130 Mr. W. Ferguson on a new Genus of Batrachians. 
(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 following 
extract from his ‘‘ Notes on Indian Herpetology,” has shown 
that vomerine teeth are present in the genus Nenophrys :—“ 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 gigas.” 
It is very likely that, if these specimens of the undescribed 
species referred to exist, it may be found that they have pecu- 
liarities of structure connecting them with Yenophrys 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 | 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, thisone was put into strong spirits, which have shrivelled 
it up to acertain extent. It is very thin and flat in proportion 
to its size; and I doubt not that, like species of Hylorana, it is 
a powerful leaper. In the specific description given I have 
tried not to omit a single character which might assist in the 
identification of this frog. 
The interdigital membrane connecting the first, second, 
third, and fourth toes is just perceptible ; but I have no doubt 
that in newly caught specimens it will be found quite distinct. 
I have marked the presence of parotoids with a query, 
thus (?), because I am not certain whether the slight enlarge- 
ments behind the orbits are parotoids or not. 
Writing about Rana Kuhliz, Schl., of Ceylon, W. Theobald, 
junr., Esq., in his Catalogue of Reptiles in the Museum of the 
Asiatic Society of Bengal, makes the following very appro- 
priate remarks, which are equally applicable to all the Indian 
and Ceylon Batrachians and the Geckotide :—“ There are no 
reptiles in India in such a confused state as the Ranide; and 
I can add but little towards disentangling the shadowy species, 
real enough perhaps, but not as yet characterized. ‘The series 
