154 AGAMIDjE. 



1 75. Phrynocephalus caudivolvulus. 



Lacerta caudivolvula, Pallas, Zooyr. Rosso-As. iii, p. 27. 

 Phrynocephalus caudivolvulus, Giinth. Rept.B. I. p. 161 (part.) ; Bou- 

 leng. Cat. Liz. i, p. 375. 



Forehead convex and slightly sloping, with moderately enlarged 

 convex scales ; occipital scales larger than the median dorsals ; 

 supraorbital scales very small, granular, or nearly as large as 

 median dorsals; nostril directed forwards and slightly upwards; 

 nasal separated from its fellow by 3 to 5 longitudinal series of 

 scales. Dorsal scales homogeneous, small, granular on the sides, 

 enlarged, flat, and subimbricate, smooth or feebly keeled on the 

 vertebral region. Gular scales smooth or indistinctly keeled ; 

 pectoral and anterior ventral scales strongly keeled and mucronate, 

 posterior ventrals smooth. Scales on upper surface of limbs keeled. 

 Both sides of third and fourth toes with a strong fringe of acute 

 lobules. Tibia longer than the skull. Tail not quite twice as long 

 as the distance from gular fold to vent, swollen and much depressed 

 at the base, then roundish depressed, tapering to a rather fine point, 

 the end curling upwards ; except on the basal portion of the tail, 

 the scales are keeled. Greyish above, spotted, marbled, or ver- 

 miculated with blackish ; tail beneath with 3 to 5 black bars 

 alternating with white ones of nearly equal width ; lower surfaces 

 white. 



From snout to vent 2 inches ; tail 2-6. 



Hob. From the shores of the Caspian Sea to Turkestan ; Ladak 

 (fide Scblagintweit). 



176. Phrynocephalus ornatus. 



Phrynocephalus ornatus, Bouleng. Cat. Liz. iii, p. 496 ; id. Tr. Linn. 

 Soc. (2) v, 1889. p. 97, pi. viii, fig. 3. 



Forehead convex and slightly sloping, with scarcely enlarged 

 keeled scales ; occipitals very feebly enlarged ; supraocular scales a 

 little smaller than median dorsals, imbricate, feebly keeled ; nostril 

 directed forwards and upwards ; nasals very large and in contact 

 mesially. Dorsal scales homogeneous, small and granular on the 

 sides, enlarged, flat, imbricate, and feebly keeled on the back. 

 Gular, pectoral, and ventral scales smooth or indistinctly keeled. 

 Scales on upper surface of limbs feebly keeled. Digital fringes 

 moderately developed, stronger on the outer side of the fourth toe 

 than on the inner. Tibia much longer than the skull. The hind 

 limb reaches beyond the tip of the snout. Tail nearly twice as long 

 as the distance from gular fold to vent, strongly depressed at the 

 base, roundish-depressed throughout the greater part of its length ; 

 except on the basal portion of the tail, the scales are keeled. 

 Yellowish or yellowish-grey above, with small grey or blackish 

 specks and symmetrical markings ; usually a few rose-coloured, 

 purple-edged spots on the anterior part of the back and smaller 

 orange ones on the hinder part ; head with one or two orange trans- 



