COSSYPHA HEUGLINI. 227 
into white on the lower abdomen and under tail-coverts ; thighs, 
white; under wing-coverts also white, the outermost spotted with 
black ; wings, above ashy-brown, inclining to grey on the coverts, 
the least series being streaked with white, the outermost broadly 
edged with the same; primaries externally margined with white, 
much broader near the base, which is entirely white on these quills, 
so as to form a speculum ; tail, black, tipped with white, forming a 
small triangular spot on the centre feathers and gradually increasing 
towards the outermost, the external rectrix being white for its 
apical half. Total length, 7 inches; culmen, 0°65; wing, 3:2; tail, 
2°8; tarsus, 1:05. (Mus. Lisb.) 
211. CossypHA HEUGLINI. Von Heuglin’s Chat-Thrush. 
The characters which distinguish this from all the other Chat- 
Thrushes of South Africa are the following, viz., a broad white eye- 
brow extending along the sides of the crown to the nape, accom- 
panied by an orange-coloured throat. We have seen two examples 
from Angola, and, according to Prof. Barboza du Bocage, it has also 
been procured by Anchieta at Caconda in Benguela. 
Adult.—General colour above, grey, strongly marked with olive 
brown on the back and scapulars and shading off into orange on the 
‘rump and upper tail-coverts, the latter being bright orange; two 
centre tail-feathers, dark brown, the rest bright orange, the 
external one dark brown on the outer web; wings, dark brown, the 
feathers externally marked with grey, particularly distinct on the 
coverts ; crown of head, as well as the lores, feathers round the eye 
and the ear-coverts, black; over the eye a broad white stripe 
extending from the base of the bill to the sides of the nape; cheeks, 
sides of neck, and under surface of body, deep orange, paler on the 
abdomen ; round the hind-neck a faintly indicated orange collar. 
Total length, 7 inches; culmen, 0°75; wing, 3°45; tail, 3:0; 
tarsus, 1:2. 
Fig. Heugl. Orn. N. O. Afr. taf. 13. 
