MONTICOLA RUPESTRIS. 219 
extensive synonymy. The last-named example was procured by 
Anchieta at Biballa in Mossamedes. Mr. Andersson’s notes on 
the species are herewith extracted from his “ Birds of Damara 
Land.” “The only places where I can recollect having caught a 
glimpse of this rarely seen Rock-Thrush are the Kaaru River, 
_ Ongari Ombo, near Jacongana, Okamaluté, and, lastly, the Omaruru 
River, where I obtained one specimen on October 30th, 1866, 
which I found hopping about amongst some stones thickly over- 
' grown with bush and coarse grass, and strewn with decaying wood. 
_ As soon as the bird perceived that it was observed, it immediately 
slipped into the thickest part of this tangled bush, and for some 
time I thought I had lost it; but after pelting it with stones it flew 
out and settled on the lower branch of a small acacia. I found, 
_ when shot, that its bill was very dirty, from which I infer that it 
seeks much of its food on the ground; its stomach contained only 
small whitish ants (not termites) ; its flesh was light coloured, and 
excellently flavoured. The iris was dark brown; the upper man- 
dible, dark horn colour, the lower livid lead colour; the tarsi pale 
brown, the toes a shade or two darker; there was a space under the 
eye quite naked; the tail when closed was of equal breadth through- 
out, but was cuneated when expanded.” 
This species is distinguished at a glance from the other members 
of the genus by its small size and white throat and chest, the sides 
of the breast being spotted with black. Total length, 6°8 inches ; 
culmen, 0°7; wing, 2°8; tail, 3-0; tarsus, 0°85; middle toe, 0:7. 
Fig. Sharpe, P. Z. S. 1869, pl. 14. 
203. MonricoLA RUPESTRIS. Cape Rock-Thrush. 
Petrocincla rupestris, Layard, B. 8. Afr., p. 129 (1867). 
This is the largest of the three South African Rock-Thrushes, and 
is to be distinguished not only by its greater dimensions, but by its 
brown back. 
We have seen it at Kalk and Simon’s Bays, and on Table 
Mountain, and have received it from Swellendam, Beaufort, Coles- 
berg, Graham’s Town and Eland’s Post. Victorin mentions his 
having obtained it in the Knysna district, in August, and Mr. 
Rickard has found it both at Port Elizabeth and Hast London. Mr. 
T. E. Buckley says that it was common in Natal, ‘“ where it may be 
