of North-Eastern Africa. 127 



alaribus albidis : iride umbrina : rostro et pedibus plumbeo- 

 nigricantibus : long, tota 4-10, rostri a fronte 07, alee 3-9, 

 caudse 1*9, tarsi 0*7'3 poll, et lin. Gall. 



This variegated bird is the smallest of the species of Pogono- 

 rhynchus in N.E. Africa. The forehead and top of the head are 

 bright scarlet, the face round the ears, neck, and wing-coverts 

 shining black. A band over the eye and along the head brim- 

 stone-yellow in front and pure white behind. The middle of the 

 neck is spotted with white. The rest of the upper surface is not 

 of so bright a black as the neck. The scapularies generally on 

 the outside are broadly bordered with white ; the back of the 

 neck and upper wing-coverts are spotted with yellow ; the wings 

 and tail are bordered on the outside with pale yellow ; the lower 

 back and upper tail-coverts are deeply tinged with greenish 

 yellow, so that the dark ground-colour is hardly perceptible. 

 The wing-feathers below are edged with white, more broadly 

 towards their bases : the lower side is brighter than the upper, 

 as is likewise the case with the tail ; the under surface is whitish, 

 tinged with yellow about the breast and belly. In young birds 

 the under tail-coverts along the shafts are shaded with greyish 

 black. 



While both the preceding species are spread from 10° N.L. 

 southwards along the explored course of the White Nile, P. dia- 

 dematus appears to have a more westerly range. The numerous 

 examples that have passed through our hands wxre all collected 

 westward of the Bahr el Abiad in the districts of Gog, Djak, 

 Djar, &c., between 7° and 8° N.L., and on the river Bahr el 

 Ghazal. The food of this species consists of insects, berries, and 

 fruits. 



P. diadematus has, like P. hifrenatus, a loud and lively note, 

 deep and melodious. 



4. Trachyphonus squamiceps. (Plate V. fig. 4.) 

 T. margaritato affinis, sed differt, statura multo miuore, facie 

 et vertice flavo-rufescentibus ; tectricibus caudse superi- 

 oribus vivide flavis ; capite (mento excepto) collo et pectore 

 chalybseo guttatis : nucha albida, nigricante variegata : iride 

 brunnea : rostro cinerascente-carneo : pedibus plumbeis. 



This little species much resembles in size, structure, and 



