of North-Eastern Africa. 125 



2. T. SQUAiMiCEPs, Heugl. T. squamiceps, Heugl. Syst. Uebers. 

 d. Vog. N.-O. Afrika, no. 482. p. 47. 



Rare in the Steppes of the Kitsch-Negroes, on the western 

 shore of the Bahr el Abiad. It may be the same as T. marga- 

 ritatus, but I have never met with this species in Kordofan. 



I now add descriptions of the newly-discovered species, which 

 are represented in the accompanying Plate. 



1. POGONORHYNCHUS ROLLETI. (Plate V. fig. 1.) 



Coracino-niger, tergi macula, et hypochondriis pure albis, his 

 ex parte nigro-striolatis : remigibus fuliginoso-nigricantibus, 

 subtus, interne et basin versus pallidioribus, externe cora- 

 cino-limbatis : subalaribus cinereis, flexuram versus cora- 

 cinis : abdomine medio et crisso intense cinnabarinis : 

 orbitis nudis, violaceis : rostro valido, pallide virescente, basi 

 cserulesceute, maxilla bidentata, simpliciter sulcata, man- 

 dibula non plicata : vibrissis rigidiusculis nigris : iride 

 brunnea : pedibus plumbeo-fuscis : long, tota 10'3, rostri a 

 fronte 1*4, ab angulo oris 1*5, alee 4'15, caudse 3'15 poll, 

 et lin. Gall. 



This species is distinguishable from P. duhius (of Senegambia) 

 by important characters, such as the absence of red on the head, 

 and a different formation of the bill. The whole bird is nearly 

 entirely of a shining blue-black, with the exception of a large 

 white spot on the back, and the sides of the belly, which show 

 a few fine black markings, and some flame-coloured streaks to- 

 wards the breast. The middle and lower part of the belly is of 

 a lively cinnabar-red on a white ground; the wings are smoky 

 grey on the inner web, the feathers getting gradually lighter 

 towards the base. The under wing-coverts are likewise smoky 

 grey, becoming towai'ds the wing-margins bluish black. The 

 upper beak has on each side a single deep furrow, within which 

 the bristles are placed : the latter are about half the length of 

 the beak ; the colour of the beak is light greenish yellow, bluish 

 towards the base. The feet and nails ai-e greyish brown. 



The sexes are coloured alike, but the female is a trifle smaller 

 in dimensions. This species is rather numerous on the Upper 

 White Nile, particularly on the Sycamore trees, the fruit of 

 which supplies a favourite food for all the species of Capitonida, 



