40 Mr. C. H, B. Grarit on a Collection of 



The adults are in good dress. The immature bird is an 

 moult and still retains a few feathers of the young dress. 

 The young bird ds also starting to assume the :adult 

 plumage. 



Total length in flesh : c? 8^ & 8 inches ; ? 8 & 7-2 

 inches. Wing: (? 113 & 107 mm. ; ? 101 & 102 mm. 



In naming these birds I have had to examine the whole 

 series in the National Collection ; and I agree with 

 :Mr. Sclater {cf. Ibis. 1912, p. 35) that there are no real 

 distinguishing characters between eastern and western and 

 southern specimens ; at least in colour. 



Measurements of the wing give the fallowing results : — 

 West Africa, S 105-102 mm. : ? 99-98 mm. East Africa, 

 (? 115^104 mm. ^ ? 111-102 mm. South Africa, S 11)0- 

 105 mm. ; ? 109-106 mm. 



Certainly the west African birds are rather smaller than 

 east and south African specimens, and should perhaps be kept 

 separate, though, as only four specimens are available, it 

 is possible that with a larger series the measurement of 

 105 mm. would be exceeded. 



The single female specimen from Lake Ngami has the 

 wing 118 ram., though it corrcsj)onds in colour with the rest 

 of the series. 



The named races of this Dove are as follows : — 

 Turtiir chalcospi/os chalcostpilos Wagl. Syst. Av., Col. sp. 83 : 

 Senegal. 

 „ ^, erlangeri Rchw. J. f. O. 1902. p. 134: 



Angola. 

 „ „ ^•olkmanni Hchw. J. f. O. 1902, p. 134 : 



Damaraland. 

 „ caffra Rchw. J. f. O. 1902, p. 134: 



S.E. Africa. 

 ^ „ somalica Erl. J. f. O. 1905, p. 134.: 



South Somaliland. 

 „ ^, «cawMmfl Oberh. P. U.S. N. M. 1905, 



p. .845: Mt. Kilimanjaro. 

 T agree with Obei'holsor that T. c. erlangeri is a syuonym 

 ol" T. c. cJui/cosj/i/os. 



