1 9 1 7 • ] the Birds of Yemen. 167 



a. c^. Menalcha, 7000 ft. 25.i. 13. [Type of the 

 species.] 



h-f. c? ? & imm. Sanaa, 7600 ft. Sept. 



" Though fairly common, is difficult to approach. It 

 frequents open ground, usually perching on an irrigation 

 bank or a clod of loam in a bit of bare fallow.^' 



This fine Stone-chat, described by Mr. O. -Grant, is closely 

 allied to (E. boitcB of Abyssinia and to (E. isabellina. From 

 the former it differs in its slightly paler colour, both above 

 and below, and also in possessing a very distinct white 

 streak behind the eye hardly indicated in CE. bottce. From 

 (E. isaheUlna it can be distinguished by its distinctly stouter 

 bill, the more ashy and less ochraceous tone of the back, 

 and by the contrast between the dark crown and the lighter 

 back, which, however, is not so evident in the freshly- 

 moulted September male from Sanaa as in the type. The 

 black on the outer tail-feathers is also more extensive in 

 Qinanthe bottce, measuring about 35 mm. against about 

 25 mm. in CE. isabellina. 



The most distinct character of the species, however, is 

 certainly the white streak behind the eye. 



A male of the year, killed September 3 at Sanaa, has 

 traces of the juvenile spotting on the crown and back, which 

 are quite alike in colour ; the secondaries are broadly edged 

 with tawny, and there is tiacing of freckling on the under- 

 side. 



The following are the measurements in millimetres : — 



Lengtli in 



flesh. Wing. Tail. Culmen. Tarsus, 



. cj type 180 102 65 16 34 



cJ imm. 3.ix.l3. .. 185 103 69 16 32 



S adt. 17 ix. 13 . . — 103 69 16 34 



$. 13.ix.l3 — 1'8 61 17 30 



S S. bottce — 103 65 16 31 



(Enanthe leucomela. 



Motacilta leucomela Pallas, N. Comm. Petrop. xlv. pt. ], 

 1770, p. 581 : Samara, Russia. 

 Saxicola pleschanka auct. 



