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Show 1874.] THE GENUS SAXICOLA. 235 grey than the back, and the interscapulary feathers have dark shafts, there are also dark shafts on some of the lesser wing-coverts near the carpus. W e were at first disposed to look upon this form as the female of S. leucomelana ; 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; chin whitish; abdomen and under tail-coverts white; ear-coverts pale hair-brown. Culmen 0-8, wing 3*85, tail 2*6, tarsus PI5. Hab. South Africa. Vieillot, it is true, used the same name (Enanthe cinerea in a previous 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 POLLUX. (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 broad 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 075, 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* |