MAMMALS COLLECTED IN SIAM. 393 
overlapping in certain places, such as the Koh Lak Peaks, where 
the present form occurs in association with animals in which the 
lower legs are almost entirely black. 
My specimens were shot on the rugged limestone hill 
which forms the southern extremity of Koh Lak Bay. Near it are 
some limestone islets, one of which about a hundred yards to 
seaward is connected with the mainland hill by a reef almost dry 
at low tide; it was on this that Mr Butler obtained his specimen, 
but it is well known locally that the serows swim to and fro 
between mainland and islands. 
48. Cervus unicolor equinus Cuv. 
Cervus unicolor subsp, Kloss, P. Z. 8. 1916, p. 62. 
Cervus unicolor equinus, Kloss, Journ. N. H. Soc. Siam, TI, p. 28 
(1916). 
Two pairs of antlers, exact locality unknown, 
Indistinguishable from Sumatran and Malayan examples 
with the inner hinder tine of the terminal fork much shorter than 
the anterior outer one. 
The measurements and figure of a particularly fine pair of 
Siamese antlers are given by Mr. K. G. Gairdner in the Journal of 
the Natural History Society of Siam, Vol. I, p. 117 and plate (1914). 
49. Cervus eldi siamensis* 
(PLATE 8). 
Cervus eldi siamensis, Lydekker, Cat. Ung. Brit. Mus., IV, p. 104 
(1915) 
Panolia platyceros, Gray, List Mamm. Brit. Mus. p. 181 (1843) ; 
Blyth, P. Z. 8. 1867, p. 842, text figs 20-23, p. 841. ; 
Cervus eldi platyceros, Auct., Gairdner, Journ. Nat. Hist. Soc. Siam, 
I, p. 115 (1914). 
Three pairs of antlers, exact locality unknown. 
Two of the specimens are of normal size but the third pair, 
which I purchased in Bangkok, is an unusually fine example not 
only in length but in massiveness also. Greatest dimensions are :— 
Length of outer curve (exclusive of the brow tine) 36 inches. 
‘ ,, brow tine along lower side 131 
“Tf this deer is regarded as belonging to a genus distinct from 
Cervus, i.e. Rucervus, it should then be called Rucerrus eldi platyceros 
(Gray). 
VOL: lil, NO; +4, 1919. 
? 
