172 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



Family Sylviidie. 



144. Acrocephalus arundinaceus (Linn.). 



Turdus arundinaceus Linnaeus, Systema Naturae, zoth ed., I. 

 (1758) p. 170. 



? , Dec., Lucania. 



i specimen without data. 



145. Cisticola chubbi Sharpe. 



Ibis, 1892, p. 157. Mt. Elgon, British East Africa. 

 9 , Nov., Nairobi. 



146. Cisticola robusta nuchalis (Reich.). 



Cisticola nuchalis Reichenow, Ornithologische Monatsberichte, 

 1893, p. 61. Kagera. 



d\ Nov., Nairobi. 



The measurements of this skin are: Wing, 69 mm.; tail, 50 mm.; 

 tarsus, 26 mm. There are no black streaks on its sides, and in all 

 particulars it conforms to the original description of C. ambigua 

 Sharpe,* which appears to be a synonym of nuchalis. 



See REICHENOW, Vogel Afrikas, III. p. 555; SHARPE, Ibis, 1901, 

 p. 60, remarks on nuchalis and ambigua; -NEUMANN, Journal fur 

 Ornithologie, subspecies of robusta. 



147. Cisticola lugubris Ruppell. 



Neue Wirbelthiere zu der Fauna von Abyssinien. Abyssinia. 



cT, Oct., Nairobi. 



d\ d\ Dec., Lucania. 



?, 9 , Kijabe. 



The crown of the Nairobi specimen is mars brown with indis- 

 tinct stripes of dusky. The feathers of the back are black with lat- 

 eral margins of vinaceous-cinnamon, and the outer margins of the 

 remiges are cinnamon-rufous. This bird is in the plumage described 

 by Neumann as C. I. suahelica^, from German East Africa. The 

 other four specimens have the crown mainly dusky, the feathers 

 being bordered with mars brown. The feathers of the back are 

 streaked with blackish brown and bordered with gray. The outer 

 margins of the remiges are broccoli brown. In dimensions and in 



* Bulletin, British Ornithologists, Club, XI (1900) p. 28. 

 t Journal jur Onithologie, 1906, p. 272. 



