INTRODUCTORY NOTE 
T he Batrachians collected by Mr. Robinson and myself, on which, with 
the Reptiles, Mr. Boulenger has been kind enough to furnish a report, 
were obtained in the Patani States, a few of the commoner species 
being also represented by duplicates from Perak or Selangor. The Reptiles 
are mostly from the same district, but some interesting forms were obtained 
in Selangor by Mr. Robinson, and the type of a new species of Testudo and 
several snakes and lizards were collected by us together in South Perak. In 
preparing the notes I have added to Mr. Boulenger’s report, I have used 
Mr. Robinson’s observations as well as my own, some of the latter having been 
made as long ago as 1899 ; and the descriptions of the colour of the living 
animals were mostly our joint work. From a bionomical standpoint, two 
interesting features in the collection are the evidence it affords (i) of the 
superior conspicuousness of coloration possessed by young individuals of certain 
species of Reptiles, and (2) of the mimicry of the deadly Naia hungarus by a 
non-venomous snake. 
It should be noted that while the ‘ Skeat ’ collection of Reptiles from the 
Patani States, which was made by myself, was peculiarly rich in snakes, our 
attempt in the present one was to obtain as representative a series of the 
lizards of the district as possible, so that the two collections supplement one 
another in a very interesting way. 
NELSON ANNANDALE 
