30 



MR. R. TRIMEN ON A NEW ROLLER. 



[Jan. 20, 



exhibit the typical specimen (Plate III.), is not very nearly allied to 

 any other species of the genus, and must be pronounced to be a most 

 distinct and well-marked member of the group of true Tyrannus. I 

 cannot much improve upon my published diagnosis of this bird, but 

 may add, in reply to Mr. Ridgway's remark, that the tail-end is nearly 



Fig. 3. 



Wing-end of T. niveigidaris, from below. 



square, the two outermost rectrices being not more than •] inch 

 shorter than the middle ones. The cinereous plumage above is 

 tinged with olive. The tail is uniform black, with only very 

 narrow light margins at the extremities. The five outer primaries 

 (fig. 3) are slightly attenuated at their extremities, but not any thing 

 like to the extent that prevails in T. melancholicus and its allies. 



Besides the single example of T. niveigularis in my own collection 

 (obtained by Fraser at Babahoyo, Ecuador), I have only seen two 

 other skins. These are both in the collection of Messrs. Salvin and 

 Godman. One of them was procured by Mr. C. Buckley at Intaj 

 in Ecuador ; the other was purchased from a dealer, out of a collection 

 coming from the same country. 



2. On a new Species of Roller {Coracias) from the Zambesi. 

 By Roland Trimen, F.L.S., F.Z.S., &c., Curator of the 

 South- African Museum^ Cape Town. 



[Eeceived January 9, 1880.] 



Dr. B. F. Bradshaw, who has lately returned to Cape Town after 

 six years' travel in the interior, formed a considerable collection of 

 bird-skins, chiefly in the neighbourhood of the Zambesi at the 

 junction of the Tschobe, and succeeded in bringing it down in good 

 condition. As he proposed to dispose of the collection, he permitted 



