144 



DE. J ANDERSON ON REPTILES AND 



[May 21, 



No. of 

 specimens. 



1 & 2. 2 c?. Wadis between Lahej and the mountains. 



3. 1 juv. Wadi below Mount Manif north of Lahej. 



4. 2 • Hills north of Lahej towards Jiinil. 



5. Juv. Jimil Valley. 



6. Abian hill-country east of Aden. 



None of the examples of this species hitherto recorded from 

 Aden and its neighbourhood have had fewer than 38 scales trans- 

 versely and dorsally between the ventrals at the middle of the 

 body, but in some of the foregoing examples there are as few as 

 32, so that now the range of variation in the number of dorsal scales 

 in the region indicated is as much as 25, the highest number 

 occurring in Baluchistan, and the lowest in the Aden district, 

 where the variation may be as much as 13. 



12. ACANTHODACTYLUS BOSKIANUS Daud. 











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21 21 

 23 23 



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1. 1 $ . Wadi between Lahej and the mountains. 



2. 1 $ . Wadis below Mt. Manif. 



3. lj, Abian country. 



These specimens belong to the variety aspera, as is shown by the 

 small number of scales between the ventrals across the back. 

 Thirty-four is a lower number than has hitherto been recorded. 



13. Latastia longicaudata Eeuss. 



1 3 . Shaikh Othman. 



Snout to vent 98 mm., tail 320 mm. 



The only distinction in which this male differs from African 

 specimens is in the greater number of its femoral pores. The 

 highest number yet recorded in Africa is 14, whereas in this South 

 Arabian specimen there are as many as 16. The following are 

 the numbers of plates and scales present in this individual : — 



Ventrals from side to side 6. Ventrals between collar and 

 preanal region 31. Collar-plates 9. Upper labials 9 (6th below 

 eye). Scales round middle of body 58. 



