4 KOYAL ASIATIC SOCIETY, (CEYLON BRANCH.) 



In the generic and specific descriptions which I have 

 given for this supposed new Ceylon frog, I have followed 

 the exact order of Dr. Giinther's description of the Indian 

 frog above referred to, to facilitate comparisons between 

 the two. 



The generic descriptions of Xenophrys and Trachucephalus 

 (rough head,) are in many respects so similar that it is not 

 unlikely the former may be so amended as to include the 

 Ceylon Frog, but the very distinct aspects of the two, and 

 some remarkable differences more fully given in the specific 

 description, have induced me to include our Ceylon frog in 

 a new genus with a name indicating its singular rough head* 



In page 85 of the Proceedings of the Asiatic Society of 

 Bengal, for March 1870, the late Dr. Jerdon in the follow- 

 ing extract from his " Notes on Indian Herpetology," has 

 shewn that vomerine teeth are present in the genus Xtno- 

 phrys: — "I obtained numerous specimens of Xenophrys 

 monticola, Giinther, both at Darjeeling and the Khasi hills. 

 It has distinct vomerine teeth which Giinther was unable to 

 detect in the specimens of the British Museum. I also 

 obtained five specimens of a larger species of Xenophrys both 

 in Sikim and the Khasi hills, which I propose describing 

 as Xenophrys <jiga$" 



It is very likely that if these specimens of the undescribed 

 species referred to, exist 5 it may be found that they have 

 peculiarities of structure connecting them with Xenophrys 

 monticola, Giinther and our Ceylon frog. 



I regret to say that I have only one specimen of this 

 supposed new frog, and that I am not certain as to where 

 it was found, though I believe I caught it on the sides of a 

 stream near Hewisse in the southern portion of the Western 

 Province, and famous as one of Mr. Thwaites's best botanical 

 districts. I regret also to state that like many of the 

 earlier frogs caught by me, this one was put into strong 



