174 COUNT NILS GYLDENSTOLPE ON 
The Burmese race of the Gaur probably inhabits Northern and 
North-western Siam, where it seems to be fairly common in the moun 
tain regions. Southern limits of range not definitely known. Gaur 
are, however, not rare on the Siam-Tenasserim boundary, but whethe 
they belong to the Burmese or to the Malayan race ( Bos qaurus hub- 
backi Lyd.) is not known. 
299. Bos BANTENG BIRMANICUS Lydekker. 
Bos sondaicus birmanicus, Lydekker. P. Z. 8S. 1898. p. 277. (Burma). 
The Banteng or Tsaine occurs among the mountain regions 
throughout Siam, though it seems to be more common in the Northern 
and Central parts of the country. Southwards it extends at least 
down to the Province of Ratburi, according to Gairdner. From the 
Raheng district of Central Siam, Lydekker has described a spotted 
Tsaine under the name of Bos porter’ (P. Z. 8S. 1909. p. 669. ), which 
is apparently only an individual variation of birmanicus. 
ORDER SIRENTA. 
300. HALICORE DUGONG (Erxl.). 
Trichechus dugong, Erxleben. Syst. Reg. Anim. 1777. p 599. 
The Dugong has been found on the shores of the Indian Ocean 
from East Africa to Australia, and it has been mentioned from ‘‘ Siam” 
by Flower. 
ORDER CETACEA, 
SUBORDER ODONTOCETI. 
301. SOTALIA SINENSIS (Flower). 
Delphinus sinensis, Flower. Trans Zool. Soe. VIL. 1870. p. 151, 
(Amoy). 
Kloss, when sailing from Klong Yai to Klong Menao in South. 
eastern Siam, observed a number of white Cetaceans near the shore 
which he believes belonged to this species. 
502. ORCAELLA BREVIROSTRIS (Owen). 
Phocaena brevirostris, Owen, Trans. Zool. Soc. VI. 1866 p. 24. pl. 4, 
figs, 1-3. (India). 
Specimens of the Larger Indian Porpoise have been recorded 
from Patani by Bonhote and by Kloss from the Chantaboon coast, 
where one specimen was obtained at Klong Yai on the 6th December 
’ JOURN. NAT. HIST, SOC. STAM, 
