i 
POLIOSPIZA CROCOPYGIA. 483 
Caconda in Benguela by Senor Anchieta. We have not had an 
opportunity of examining a specimen from South-western Africa, 
and transcribe the description published by Professor Barboza du 
Bocage in his “ Ornithologie d’Angolas.”’ 
Adult male.—Earthy brown above, {much paler below: the 
feathers of the crown marked in the centre with a blackish streak; 
a broad superciliary band, chin and middle of the throat pure white ; 
sides of the head blackish brown ; lower tail-coverts whitish ; quills 
_and tail-feathers brown, bordered with ashy grey; bill reddish 
brown, darker at the tip; feet livid; iris brown. Total length, 
5 inches; culmen, 0°45; wing, 3°4; tail, 2°4; tarsus, 0°65. 
Fig. Riipp. Neue Wirb. taf. 35, fig. 2. 
479. Pottosriza crocopra1a, Sharpe. 
Damara Yellow-rumped Grosbeak. 
At first sight this species might be taken for Crithagra albigularis 
of Smith, but it differs in the bright’ sulphur-coloured rump being 
common to both sexes, whereas in 0. albigularis the female has 
the rump uniform with the back. It was discovered by the late 
Mr. C. J. Andersson, who observes: ‘This species is sparingly 
met with in Damara and Great Namaqua Land; it is generally seen 
about rocks in the immediate neighbourhood of water, to which it 
resorts in small flocks in the morning and evening to quench its 
thirst. Its food consists of seeds and berries.” 
Above, pale greyish brown, the middle of the feathers darker, giving 
a striped appearance on the head, and mottled on the back ; lower part 
of the back, rump, and upper tail-coverts bright sulphur-yellow, the 
latter somewhat tinged with brown, owing to the basal portion of the 
feather being of this colour ; wing-coverts, quills, and tail-feathers 
dusky brown, edged with paler whitish brown; a superciliary line 
and a small stripe under the eye white; throat white, marked 
irregularly down the side and in the middle with dusky brown 
_ spots; ear-coverts, upper part of the breast, and flanks pale greyish 
brown; abdomen and under tail-coverts pure white; “iris dark 
brown ; the upper mandible very pale brown, and the lower still 
_ paler; the legs and toes slaty-brown” (Andersson). Total length, 
| 5'3 inches ; wing, 3°35; tail, 2-1; tarsus, 0°7. 
: The female is exactly like the male, but has the under wing-coverts 
not tinged with yellow. 
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