112 MR. G. A. BOULENGER ON THE REPTILES 



1-5. d & hgr. BonSaada (Latasie). Tyjtes o{ P. oudrii. 

 T 1 • 1 11 1^ ii ^ i? 



millim. millim. millini. mOlim. miUim. 



From snout to vent . . 57 53 47 44 39 



Head 16 15 14 13 12 



Fore limb 22 21 21 19 16 



Hind limb 29 29 27 25 22 



6 & 7. <s & hgr. Egypt {Wilkinson). Typical P. lohatus. 



Form slender, nostril in a very distinct swelling. Scaling finer than in P. oudrii, 

 head less depressed, eye larger, auricular meatus more elongate. Wrist reaching 

 halfway between the eye and the nostril (6) or the tip of the snout (7) ; heel to the 



1 o 1 o 



axil (7) or not quite so far (6). Labials ^, ^^. 



millim. millim. 



From snout to vent 73 47 



Head . 21 10 



Fore limb 36 25 



Hind limb 47 33 



8. 6 . Egypt {Burton), 



Similar to the preceding, but dorsal tubercles larger, quite as large as in P. oudrii. 



■ • 13 



Wrist to the nostril, heel to axil. Labials ^. 



millim. 



From snout to vent 75 



Head 21 



Fore limb 36 



Hind limb 48 



9. S . Egypt {Christy). 



Like 6 & 7, but the shape of the head approaching that of P. oudrii, and the nasal 

 swelling less marked. Wrist halfway between the eye and the nostril ; heel to f the 



distance between groin and axil. Labials j^. 



millim. 



From snout to vent 64 



Head 18 



Fore limb 27 



Hind limb 38'5 



