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27 
NOTES ON THE FAUNA AND FLORA OF 
RATBURI AND PETCHABURI DISTRICTS. 
BY K. G. GAIRDNER. 
INTRODUCTORY. 
The subject of this paper is the Fauna and Flora of Ratburi 
and Petchaburi, in which districts I have been working for the past 
few years; but unfortunately, from the zoological standpoint, have 
only been taking notes of specimens obtained during the past two 
years ; viz., 1912-1913. 
The area in question lies between N. Lat. 12° 40' and 14° 10” 
and K. Long. 99°-100°. It is, of course, within the Oriental region 
bordering on the Indo-Malayan sub-region, and the Fauna is practically 
the same as that found in the adjoiming Province of Tenasserim. 
The country under review may be roughly divided into five 
fairly distinct classes, namely :— 
1. The coast line in the N. W. corner of the Gulf of Siam, 
about the mouths of the Ratburi and Petchaburi rivers, with a belt 
of tidal mangrove swamps varying in width, but at no point more 
than 7 miles wide. 
2. The alluvial paddy plains, with a soil generally lighter than 
that around Bangkok; and with abrupt limestone crags standing up 
from the plains. 
3. The slightly undulating country with isolated hills and 
small ranges; and covered with various classes of jungle, chiefly 
deciduous. 
4. The foothills covered with mixed jungle, deciduous and 
evergreen, and 
5. The continuous mountains running up to the watershed 
dividing Siam and Tenasserim, covered with dense evergreen jungle. 
The varying classes of country have each their fairly distinct 
populations. Along the coast are Siamese and Mons, with a number 
ot Chinese in the larger centres engaged in fishing and cutting of fire- 
wood and attap. 
