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Show 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 m y 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. niveigularis, from below. square, the two outermost rectrices being not more than *1 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 m y 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. O n a n e w Species of Roller (Coracias) from the Zambesi. B y R O L A N D T R I M E N , F.L.S., F.Z.S., & c , Curator of the South-African M u s e u m , Cape Town. [Received 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 |