— 270 — 



S m e r e n , V. G. L. van. 



Descriptions of new species and subspecies of African birds. 



[Bradornis murinus suahelicus, Melaeornis lugubris ugandae.) 

 Bull. Brit. Orn. Club, vol. XLI, 1921, pp. 106-106. 

 Descriptions of new East African forms. 



[Pentheiria laticauda suahdica, Centropus sitpercilosus intermedius.) 

 Ibidem, vol. LXI, 1921, pp. 121-126. 

 Stigler, Robert 



Eassenphysiologische Studien in Uganda. 



Vortr. d. Ver. zur Verbr. naturwissenschaftl. Kenntn. inWien, 59. Jahg., 

 Heft 9, 1919. 

 Stone, "Witmer 



On a collection of birds from British East Africa obtained by Gr. George 

 L. Harrison, Jr. 



Proc. Acad. Nat. Scienc, Philadelphia, 1905, pp. 755—782. 

 Stresemann, E. 



Avifauna Macedonica. Die ornitbologischen Ergebnisse der Forschungsreisen 

 unternommen nach Macedonieu durch Prof. Dr. Doflein und Prof. L. Miiller- 

 Mainz in den Jahren 1917 und 1918. 



Mviachen 1920. 

 Sollen Subtilformen benannt werden? 



Journ. f. Orn., 1919, pp. 291-297. 

 Stuart Baker, E. C. 



The value of subspecies to the Field Naturalist. 



Bull. Brit. Orn. Club, vol. XL, 1920, pp. 80-87. 

 Swynnerton, C. F. M. 



On the coloration of the mouths aud eggs of birds. 

 Ibis 1916, pp. 264-294, pp. 529-606. 

 '^T h e Red Book" 1919. The "Standard" British East Africa and Uganda 

 handbook and directory. 



Compiled by the "East African Standard". 

 Nairobi and Mombasa 1919. 

 Z e d 1 i t z , 0. Graf. 



Meine ornithologische Ausbeute in Nordost-Afrika. 



Journ. f. Orn., 1910, pp. 290-394, pp. 731-807. 

 Nachtrag zu „Meine ornithologische Ausbeuto in Nordost-Afrika". 



Ibidem, 1911, pp. 591-613. 

 Revision des Genus (Jamaroptera. 

 Ibidem, 1911, pp. 328-345. 

 Beitrag zur Systematik afrikanischer Vogelformen. 



1. Serinu6 awyo/ois/s-Gruppe. 



2. Estrtlda erythronota-Qvup^e. 



3. Uratginthus cyanocephalus-Grup^e. 



4. Calamonastes si'm/jZe.T-Gruppe. 

 Orn. Monatsber., 1912,- pp. 74—79. 



Das Siid-Somaliland als zoogeographisches Gebiet. 



Journ. f. Orn., 19'4, pp. 608-678; 1915, pp. 1-69; 1916, pp. 1-120. 



