270 Capt. G. E. Shelley on the 



Very similar to T. calva, which it resembles in size, nudity 

 of the forehead, the grey collar at the base of the hind neck, 

 the vinous and yellow on the wings, the thighs being bright 

 yellow, and in the under tail-coverts ; but differs in the head, 

 neck, and chest being yellower, in the olive parts of the back 

 and wings being also yellower, and in the tail being above 

 olive-yellow instead of grey, and ending in a broad yellowish- 

 buff terminal bar ; the iris, bill, and legs are probably simi- 

 larly coloured to those of T. calva. Total length 9-2 inches, 

 culmen from the frontal feathers 0*8, wing 6*15, tail 3-5, 

 tarsus 0*9. 



Hab. E. Africa, from Lamo to Matabele Land. 



My description is taken from a specimen collected by Sir 

 John Kirk at Lamo. Mr. Sharpe, by error, in his original 

 description, gave the culmen as 1-8 inch instead of 0-8. I 

 have also examined specimens from Mombas {Wakefield), 

 Pangani {Kirk), Zambesi {Bradshaw), and Matabele {Oates). 

 In these the length of the wing varies from 5*7 inches 

 to 7"2. Prof. Barboza du Socage (Orn. Angola, p. 379) 

 observes that some specimens from Quango, Biballa, and 

 Humbe differ from his typical T. calva in their yellower 

 colouring, and may, I think, possibly refer to T. wakefieldi ; 

 but I have not seen the specimens, and the author does not 

 remark on the colouring of the tail. The greenish-yellow 

 colouring of the upper surface of the tail in this species is, 

 I consider, the best-marked character for its separation from 

 the grey-tailed T. calva. 



9. Treron delalandii. 



Treron australis, Gray (nee Linn.), List Spec. Brit. Mus. 

 iii. 1844, p. 3, pt. 



Vinago calva, Verr. (nee Temm.) Rev. et Mag, Zool. 1851, 

 p. 423 ; Jard. Edinb. New Phil. Journ. n. s. ii. 1855, p. 246; 

 Bianc. Spec. Zool. Mosamb. fasc. xvi. 1865, p. 400. 



Treron nudirostris, Licht. (nee Swains.) Nomencl. Av. 

 1854, p. 82. 



Phalacrotreron delalandii, Bp. Compt. Rend, xxxix. 1854, 

 p. 872; id. Icon. Pig. 1857, pi. 1 ; Ayres, Ibis, 1880, p. 109, 

 Transvaal. 



