20. PHRXNOCEPHALUS. 369 



C. G. Danford, Esq. [P.]. 



0. G. Danford, Esq. [P.]. 

 C. G. Danford, Esq. [P.J. 

 C. Fellows, Esq. [P.J. 

 A. Christy, Esq. [P.]. 

 Sir J. Richardson [P.]. 

 Haslar Collection. 

 Canon Tristram [C.]. 

 Dr. Anderson [P.]. 

 Dr. Anderson [P.". 

 Dr. Anderson [P.]. 



M. Lefebvre [P.J. 

 Rev. W. Hennah [P.]. 



20. PHRYNOCEPHALUS* 



Phrynocephalus, Kaup, Isis, 1826, p. 591 ; Fitzing. N. Clatsif. Rept. 



p. 15 ; Wagl. Syst. Amph. p. 144 ; Wiegm. Herp. Mex. p. 17 ; 



Dum. <§• Bihr. Erp. Gen. iv. p. 612 j Gray, Cat. Liz. p. 259; 



Giinth. Rept. Brit. Ind. p. 160. 

 Megalochilus, Eichic. Zool. Spec. Ross. Pol. iii. p. 185: Gray. I.e. 



p. 261. 



Tympanum hidden. Body depressed. No dorsal crest. A trans- 

 verse gular fold ; no gular sac. Tail round. No femoral or 

 praeanal pores. 



South-eastern Europe ; Central Asia. 



Synopsis of the Species. 

 I. No lobe of skin at the angle of the mouth. 



A. Dorsal lepidosis heterogeneous. 



Nasals generally in contact ; toes feebly 



fringed; tail with deep black bars in- 



feriorly 1. olivieri, p. 370. 



Nasals separated ; toes strongly fringed . . 2. helioscopus, p. 371. 



B. Dorsal lepidosis homogeneous, the scales on the vertebral 



region considerably larger than those on the flanks ; no 

 spinose scales on the sides of the head and neck. 



1. Pectoral scales smooth or very feebly keeled ; tail not twice 

 as long as the distance from gular fold to vent. 



Pectoral scales quite smooth ; nostrils widely 



separated, directed outwards 3. vlangalii, p. 372. 



* 1. P. varius, Eichw. Zool. Spec. iii. p. 186. — S. Siberia. 



2. P. melanurus, Eichw. 1. c. — S. Siberia. 



3. P. nigricans, Eichw. 1. c. — S. Siberia. 



2b 



