10. DRY'OSCOPDS. 149 



edgings to the inner web ; " bill black ; feet lead-colour ; iris 

 fuscous " {Finsch <Sf Hartl.). 



Adult female. Similar to the male, but not so glossy black, the 

 lower back grey instead of pure white, and distinguished at once by 

 its white lores ; the shouJdcr-patch of white not so distinct, the 

 inner webs of the feathers having more black on them ; under 

 surface of body ashy white, tiuged with ochraceous. 



Youiifj. Like the adult female, but browner ; the rump and under 

 surface of the body washed with ashy fulvous. 



Measurements : — 



Total 



length. Culmen. Wing. Tail. Tarsus. 



in. in. in. in. in. 



S .... 6-5 0-72 3-2 30 092 



c? . . . . fi-3 0-75 3-25 30 095 



S .... 6-5 0-7o 3-3 2-95 09 



c? .... 6-4 0-77 3-2 2-95 09 



2 .... 6-5 0-8 3-15 S-1 0-94 



2 .... 6-4 0-78 8-1 3-05 0-95 



$ .... 6-4 0-8 3-15 30 090 



Hah. South Africa. 



B. Smaller Race. 



In the more northern parts of South Africa D. cuhla seems to be 

 represented by a smaller and whiter race. 



Adult male. Yery similar to D. cuhla ; but besides its smaller size, 

 as shown by the following measurements, it differs from I), cuhla in 

 the following points : — The primary quills are very distinctly, the 

 secondaries and greater wing-coverts rather broadly, edged with pure 

 white ; entire under surface of body almost pure white, verj' slightly 

 tinged with grey on the flanks and sides of breast ; under wing- 

 coverts, axillaries, and edge of wing pure white, without the small 

 patch of black near the edge of the wing. 



Measurements : — 



Total 



length. Culmen. Wing. Tail. Tarsus, 



in. in. in. in. in. 



S . Damara Land . . 6-1 0-7 3-2 27 0-85 



cJ . Tete 60 08 305 2-45 0-05 



cJ . Tete 6-0 0-8 3-05 2-75 0-92 



cJ . Tete 6-0 0-75 3-05 2-7 0-85 



cJ . Mozambique . . 6-0 07 3-0 2-65 0-85 



Hah. South-western Africa, ranging across into the Zambesi and 

 Mosambique. 



Ohs. The specimen from Damara Land has the long wing and the 

 more greyish tinge of D. cuhla, but all the other marks characteristic 

 of the species described above. 



A. Larger Race. 



o. [ 2 ] ad. sk. S. Africa (Lmjard). R. B. Sharpe, Esq. 



b. 2 ad. sk. Knysna, Jan. 16, 1866 R. B. Sbarpe, Esq. 



(Anderssoii). 



