152 COLTJBEID^. 



lower parts white, dotted with, greyish or olive, and with one or 

 two dark lines on each side. 



Total length 870 millim. ; tail 190. 



Aralo-Caspian Steppes, Turkestan, Afghanistan, Eastern Persia. 



a. (J (V. 192 ; C. ?). C. Asia. Prof. Peters [P.]. 



b-e. cJ (V. 187 ; 0. 101) Syr Daria. M. Serverzow [0.]. 



& ? (V. 182 ; 0. 86). 



d. <J (V. 184 ; 0. 94). Daryalyk. M. Serverzow [0.]. 



e-i. d (V. 181 ; C. 87), Chinas, Turkestan. St. Petersburg Mus. 



hgr. (V. 181, 178 ; [E.]. 



0.85,?) &yg.(V. 180, 



188 ; 0. 83, 90). 



k-l. 6 (V. 188 ; 0. ?) & N. side of Hum- St. G. Littledale, Esq. 



$ (V. 188; 0.99). boldt Mts., E. [P.]. 

 Turkestan. 



m-p. d (V. 194, 184 ; 0. Tirphul, Afghani- Dr. J. Aitchison [C] : 



98, 82) & $ (V. 175,, Stan. Afghan Boundary 



176 ; 0. 72, 82). Oommission. 



q. S (V. 179 ; 0. 82). Helmand. Dr. J. Aitchison [0.]; 



Afghan Boundary 

 Oommission. 



SkuUofi. 



171. PSAMMOPHIS. 



Psammophis, part., Soie, Jsis, 1827, p. 621 ; Schleg. Phys. Serp. ii. 



p. 201 (1887); Bum. Sr Bibr.JErp. G6n. vii. p. 887 (1854); Ounth. 



Cat. Col. 8n. p. 135 (1858) ; Jan, Benco sist. Ofid. p. 90 (1863). 

 Psammophis, Wagler, Syst. Amph. p. 189 (1830); Cfunth. Rept. 



Brit. Ind. p. 290 (1864) ; Bouleng. Faun. Ind., Rent. p. 366 



(1890). 

 Phayrea, Theob. Cat. Rept. As. 8oc. Mus. p. 51 (1868). 

 Amphiophis, Socage, Jam. Sc. Lisb. iv. 1872, p. 81. 



Mam il lary teeth 10 to 13, one or two in the middle much enlarged, 

 fang-like, preceded and followed by an interspace, the last or last 

 two large and grooved and situated below the posterior border of 

 the eye : anterior mandibular teeth very strongly enlarged. Head 

 distinct from neck, with angular oanthus rostralis ; eye moderate or 

 large, with round pupil ; frontal narrow. Body cylindrical ; scales 

 smooth, more or less oblique *, with apical pits, in 11 to 19 rows ; 

 ventrals rounded. Tail long ; subcaudals in two rows. 



Africa and Southern Asia. 



The skuU of this genus, as weU as that of the two preceding 

 genera, i"! remarkable for the wide vacuity between the frontal 

 and sphenoid bones, a condition which approaches that of the 

 LacertUia. Quite in front, however, the frontals descend to join 

 the sphenoid. 



* Scarcely oblique in P. crucifer and P. angolensis. 



