Birds of St. Thomas' Island. 109 



Alexander having obtained a series of both forms from 

 St. Thomas and Prince's Island^ I have had an opportunity 

 of closely comparing the two races. 



It is noticeable that the blue colouring of the back in 

 C. galer'ita is very different, being less bright and of a more 

 purplish blue than in C thomensis. 



Moreover, the underparts are much deeper chestnut in the 

 St. Thomas bird and lack the whitish belly of C. galerita. 

 A very pronounced character is that of the blackish- 

 bcspeckled lores and cheeks of C. thomensis, which in the 

 Prince's Island bird are practically uniform chestnut ; also 

 the base of the bill is always blackish, instead of uniformly 

 coloured as in C. galeriia. 



The two immature birds, Nos. 36 and 37, obtained by 

 Alexander bear out Count Salvadori's description. The 

 beak is black, the crown of the head and nape are similar to 

 the adult ; but the parts which are chestnut in the adult lurd 

 are in the young blackish brown, only shading into chest- 

 nut on the lower part of the belly and under tail-coverts. 



On comparing the young of the species with that of 

 C. galerita, the diffei'ences which exist are very remarkable. 

 In C. galerita young birds are very similar in plumage to 

 the adults and differ from them only in having the cheeks 

 and lores blackish and in the blackish colour of the bill. 

 The plumage of the young bird in C. thomensis has already 

 been described, and is entirely different from that of the 

 adult. 



Alexander remarks that it is not a common bird along the 

 river. 



33. *Agapornis pullaria. 



Agapornis pullaria (Linn.) ; Salvadori, Orn. Golfo d. 

 Guinea, ii. 1903, p. 35 ; Bocage, Jorn. Sci. Lisboa, 1905, 

 p. 73. 



a. S ad. (No. 71). Near Sao Thome. l.ii.09. 



^. cC ad. (No. 130). Zalma. 4. ii. 09. 



Alexander has no notes on this species. Apparently it is 

 not rare and is found on the island throughout the year. 



