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 P^re 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 \h inch long. But they all 

 resemble M. edward&i 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. BowDLER Sharpe, F.L.S., r.Z.S., &c.. Department 

 of Zoology, British Museum. 



[Eeceived 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 E. leucophrys (Y.), founded on the 

 " Grivetin " of Levaillant, and with which E. jjecforalis of Smith is 

 synonymous. Its range is from the eastern districts of the Cape 

 colony into the Transvaal. 



Secondly, we have E. 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. 



Erythropygia jmena, 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 E. leucophrys 

 group. One from the Zambesi, discovered by Dr. Kirk during the 

 Livingstone Expedition, I propose to call E. zambesiana, sp. n. (Plate 



