94 



HIRUNDINID^. 



and mantle varied with white bases to the feathers ; wing-coverts 

 and quills blackish brown, the former slightly glossed with blue- 

 black on the margins ; rump and all the upper tail-coverts white, 

 washed with smoky brown, with dusky shaft-lines ; tail-feathers 

 blackish brown ; lores black, as well as the feathers round the eye ; 

 cheeks and ear-coverts white, the upper margin of the latter blue- 

 black ; under surface of body white, the throat tinged with reddish 

 buff; the sides of the body and flanks pale smoky brown ; thighs and 

 plumes of leg white ; under tail-coverts white, with distinct shaft- 

 lines of dusky brown ; under wing-coverts and axillaries dark smoky 

 brown, the outermost small coverts tipped with white ; quills dusky 

 brown below, paler along the inner web. Total length 4-6 inches, 

 culmen 0-3, wing 4-1, tail 2-05, tarsus 0-45. (Mus. H. Seehohm.) 



Obs. The typo of C. rvhiteli/i, Swinh., in Mr. Seebohm's collection, 

 differs from the bird described only in having the dusky shaft-lines 

 on the rump and upper and under tail-coverts less distinct, and in 

 wanting the rufescent tinge on the throat. 



Tail of Chelidon lagopus. 

 Hah. Siberia from the valley of the Yen-e-say eastwards, 

 breeding throughout South-eastern Siberia and Northern China, 

 occurring also in Turkestan. It probably winters in the Burmese 

 countries and Southern China. 



5. Chelidon albigena. 

 Chelidon albigena, Heugl. J. f. O. 1861, p. 419 ; id. Orn. N.O.-Afr. 

 i. p. 169 (1869) : Shdrpe, F. Z. S. 1870, p. 293; Dresser, B. Eur. 

 iii. p. 499 (1875). 

 Similar to C. iirhica, but differs in the throat being pure pale 

 dusky ash-colour, with a moustachial line of pure white, very dis- 

 tinctly indicated ; sides of breast, flanks, and under tail-coverts 

 delicately shaded with smoky grey ; outer webs of under tail-coverts 

 with conspicuous subterminal dusky spots, the shafts blackish ; 

 rump whitish, the middle feather of a dusky ash-colour and marked 

 with some duller spots ; tail emarginate, a little exceeding the wings 

 (to the extent of 2 lines) ; inner web of outer tail-feathers marked 

 near the base with a conspicuous spot of whitish ; bill black ; iris 

 dusky ; claws pale horn-colour. Total length 5", wing 3" 11'", 

 tail 2" 3i-"', tarsus 5"'-8, bill from front 2"'-8. {Heuglin.) 

 Hah. Bogos Land, N.E. Africa. 



