1899.1 BATRAOHIA.NS OF THE MALAY PENINSULA AND STAM. 901 



Localities. Of this interesting frog, which does not seem to have 

 been previously recorded from Siam, I obtained a specimen at 

 Bawtoug, Kabin, in March 1897. I also got one near the foot of 

 Gunong Pulai, Johore, in September 1897; and Mr. Eidley 

 obtained a specimen in Selangor, in July 1897 ; these are the two 

 first reported occurrences of this species on the mainland of the 

 Peninsula. 



Habits. Nothing is known definitely of the habits of this frog, 

 but it is supposed to be the author of a remarkable strident call 

 heard in certain Malay jungles, which may be written " waalk, 

 waalk." There is a big lield of interesting work in determining 

 the animals whose voices are heard both by da}^ and night in 

 jungle-clad districts ; neither the English pioneers nor the Malays 

 know for certain what animals make some of the most noticeable 

 jungle calls : as an instance I may mention that in June 1898 in 

 the woods round Jenan, Kedah, a cry of " koop " was to be heard, 

 even at high midday, which we imagined to be made by some 

 batrachian, but diligent search on the part of several local Malays, 

 my Siamese "boy," and myself failed to discover anything in the 

 spots whence the sound seemed to have proceeded. 



Colour (in life). Kabin specimen (March). — Above bright 

 yellowish bronze ; a broad dark brown line from snout to inset of 

 hind leg, passing through eye. At inset of hind leg is a con- 

 spicuous black spot surrounded by a white ring, the greater part 

 of the thighs is bright vermilion. 



Johore specimen (September). — Above rusty red-brown ; a 

 narrow black line (bordered above with yellow) from snout to 

 inset of hind leg, passing through eye. Just above where this 

 black line terminates on either side of the back is a conspicuous 

 round black spot. The lower surfaces are a paler red than the 

 upper, and the lower aspect of the hind leg is marbled with dark 

 brown on a buff ground. 



Size. Kabin specimen, snout to vent 36 mm. 



Distribution. Burma, South China, Siam, Malay Peninsula, 

 Natunas, Borneo. 



27. MiCEOHYLA OBNATA (Dum. & Bibrou). (Plate LX. figs. 1, 

 la, 16.) 



MicroJiyla ornata, Blgr. Cat. Batr. Sal. p. 165. 



Localities. This little frog was obtained by M. Mouhot in 

 Cambodia, but it does not seem to have been previously recorded 

 from either Siam or the Malay Peninsula. I ha\e found it in 

 Bangkok in the months of Jan., Feb., ]March, April, May, June, 

 July, August, and December ; at Paknam Menam in August ; in 

 the Dong Phya Pai, at an elevation of about 900 feet, in November ; 

 at Ayuthia in February ; at Kabin in March ; at Chantaboon in 

 January; and in the B-oyal Siamese Museum stores were some 

 specimens labelled " Barigpain, Oct. '93." In March 1898 I 

 obtained a single frog in the "Waterfall Gardens, Penang, which is 

 referred to this species ; and in June 1898 found it numerous 



