178 URZGINTHUS 
coverts; back, wing-coverts, edges of the quills, upper tail-coverts and the 
tail above deep olive tinted yellow; under surface of the tail and the greater 
portion of the quills dusky brown; under wing-coverts whitish ash, with the 
edge of the pinion deep yellow, flanks strongly washed with the same shade 
of yellow. ‘Iris brown; bill black; tarsi and feet slaty black.” Total 
length 4:6 inches, culmen 0:4, wing 2°3, tail 1:9, tarsus 0°65. g, 22. 5. 01. 
Krachi (Alexander). 
Hartlaub’s Olive-backed Waxbill ranges from Senegambia 
to the Albert Nyanza. 
The species is known, I believe, by seven specimens only ; 
one from the Gambia, in the British Museum, the type dis- 
covered by Beaudouin at Bissao; two collected by Mr. Boyd 
Alexander and Mr. Klose at Krachi on the Volta River; the 
type of Amadina sharpei, Nicholson, from Abeokuta, and a 
male and female obtained by Emin at Meswa and Buguera, 
on the western side of the Albert Nyanza. 
Genus X. URAIGINTHUS. 
Bill stout, as deep as broad at the nostrils, swollen at the base and 
sharply pointed ; culmen rounded, curved, and ending at the base in a right 
angle on the forehead; edges of upper mandible festooned; nostrils basal 
and hidden by the frontal feathers. Wing rounded; primaries 1 small, 
narrow and pointed, 2 and 5 of equal length, 3 and 4 longest. Tail strongly 
graduated, and longer than the wing. ‘Tarsi, feet and claws moderate. 
Plumage with some blue and no red; upper tail-coverts blue. 
Type. 
Ureginthus, Cab. Mus. Hein. i. p.171 (1851) . . . . JU. bengalus. 
Maripoza, Reichenb. Singy. p.6 (1863) . .. . . . U. bengalus. 
Granatina, Sharpe, Cat. B. M. xiii. p. 403 (1890) . . . U.granatinus. 
The genus is confined to Tropical and South Africa. The type species is 
well known in England as the Cordon-bleu, so I have adopted that name for 
all the members of the genus. 
aC 
