POGONORHYNCHUS LEUCOCEPHALUS. 
(THE WHITE-HEADED BARBET.) 
Laimodon leucocephalus 
Fogonorhipu'hus 
(1853) Defil. Eev. et. Mag. de Zool. p. 291. 
(1859) Verreaux, P. Z. S. p. 895. 
(1861) Heuglin, Ibis, p. 123, pi. 5, fig. 2. 
(1863) Goffin, Mus. Pays Bas, Bucc. p. 4. 
(1868) G. E. Gray, Cat. Brit. Mus. Oapit. p. 2. 
(1869) Heugliu. Ornith. Nordost. Afrikas, t. XXVII. 
P. sexibus simHibus : supra terrioolor : capite, gutture, pectore et uropygio niveis. 
Hah. in Africa orientali. 
Sexes alike ; entire head, neck, a transverse band across the wings, throat, breast, 
upper and lower tail-coverts snow white; rest of the plumage umber brown; wing-coverts 
and abdomen streaked with white; bill black, armed with two teeth; rictal bristles stiff 
and not numerous, white ; irides brown ; orbital skin dusky violet ; legs and feet blue- 
black ; wing ^ ; tail 2 2-10. 
HahUat Eastern Africa, Nubia, White Nile (Brun-Rollet), Bongo {Heuglin). 
This Barbet is the most sombre-plumaged of the genus Pogonorkynchus, and is remark- 
able for its pure white head, throat, and breast, which characteristics make it distinguish- 
able at a glance from its congeners. It is also the only member of the whole family which 
has white rictal bristles. According to Yon Heuglin there is a streak of fine sulphur- 
yellow over the eye, which it loses after death. This we omitted in the accompanying 
plate, as we observe that Von Heuglin has not painted it in his figure in the " Ibis ;" we are, 
therefore, unable to determine with certainty the position or exact colour of it, and it can 
hardly be of much importance, as the only writer who has called attention to it has not 
shewn it in his own drawing. It was described by the above author in a paper on the 
