440 On a new Species of Bufo from Egypt. 
ventral, and sometimes a few obscure dusky small spots are 
seen between the angles of the ventrals and their keels. 
The first specimen of this snake (a young one) was observed 
by Mrs. Anderson in the desert to the east of Helouan, near 
Cairo. Dr. Rogers Pasha sent me two adults from Beltim, 
between Rosetta and Damietta; and an Arab in charge of the 
salt concession at Shaloof, near Suez, forwarded two speci- 
mens from that locality. 
I have much pleasure in connecting Dr. Rogers’s name 
with this new form, as he has given me most invaluable 
assistance in my researches in Heypt. 
Bufo Penton. 
This toad in its general appearance resembles - the pale 
irregularly spotted form of Bufo reqularis, Reuss, so common 
in Egypt. So far, however, as its real affinities are con- 
cerned, it seems to be most closely allied to B. viridis ; but it 
is at once distinguished from all the Old- World toads by the 
presence on the middle of the tarsus of a well-marked horny 
tubercle. The front of the snout of the adult is covered 
with a horny induration extending from the nostrils to the 
auterior angle of the eye, and backwards and between the 
eyes to the commencement of the interorbital space, but more 
or less traversed in the mesial line by a longitudinal furrow. 
This protection to the snout, the presence of two metatarsal 
tubercles, the innermost of which is a powerful shovel-shaped 
structure, and the existence of the tarsal tubercle, are features 
which would seem to indicate that this is a burrowing toad. 
‘The tympanum is vertically oval, and its transverse diameter 
equals about one half of the diameter of the eye from canthus 
to canthus. The breadth of the upper eyelid equals the inter- 
orbital space. ‘The paratoid is large and somewhat oval in 
shape. The limbs are rather short and stout, and the hind 
limb when laid forwards has the tarso-metatarsal joint reaching 
the ear. The toes are moderately webbed. 
The general colour in alcohol is olive-grey with a yellowish 
tinge, irregularly covered with more or less confluent dark 
markings. A darkish band across each eyelid. The dorsal 
glandules may be either reddish or yellowish. 
‘This species was found by Dr. Penton, of the Egyptian 
Army, whose name J have associated with it, in the Shaata 
Gardens, situated about one mile outside Suakin. I am 
indebted to him for many other most interesting specimens 
from Suakin. 
