P0G0N0RHYNCIIU8 ROLLETI. 
(R O L L E T'S B A li B E T.) 
Pogonias rolleti - (1853) Defil. ; Eev. Zool. p. 290. 
(1854) Bonap. ; Consp. Vol. Zyg. p. 12. 
(1857) Hartl. ; Syst. Orn. W. Afr. p. 169. 
• (1859) Verr. ; P. Z. S. p. 394. 
Pogonorhynchus rolleti (1861) Heugl. ; Ibis, p. 123, pi. 5. fig. 1. 
(1863) Goffiii; Mus. P.-B. Bucc. p. 2. 
(1868) Gray ; Cat. Brit. Mus. Capit. p. 2. 
(1869) Heugl. ; Orn. Nordost-Afr. tab. xxvii, 
P. sexibus similibus : major : supra niger, dorso imo albo : gutture pectoreque nigris : ventre imo coccineo. 
Hah. in Africa orientali. 
Sexes alike ; general plumage shining blue-black ; middle of the abdomen and under 
tail-coverts rich red ; a large spot on the rump and the flanks snow-white ; bill pale greenish- 
yellow, bluish at the base, very powerful, deeply grooved, and strongly double-toothed ; 
orbital skin violet; irides brown; legs and feet bluish brown; wings 4""0, tail 3"-5. 
Hob. North-eastern Africa : Nubia, White Nile ( Verrecmx, Heuglin). 
This is the rarest species of the large subgroup of this genus, and difiiers from the other 
two by its black throat and breast. It is as large as P. dubius, but has not got the sulcated 
mandible ; the rictal bristles also are fewer in number. 
Von Heuglin gave a figure of this bird in ' The Ibis' (/. c), and a drawing of the head 
in his ' Birds of North-east Africa.' He also gives the following note : — 
" Found on the banks of the Upper Bahr-el-Abiad, where it is common, particularly on 
