73 



mm 



23 





40 





10 





11 





16 





6 





1904.] Nelson AnnaiKlale — The Lizards of the Andamans. 21 



of zoological interest, in the second that the study of the geographical 

 distribution of animals must be preceded by a study of their bionomics. 



Description of Qonatodes andersonii, nov. 



Measurements, 



Total length ... 



Body 



Tail 



Head 



Fore-limb 



Hind-lirab 



Breadth of head 



Closely allied to G. kandianus (Kelaart) from which it differs only 

 in the following points : — (1) The habit is more slender, the limbs slightly, 

 the tail considerably, longer ; (2) the scales on the back and sides are 

 more nearly homogeneous, none of the former having a definite keel ; 

 (3) the spine-like tubercles on the flanks are much reduced, but not 

 altogether absent ; (4) there are only five or six labials on each jaw. The 

 scales on the belly are smooth, as in the typical form of Q, Tcandianus^ 

 or feebly keeled. G. andersonii differs from G. gracilis (another very 

 close ally of G. kandianus) chiefly in respect of its proportions, but also 

 in its scaling. The specimens have been compared with examples of 

 0. gracilis named by Boulenger and of G. kandianus from the Sarasins' 

 collection. 



I have also examined specimens of G. ivicksii (Stol.) from Preparia 

 which have been identified by the author of the species and may be his 

 types. They agree exactly with Boulenger's description of G. kandia- 

 nus and also with specimens of this species from Ceylon regard- 

 ed by Theobald as typical of G. humei. There can be no doubt, 

 therefore, that Boulenger was right in considering both these names to be 

 synonyms of G. kandianus^ as he does (but with a query) in the " Fauna 

 of India " and his Gatalogue of Lizards. 



In a recent puper (6) I identified, with some doubt, the immature 

 specimens of G. andersonii in the Museum with Beddorae's G, 

 marmoratus from S. India. The examination of an older specimen in 

 better preservation shows that I was wrong. 



Literature. 



1. Blanford ... "On the Distribution of Vertebrate animals in 



India, Ceylon, and Burma. " — Fhil. Trans. 

 Boy. Soc. B. CXCIV, 1901. 



