— 49 — 



that the various tones of colour of the under surface is due to 

 individual variations, which is probably true, for I have in the 

 same month shot birds with a dark, brown-violet under surface, 

 others with a light greyish red belly etc. Some have the crown 

 and neck bright light-grey (the commonest state), others have these 

 parts dark greyish-blue (almost the same colour as the young bird). 



In the specimens from Elgon the wing -measurement for 

 cfcT is 235—236 mm., for 99 213—227 mm. In those from 

 the Nairobi regions the measurement for cfcf is 210 — 227 mm. 

 In spite of this difference in size between cfd^ I do not consider 

 that I am entitled to separate the Elgon specimens from the Kikuyu. 



Lonnberg has already shown (Birds coll. Swed. Zool. 

 Exp. B. E. A. 1911, p. 44-45) that C. a. arquatricula, — which 

 according to Oberholser should be the one occurring in 

 Central Africa — cannot be regarded as a form varying from 

 arquatrix, and a number of my specimens both from the Nairobi 

 regions and Elgon prove one thing, that the difference in size is 

 not a constant occurrence, whence Lonnberg's opinion is un- 

 doubtedly correct. 



A young 9 bird from Elgon, shot on the 6. 7., agrees rather 

 closely with the description of such a bird given by Lonnberg 

 (Arch. f. Zool. Band 9, No. 14, 1915, p. 3). Still the chin and 

 the feathered part of the mandible of the specimen in question 

 are quite rusty-brown and all the feathers of the throat are 

 bordered with rusty-brown. The length of the wing is 127 mm. 



Irides yellow-yellowish grey, bill and legs citron-yellow. 



Stigmatopelia senegalensis aequatorialis Erl. — Journ. f. Ornithol. 



1905, p. 118. 



Akuru . . . ki-kavirondo. 

 1 § ad. 22. 4. Lake Naiwasha. — 1 2 ad. 22. 8. Kisumu (Victoria Nyanza). 



This pigeon was very common around the shores of Lake 

 Naiwasha. The specimen from here has the following mea- 

 surements: Wing 132 mm. Tarsus 19 mm. 



Irides cofll'ee-coloured. 



Even at Kisumu the bird was one of the most common, 

 and I frequently saw it on the outskirts of the town, where it 

 ran about the roads looking for food. 



Wing 137 mm. Tarsus 19 mm. 



Irides dark-brown; culmen black; legs pale coral-red. 



Streptopelia semitorquata erythrophrys Sw. ? 



2 (5(5 ad. 11. 4. Ngong (near Nairobi) 7,000 feet. — 1 (5 juv., 1 (5 ad., 

 1 S ad. 22. 4. Kikuyu. — 2 <5(5 ad. 26. 4. Mombasa. 



In the coast-land at Mombasa this pigeon was one of the 

 commonest and was frequently seen in the cocoanut groves and 

 on the outskirts of the forests, fringing the open fields. 



4 



