PREFACE. 



the Rhio-Lingga archipelago, which politically belongs to 

 Netherlands India and faunistically is allied to Sumatra, 

 rather than to the Malay Peninsula. 



Of this area, it may be confidently stated that our know- 

 ledge of the southern two-thirds, or that portion under 

 British control, is as complete as that of any similar area in 

 Asia, and that, as regards actual species, very few more 

 remain to be discovered, though, of course, much has still 

 to be accomplished in the department of general bionomics. 



In the northern third, which includes the Siamese and 

 Malay o- Siamese states usually known as Lower Siam, there 

 is scope for much more work, and it will probably be found 

 that when this district is thoroughly investigated, the range 

 of many Tenasserimcse and Siamese species not at present 

 included in our fauna will be extended in this direction. In 

 particular, the mountainous country in Nakawn Sitamarat 

 between latitudes 8° and 9° N. on the east coast of the 

 Peninsula may be expected to yield interesting novelties. 



The appended table serves to show the rate at which, 

 during the last thirteen years, our knowledge of the fauna 

 of the Malay Peninsula has been increased. As a matter of 

 fact the increase has been even greater than the figures 

 indicate, as certain species formerly included in the local 

 lists have been shown not to exist within the area, and are 

 therefore excluded from the latest account. 



Flower, Boulenger, Boulenger, 



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