30 Lacert'idiv. 



from the southernmost extremity of the range (Gallaland and East 

 Africa) ; as, from my own counts and those of Sterufeld, the pores 

 number 8 to 10, 9 being the most frequent number, I place them 

 provisionally under the var. revoili. 



Forma ti/jjica {L. longicaudata, Keuss, samharica, Blauf., sturti, 

 Blanf.). 9 to 14 femoral pores on each side, usually 10 to 12 ; 31 to 

 41 f;ular scales; 23 to 27 lamellar scales under the fourth toe. — 

 Siuaitic Peninsula, African Coast of the Red Sea, Al)yssinia, Senegal, 

 Northern Nigeria and Lake Chad district. 



Var. andersonii, Blgr. (i. longicaudata, And. 1901). 14 to 16 

 femoral pores ou each side ; 43 to 47 gular scales ; 26 to 32 lamellar 

 scales under the fourth toe. — S.W. Arabia. 



Var. revoili, Vaill. (L. doriie, Bedr.). 5 to 10 femoral pores ou each 

 side, usually 6 to 9 ; 28 to 48 gular scales ; 22 to 27 lamellar scales 

 under the fourth toe. — Inland districts of Eritrea, Eastern Sudan, 

 Abyssinia, Soraaliland, G-allaland, British East Africa. 



These definitions will probably have to be modified when a larger 

 number of specimens have been examined, and it is possible that the 

 division into varieties, as here proposed, will have to be abandoned. 

 But they express correctly, I think, the present state of our knowledge. 



Particulars of Specimens Examined. 

 Forma typica. 

 9 Durrur, N. of Suakiu 



^ Suakiu 



t^ Sinkat, nr. Suakin . 



9 Shendi, Egypt. Sudan . 



^ Samhar Coast, Eritrea 

 (type of L. samharica) . 



