588 ON TWO NEW SPECIES OF ERYTHROPYGIA. [June 20, 
lower jaw 1:29; nasal bones 0°91; breadth between orbits °38; 
anterior palatine foramina °37; incisors to first upper molars °60 ; 
upper molar series °42. 
All the specimens were obtained by Pére David in October 1873, 
in Western Fokien, and were found among the rocks in high moun- 
tains. He states that this Rat does not burrow at all. 
The affinities of this species seem to be particularly interesting, 
as it is a member of a small group of Rats to which M. jerdoni, 
M. coxinga, Swinh., and M. niveiventer, Hodgs., belong, and which 
are distinguished by their sharply bicolor tails and their somewhat 
peculiarly shaped skulls. It is, however, more than twice the bulk of 
any of these others, none of them exceeding 6 inches in length, 
or having skulls more than about 13 inch long. But they all 
resemble M, edwards in being mountain-rats, and they all have the 
same large smooth foot-pads so eminently adapted for climbing over 
rocks and stones. 
I have much pleasure in connecting with this remarkable Rat the 
name of Professor Milne-Edwards, to whose kindness I owe the 
opportunity of describing it. 
- 10. On two apparently new Species of Erythropygia. By 
R. Bowprzr Suarre, F.LS., F.Z.8., &c., Department 
of Zoology, British Museum. 
[Received June 20, 1882,] 
(Plate XLV.) 
On carefully going over our specimens of Chat-Thrushes in the 
British Museum, I find that there are at least four species which 
have been hitherto confounded by myself and others under the 
heading of Erythropygia leucophrys (V.). 
First of all, there is the true H. leucophrys (V.), founded on the 
** Grivetin ” of Levaillant, and with which ZH. pectoralis of Smith is 
synonymous. Its range is from the eastern districts of the Cape 
colony into the Transvaal. 
Secondly, we have 2. munda (Cab. Orn. Centralbl. 1880; p. 143) 
from Angola, which has no stripes on the flanks and has a circle of 
dark streaks confined to the lower throat and fore neck. As Mr, 
Andersson’s Damara birds in the Museum belong to this species, its - 
range is from Angola to the centre of Damara Land. 
Lrythropygia paena, Smith, the most widely distributed species of 
the genus, differs from the foregoing birds in having a rufous tail 
tipped with white and crossed by a broad subterminal band of 
black. 
Then I find two other red-tailed species of the Z. leucophrys 
group. One from the Zambesi, discovered by Dr. Kirk during the 
Livingstone Expedition, I propose to call EZ. zambesiana, sp. n. (Plate 
