1. TAKANUS. 



307 



aud twoaty-five transverse series (counted from collar-fold to groin). 

 Caudal scales more or less di>itinctly keeled ; no caudal crest. 

 Greyish j-ellow, sometimes with more or less distinct brown cross 

 bars on the back and tail and brown streaks along the sides of the 

 neck. Young with round 5'ellow spots and dark brown cross bars 

 and temporal and cervical streaks ; a few brown lines across the 

 snout and short vertical brown lijies on the lower lip. 



centim. 



Total length 127 



Head 9 



Neck 9 



Body 38 



centim. 



Fore limb 19 



Hind limb 21 



Tail 71 



North Africa ; South-western Asia, from Arabia and the Caspian 

 Sea to North-western India. 



a, h. Ad. & yg. 

 c, d. Ad., stuffed. 

 e, f. Ad., skeletons. 

 y. Hgr., stufted. 



h. Ad., stuffed. 

 i, k. Ad., stuffed. 

 /. Hgr., stuffed. 

 m. Ad., stuffed. 



n 



-0. Hen: 



p. Yg. 



q. Ad., stuffed. 

 r. Ad. 

 s. Ad. 



N. Africa. 



N. Africa. 



Algeria. 



Desert de Souf, Al- 

 geria. 



Egypt. 



Egypt. 



Bauks of the Nile. 



Sarakhe, 1000 feet, 

 Caspian Sea. 



Ghainak, Persia. 



Konah Takhli, S. 

 Persia. 



Kokand. 



Agra. 



Kurrachee. 



Sir J. G. Wilkinson [P.]. 



W. K. Loftus, Esq. [P.]. 

 Sir J. G. Wilkinson [P.]. 



C.ipt. Napier [C.]. 



Secretary of State for India 



[P.]. 



2. Varanus albigularis. 



Regenia albogularis, Grai/, Cat. p. 8. 

 Tupinambis albigularis, Daud. Bept. iii. p. 72, pi. xxxii. 

 Monitor (Psammosaurus) albogularis. Gray, Griff. A. K. ix. Syn. 



p. 28. 

 Varanus albogularis, Diun. !^- Bihr. iii. p. 495 ; Smith, III. .S'. Afr., 



Itept. pi. ii. 

 Monitor exanthematicus, var. C, Schley. Abbild. p. 71. 

 albogularis, Peters, Mon. Berl. Ac. 1870, p. 100, and Reise 



Mossamh. iii. p. 24, pi. iv. fig. 3. 



Teeth obtusely conical. Snout obtuse, convex, measuring the 

 distance from the anterior border of the orbit to the anterior border 

 of the ear ; can thus rostralis obtuse. Nostril an olilique slit, three 

 times as distant from the end of the snout as from the orbit. Digits 

 short, the length of the fourth toe, measured from its articulation 

 with the tarsus to the base of the claw, equalling about that of 

 the femur. Tail feebly compressed, round in its anterior third, 

 keeled above. Scales of head small, subequal. Scales on upper 



X 2 



