78. CERCHNEIS. 445 



t. 2 ad. sk. Egy^rt. W. B. D. TurnbuU, Esq. [P. 



A:. cJ juv. sk. Egj-pt. W. B. D. Tumbull, Esq. [P. 



I. S ad. st. Tunis. L. Eraser, Esq. [C.]. 



m. S ad. sk. Tangiers, June 1871 R. B. Sharpe, Esq. [P.]. 



{Olcesse). 



o, p. Skeletons. Purchased. 



9, r. Skeletons. Zoological Society. 



19. Cerchneis amurensis. 



Falco vesper tinus, Schrenk, Reis. Amurl., Vog. p. 230 (1860). 

 Erythropus vespertinus, Swinh. Ibis, 1861, pp. 253, 327, et P. Z. S. 



1862, p. 315 ; Jerd. B. of Lid. i. p. 40 (1862); Swinh. P. Z. S. 1863, 



p. 260 ; Eirk, Ibis, 1864, p. 316 ; Htwie, Rough Notes, i. p. 106 



(1869) ; Jerd. Ibis, 1871, p. 243. 

 Falco vespertinus, var, amiu'ensis, Radde, Rets. Sibir. ii. p. 102, Taf. 1. 



figs. 1-3 (1863). 

 Hj'potriorcliis concolor, Gurney, Ibis, 1866, p. 127. 

 Falco amurensis, Homey. J. f. O. 1868, p. 251. 

 Erythropus amurensis, Gurney, Ibis, 1868, p. 41, pi. 2; Swinh. P.Z.S. 



1870, pp. 4.36, 448, 1871, p. 340, et Ibis, 1873, p. 96; Gurney, in 



Anderss. B. Dam. Ld. p. 17 (1872). 

 Tinnuiiculus amurensis, Gray, Hand-l. B. i. p. 23 (1869). 

 Falco raddei, Finsch u. Hartl. Viig. Ostafr. p. 74 (1870). 



Adult male. Above leaden black, a little paler on the lower back 

 and secondaries ; the greater wing-coverts and primaries clearly 

 washed externally with silvery grey ; tail greyish black above, paler 

 beneath ; under surface of body pale grey ; lower abdomen, thighs, 

 vent, and under tail-coverts bright chestnut; under wing-coverts 

 pure white ; cere, orbits, and feet dark orange, claws whitish ; bill 

 yellowish horn-colour, blackish at tip ; iris hazel. Total length 

 9-5 inches, culmen 0-75, wing 9, tail 5-3, tarsus 1-15. 



Adult female. Above dull leaden grey, inclining to blackish on 

 the interscapulary region, clearer on the scapulars, lower back, and 

 rump, all the feathers crossed by bars of black, nowhere very distinct ; 

 tail bluish grey, with narrow black bars, excepting the subterminal 

 one, which is much broader; quiUs brownish black, externally 

 washed vrith grey and barred with white about halfway up the inner 

 web ; crown of the head dull blackish, as also are the lores, feathers 

 round the eye, and a slightly indicated moustachial streak ; sides of 

 the face and neck, as weU as the throat, creamy white, unspotted ; 

 entire breast white, streaked with central blotches of black down 

 each feather, taking the form of bars on the flanks ; thighs, vent, and 

 under tail-coverts very pale rufous ; under wing-coverts white, spotted 

 with black. Total length 10-5 inches, culmen 0-75, wing 9-5, tail 

 5*3, tarsus I'l. 



Young. Brownish, the feathers indistinctly margined at the tip 

 with dull fulvous ; the lower scajmlars, inner secondaries, rump, and 

 upper taU-covcrts inclining to greyish, all tipped with fulvous and 

 barred with dull black ; tail grey, with distinct transverse bars of 

 black ; sides of the face and throat white, the nape also mixed with 

 white ; the lores and feathers of the eye, as well as the indistiiu't 



