I 48 
toes being dilated into regular disks. These webs are speci- 
ally strongly developed in Wallace's ' Flying Frog/ though it 
scarcely can be said that the frog has the power of flying. It 
has even been doubted whether the webs can serve as para- 
chutes. But as these frogs are arboreal, it i% very possible that 
the broadened toes with the sticky membranes between them 
enable their possessors to gain rapidly a foot-hold after a long 
leap from branch to branch. A very beautiful species of those 
' Flying Frogs * is Rhacophorus nigropalmatm, a specimen of 
which was caught by Mr, Machado some years ago, January 1 899, 
at Kuala Merbau, Ulu Pahang, and subsequently presented by him 
to the Museum. It had fallen into an old prospecting pit, about 
twelve feet deep, and could not get out, and there it was found 
swimming in the water. Its colour, when alive, was a bright 
green, with numerous white dots, and the enormous webs were 
black near their base, but yellowish towards the edges. It 
measured inches from snout to vent. Closely allied is a 
Frog which is common on Singapore island and elsewhere, the 
Rhacophorus leucomyslax, the ' Katak pisang * of the Malays, 
called thus because it is frequently found on Pisang trees. It is 
of a greyish-brown colour and has four darker lines along its 
back. Its webs are much less developed than in the 'Flying 
Frog.' 
Most disappointing to newcomers is the Bull-frog* 
Callula pulchra. Though its voice must satisfy all reasonable 
expectations and may be heard during any rainstorm, especial- 
ly in the first rainstorm after a long spell of dry weather, in 
size this species does not even come up to the common English 
Frog or Toad. It measures only about 2 5^ inches from snout 
to vent. Its jaws are without teeth. 
Coming now to the Toads (Malay name * Kodok puru ') 
we find Bufo mdanostklus to be abundant on Singapore island. 
It is very like the English toad. It is yeHowish or brownish 
above and has numbers of black ridges and warts. It is said to 
grow above 6 inches in size, but the largest specimen in the 
collection measures only 3 H inches. — By far the largest toads 
exhibited are two specimens, male and female, of Bufo asper^ 
from Bukit Kedondong, Malacca. The female which is the 
larger, measures 7 inches in length. 
The most curious Batrachian on Singapore island is 
Megalophrys nasuta which, although it has a smooth skin, belongs 
to the Toads too. It is of a brownish colour, and its upper 
eyelids and the snout are produced into large triangular flaps 
of skin. It has repeatedly been caught on Bukit Timah. 
