IDOL] FROM LAKE llUDOLr AND THE NILE. 611 



has since ideutified with P. strepitans oi Eeichenow; and I think 

 that, on a comparison of the type, P. rufescens of Hartlauh (Orn. 

 Centralbl. 1882, p, 91) will likewise be found to be identical. 

 My P. pauper may also turn out to be the same ; bnt it is not so 

 rufous in tint and rather more of a vinaceous brown ; this difference, 

 however, may be only seasonal. 



PYClSrONOTUS DODSONI. 



Pycnoiiotus dodsoni, Sharpe, P. Z. S. 1895, p. 488 ; ElUot, Field 

 Columb. Mus. i. no. 2, p. 47 ; Peel, Somali-land, p. 317; Sharpe, 

 Hand-1. B. iii. p. 328 (1901). 



a, b,c. S; d. $ ad. Webi Eiver, Oct. 10, 1899. 



e. 2 ad. Lake Stefanie, Nov. 29, 1899. 



Akgya aylmeri. 



Argya aylmeri, Shelley, Ibis, 1885, p. 404, pi. xi. tig. 1 ; Elliot, 

 Field Columb. Mus. i. no. 2, p. 47 ; Peel, Somali-laud, p. 317 ; 

 Hawker, Ibis, 1899, p. 73. 



a. S ad. Webi Eiver, Oct. 15, 1899. 



This species seems to me to have a seasonal plumage, as 

 Dr. Donaldson Smith's specimen is so very much darker than 

 the types and Mr. Hawker's example from Daraweina. The chin 

 is nearly black, and the dusky bases to the feathers of the throat 

 and fore-neck are much more pronounced and have the edges sandy 

 buff, so that the whole appearance is much more scaly. The 

 colour of the abdomen and the brown of the upper surface 

 are much darker. 



Argya eufula. 



Argya rufula Heugl. ; Sharpe, P. Z. S. 1895, p. 488. 



a. $ ad. Magois country, Feb. 3, 1900. 



b, c. (S 2 ad. Magois country, Feb. 4, 1900. 

 d. 2 ad. Omin, March 1, 1900. 



Specimen d is paler above and below than the other three, 

 which agree with the series in the Museum collected at Lado by 

 Emin Pasha. The wing is given by me (I. c.) as 3-5 inches, and 

 this I find to be the largest dimension in the Lado sei-ies, the 

 wing ranging from 3*2 to 3*35 iu the five specimens before me. 

 In the female from Magois the wing is 3*4 inches, and in the Omin 

 bird 3*5, these dimensions approaching those of the true A. rubi- 

 ginosa, the wing of which is given by me {I. c.) as 3*8 inches. 



Cbateropus tenebeosus. 



Crateropus tenehrosxis, Hartl. Zool. Jahrb. ii. p. 312, pi. xii. fig. 4 

 (1887). 



a, b. S 2 ad. Fort Berkeley, March 13, 1900. 



This very distinct Qrateropus was discovered by Emin Pasha at 

 Lado. Hartlaub's description leaves no doubt as to the identifi- 

 cation ; but the species can hardly be recognized from his figure. 



