flat, smooth, juxta- 

 posed or slightly imbricate, with scattered enlarged nail-like scales ; 

 sides more or less folded, with small granular scales intermixed with 

 scattered enlarged ones. Gular, pectoral, and ventral scales smooth, 

 the former very small but not granular ; ventrals square, forming 

 slightly oblique transverse series. Outer edge of third and fourth 

 toes feebly denticulated. Tibia longer than the skull. Tail round, 

 gradually tapering to a fine point, covered with smooth or slightly 

 keeled scales ; on the basal portion of the tail they are intermixed 

 with enlarged conical scales ; the length of the tail equals once 

 and two thirds to a little more than twice the distance from 

 gular fold to vent. Grey above, marbled with darker and spotted 

 with lighter ; sometimes a blackish cross band behind the scapular 

 region, and another in front of the sacral region; sometimes a 

 large zone on the middle of the back, uniform light grey ; limbs 

 and tail with blackish cross bars, on the latter forming annuli which 

 are deep black on the lower surface ; body aud limbs white beneath. 



From snout to vent 2 inches ; tail 3. 



Hab. Persia, Baluchistan, at elevations from 2000 to 7000 feet ; 

 Afghanistan. 



174. Phrynocephalus theobaldi. 

 Phrynocephalus theobaldi, Slyth, J. A. S. B. xxxii, 1863, p. 90; 



Boideng. Cat. Liz. i, p. 373. 



Phrynocephalus caudivolvulus, Giinth. Kept. B. I. p. 161 ; Theob. Cat. 

 p. 115. 



Forehead very convex, with enlarged convex scales ; supraorbital 

 scales about as large as the largest dorsals ; occipital scales much 

 larger ; nostril directed forwards ; nasal separated from its fellow 

 by one or three longitudinal rows of scales. Dorsal scales homo- 

 geneous, small, granular on the sides, enlarged, flat, and subimbri- 

 cate on the vertebral region, all perfectly smooth ; pectorals and 

 ventrals small, perfectly smooth, not mucronate. Outer side of 

 third and fourth toes feebly but distinctly denticulated. Tibia 

 as long as the skull. Tail roundish, thickened and depressed at 

 the base, covered with smooth scales, ending obtusely ; its length 

 lg to 1| times the distance from gular fold to vent. Grey above, 

 more or less spotted with blackish or with light, dark-edged 

 ocelli ; lower surface white ; male with the middle of the throat 

 and of the belly, and the end of the tail beneath, black. 



From snout to vent 2 inches ; tail 2-5. 



Hab. Upper Indus Valley and Turkestan. 



