289 



Amphibia. 



Lacertilia. 



Proportion 

 of Amphibia. 



Nias 



Engano . . . 

 Sumatra . . , 

 Borneo . . . . 



Java 



Lombok . . . 

 Timor . . . . 

 Celebes . . . 

 Halmahera . 

 Ternate . . . 

 Ceram . . . . 

 Ambon. . . . 

 Kei islands . 

 Aru islands . 

 New Guinea. 



1 1 



2 



61 



85 



38 



7 



5 



22 



9 

 4 

 6 



5 

 3 

 9 



85 



23 



9 

 62 



91 

 43 

 II 



15 

 41 

 29 

 24 

 20 

 22 

 26 

 29 



113 



0,48 

 0,22 

 0,98 



0.93 

 0,88 

 0,64 



0,33 

 0,54 

 0,31 

 0,17 

 0,30 

 0,23 

 0,1 1 

 0,31 

 0,75 



It results from this table, that the number of species of 

 Amphibia is relatively the largest in the larger islands, the 

 smallest in smaller islands and especially in the islands between 

 Celebes and New Guinea, agreeing with the supposition that 

 these islands have had only narrow land connections, which 

 were hardly to transgress by Amphibians. 



iNDO-AUStRALlAN AMPHIBIA. 



I^ 



