1901.] FEOM LAKE RUDOLF AJSD THE NILE. 613 



ErYTHEOPTGIA LErCOPTEEA. 



Erythropygia leucoptera (Eiipp.) ; Hawker, Ibis, 1899, p. 70 ; 

 Sharpe, antea, p. 306 ; Grant, Ibis, 1900, p. 170 ; id. & Eeid, 

 Ibis, 1901, p. 660. 



a. S ad. Akara country, Feb. 16, 1900. 



CossYPHA oMOEXsis. (Plate XXXVI. fig. 1.) 



Cossypha omoensis, Sharpe, Bull. B. O. C. xi. p. 28 (1900). 



a. c? ad. Omo Eiver, Dec. 22, 1899. (Type of species.) 



b. 2 ad. Mursu country, Dec. 29, 1899. 



r, d. 2 ad. Mursu country, Dec. 31, 1899. 



This species has the same squamated white head as C. giffardi 

 (Hartert, Bull. B. O. C. x. p. v, 1899; C. alhkapilla giffardi 

 Hartert, Nov. Zool. vi. p. 420), but differs in its much darker 

 chestnut under surface and tail, the outer feathers of the latter 

 having a black edging near the tip. 



Cossypha vertioalis. 



Cossypha verticalis Hartl. ; Sharpe, Cat. B. Brit. Mus. vii. p. 45 

 (1883). 



a. c? ad. Fort Berkeley, March 13, 1900. 



Not to be separated from Niger specimens, and identical with 

 one from Tamaja obtained by Emin Pasha. 



Cossypha heuglini. 



Gossyplia heuqlini Hartl. ; Shelley, B. Africa, i. p. 84 ; Jackson, 

 Ibis, 1901, p. 72. 



a. 2 ad. Omo Eiver, Dec. 30, 1899. 



CiCHLADUSA GUTTATA. 



Gichladusa guttata Heugl. ; Oust. Bibl. Haut.-Etudes, xxxi. 

 Art. 10, p. 6 (1886) ; Sharpe, P. Z. S. 1896, p. 484 ; Peel, Somali- 

 land, p. 318. 



a. Ad. Mursu country, Dec. 30, 1899. 



b. 2 ad. Magois country, Eeb. 3, 1900. 



c. d. (S 2 ad. Magois country, Feb. 7, 1900. 



These specimens are the true 0. guttata, and agree with one 

 from Lado collected by Emin Pasha. Those from Lamu and the 

 coast-region are somewhat smaller and much brighter rufous on 

 the quills, and have been separated as Cicldadusa rujipennis 

 {cf. Sharpe, Bull. B. O. C. xii. p. 35). 



Htpolais pallida. 



Hypolais pallida (H. & E.) ; Seebohm, Cat. B. Brit. Mus. v. 

 p. 82 (1881) ; Eeichen. A^og. Deutsch-Ost-Afrikas, p. 232 (1894); 

 Elliot, Field Col umb. Mus. i. no. 2, p. 46; Lort Phillips, Ibis, 

 1898, p. 408; Peel, Somali-land, p. 315; Grant & Eeid, Ibis, 

 1901, p. 647. 



a. 2 ad. Akara country, Feb. 18, 1900, 



