Poliohierax semitorquatus deckeni Zedlitz, Journ. für Ornith., vol. 62, No. 4, October 1914, p. 675.= Polihierax semitorquatus castanotus Heuglin, 1860
Syntype : Male ad., Afgoi, Southern Somaliland. 19. II. 1911. Coll. O. von Zedlitz. (C. Müller leg.). No. 4697. - Measurements of type : wing : 113 mm.; tail : 75 mm.; culmen from cere : 11 mm.; tarsus : 26 mm.Click on the picture for enlargement.