viii Introduction. 



collections other than the British Museum are marked 

 with the following initials in the tables of particulars : — 



B.C. Bedriaga Collection. L.M. Lyons Museum. 



B.M. Brussels Museum. M.C L. Miiller Collection. 



B.S. Bombay Nat. Hist. Society's McG.M. McGregor Museum, Kim- 

 Museum, berley. 



D.M. Dublin Museum. N.M. Nairobi Museum. 



F.M. Florence Museum. P.M. Paris Museum. 



G.K.C. Gadeau de Kerville Col- S.A.M. South African Museum, 

 lection. Cape Town. 



G.M. Genoa Museum. T.M. Turin Museum. 



I.M. Indian Museum, Calcutta. W.C. Werner Collection. 



In addition to those mentioned above as having helped 

 me with material for study, I w^ish to thank M. G. de 

 Southoff, who has recently presented to the British 

 Museum a fine series of Lizards, mostly from Italy and the 

 islands of the Mediterranean, selected from his private 

 collection. 



Various parts of this monograph have already appeared 

 in the publications of the Zoological Society and 

 elsewhere, and are reproduced with additions and 

 emendations. 



This monograph will form two volumes ; the second is 

 ready for printing, and it is hoped it may follow without 

 much delay, with a list of the specimens in the Museum, 

 and an alphabetical index to the whole work. 



G. A. BOULENGER. 



ZooLoaiCAL Dbpartmbnt, 

 British Museum ; 

 20th April, 1920. 



