187-4.] THE GENUS SAXICOLA. 235 



grey than the back, and the interscapular feathers have dark shafts, 

 there are also dark shafts on some of the lesser wing-coverts near 

 the carpus. 



We were at first disposed to look upon this form as the female of 

 S. leucomelcena ; but as we have now seen three specimens marked 

 as males in Mr. Sharpe's collection and two in the British Museum, 

 we can but conclude that it is a distinct species. 



Hab. South Africa, Damara Land. 



29. Saxicola cinerea. 



Le Traquet tractrac, Levaill. Ois. d'Afr. pi, 184. fig. 1 (1805). 

 (Enanthe cinerea, Vieill. N. Diet. xxi. p. 437, 1818, ex Levaill. (nee 

 (En. cinerea, ibid. p. 418). 



Motacilla tractrac, Boie, Isis, 1828, p. 320. 



Saxicola levaillantii, Smith, Zool. of S. Afr. notes to pi. 28 (1849). 



Adult. Upper parts to the rump brownish cinereous ; wings 

 brown, the coverts and secondaries with pale edges ; lower rump 

 and upper tail-coverts white ; tail-feathers dark brown, the outer 

 webs of all except the central pair white, the quantity increasing on 

 the outermost feathers; lower parts pale isabelline grey; chiu whitish ; 

 abdomen and under tail-coverts white; ear-coverts pale hair-brown. 

 Culmen 0*8, wing 3*85, tail 2*6, tarsus T15. 



Hab. South Africa. 



Vieillot, it is true, used the same name (Enanthe cinerea in a pre- 

 vious page of the same work for the common Wheatear ; but as both 

 names were published at the same time, and the first in position 

 cannot be used, it does not appear necessary to change the received 

 nomenclature. 



30. Saxicola pollttx. (Plate XXXVIII. fig. 1.) 

 Saxicola pollux, Hartl. P. Z. S. 1865, p. 747. 



Adult. Dark ashy grey; greater wing-coverts and quills dusky 

 black ; the smaller coverts with grey edgings, the larger coverts and 

 secondaries with whitish edgings ; tail-feathers black, the four outer 

 feathers on each side with a bread white external margin, which 

 extends to the tip of the outermost feather and diminishes gradually 

 on the three next, till on the fourth feather from the outside it only 

 extends over the basal half of the feather ; underparts lighter 

 grey, fading almost to white on the abdomen and lower tail-coverts ; 

 axillaries white ; the first long primary deeply emarginate on the 

 inner web at the tip. Culmen 0*75, wing 4*1, tail 2*85, tarsus 1*3. 



Hab. South Africa. 



The only two specimens we have examined are labelled Beaufort 

 and Karroo. 



31. Saxicola castor. (Plate XXXVIII. fig. 2.) 



Saxicola castor, Hartl. P. Z. S. 1865, p. "47. 

 Adult male. Upper parts dark ashy grey ; rump and upper tail- 

 coverts white ; wings and four central rectrices dusky black ; outer 



16* 



