NovrraTEs Zoologicae XXV. 1918. 353 



8. Treron calva brevicera subsp. nov. 



A form with a short naked cere or basal portion of beak, as in T. c. nudirostris, 

 occurs also in East Africa. Head and underside as bright as in T. c. nudirostris, 

 but the nuchal collar bluish or lavender grey and sharply defined. Wing 1G6- 

 179 mm. Outer edges of rectrices more or less washed with yellow. 



Type: 3 ad., Mo,schi, 13. iv. 1916. A. Buchanan coll. (Tring Museum). 

 " Length 12 inches. Iris lovely clear cobalt blue. Bill very pale whitish blue- 

 grey. Cere medium dull orange yellow. Feet pure coral red" (Buchanan). 

 " Iris bright bluish white. Cere orange ochreous, tip of bill white. Feet coral " 

 (Doherty). 



It seems that this form differs constantly from the forms of T. calva with 

 wide bare space in the colour of the cere. Unfortunately I have no certain 

 information about T. c. nudirostris. On many labels of IT. c. calva, ansorgei, 

 .and salvadorii the base of the bill is described as red, magenta red, bright 

 red, alizarine-carmine, scarlet, roth, scarlet lake, alizarme-crimson, but never 

 as orange-yellow or orange-ochreous ! 



We have m the Trmg Museum a pair shot by Captain A. Buchanan at 

 Moschi, at the foot of Mt. Kilimanjaro, and a male collected by Will Doherty on 

 the Escarpment, 8,500 feet, in January 1901. In the British Museum one of 

 us has exammed specimens from the Kilimanjaro (Johnstone), Athi River, 

 Machakos (Hinde), Matabato Hills (B. Percival), and Kikuyu (Crawshay). 

 Probably Mombasa specimens belong also to this form. Should it turn out 

 that T. c. brevicera or T. c. nudirostris occur together with forms with the very 

 wide bare space at the base of the bill, we should be obliged to recognize as 

 species T. calva and nudirostris, each with one or more subspecies. There 

 is mdeed a specimen of the nudirostris group from the Victorian NUe in the 

 British Jluseum, where also T. c. uellensis or a closely allied form with wide 

 naked forehead is found ! 



9. Treron calva sejuncta subsp. nov. 



A large form with widely naked space at base of forehead inhabits Portu- 

 guese Guinea. It is distinguished from its allies by a very yellowish green back 

 and underside. The head is rather apple-green, the collar dull grey, not so dis- 

 tmct and sharply defined as m T . c. sharpei, salvadorii, and brevicera, but not 

 quite so indistinct as in T. c. calva. Underside very bright yellowish, much as 

 in the more yellow specimens of poensis, but still yellower. The wmgs measure 

 154-166 mm. There are in the British Museum 3 adult males, 2 females, 

 and an immature bhd, all collected by W. J. Ansorge m 1909, the adult birds in 

 rather worn plumage, but clearly showing the above differences. This form 

 is nearest to poensis but still lighter and yellower green. 



Type : ^ ad., No. 52, Porto Mansoa, Portuguese Guinea, 9. v. 1909. " Cere 

 alizarin-crimson." W. J. Ansorge coll. (In the British Museum.) 



10. Treron calva subsp. 1 



Professor Oscar Neumann collected two Green Pigeons m western southern 

 Ethiopia. One, sexed c?, with large testicles, shot at Djiren in Djunma, 

 28. iii. 1901, another, also marked <J, testicles large, Uma River near Baka in 



