1904.] Nelson Annaudale — The Lizards of the Andamans. 13 



Agamid^. 



Gonyocephahis suhcristatus* (Bljtli) ; Oalotes versicolor (Dand.) ; C. 

 andamanensisj Blgr.* ; G. mystaceusj* D. & B. 

 Varanidj:. 



Varamis salvator* (Luar. ) 



SCINCIDiE. 



Mahuia'multifasciata* (Kulil); M. tytleri, "Blgr. ; Lygosoma macula- 

 turn (Blyth) ; L. ulivaceum* (Gray) ; L. macrotympanum (Stol. ). 



The Maseum possesses a number of specimens of a Skink the exact 

 position of which I am not yet prepared to state. They are closely 

 allied to, if not identical with, L. maculatum (Blyth), but differ from the 

 descriptions of this species in proportions. Possibly they may be new ; 

 but as I have not yet worked through the Skinks in the Museum collec- 

 tion, I prefer not to express an opinion at present. The specimens 

 were collected by Major Anderson on Narcondam. 



Analysis of the Lacertilian Fauna of the Andamans. 

 Gymnodactylus ruhidus is a form peculiar to the Andamans. It has 

 close allies in G. marmoratus of the Malay Peninsula and Sumatra 

 (possibly occurring also in Tenasserim) and G. khasiensis of Assam. 

 Gonatodes andersonii is closely related to G. kandianus of Ceylon, South 

 India, Preparis Island (which lies between the Andamans and the 

 coast of Burma to the north) and Engano,* an island off south-west 

 Sumatra. Its exact relationship to this form is discussed below. 

 Although it is difficult to split up the genus Gonatodes into definite 

 sections, G. kandianus and G. andersonii may be said to belong to its 

 Malabar, as distinct from its Malayan, division. In South India and 

 Ceylon there are a number of species which have their headquarters 

 within the Malabar Province of recent zoologists (chiefly on the hills of 

 the east coast on the mainland) but extend into places not included 

 therein. In the Malay Peninsula two species, G. affinis and G, 

 kendallii, occur, the former of which possibly extends northwards into 

 Tenasserim. On the whole they are distinguished from the Malabar 

 species by their larger size, more brilliant coloration (in some cases), the 

 greater degree of specialisation of their dorsal scales (in some cases), 

 and above all by the absence of femoral or prseanal pores in the male. 

 The genus extends eastwards into the Malay Archipelago, is represented 

 by a number of species in Tropical America, and by at least one in 

 East Africa.^ 



1 Ann. Mag. N. H. (vi.) viii., 1891, pp. 288, 289. 



2 Bonlenger, Aivn. Mag. N. H. (6) xvi., 1895, p. 173 ; and Tornier, Zool. Jahrl, 

 Byst. xiii., 1900, p. 584. 



