in Uganda and on the Upper Congo. 285 



Iris dark hazel; bill and feet black. 



This example of the Blue-throated Brown Sun-bird seems to 

 have the bill slightly shorter than in West-African specimens. 

 The culmen from the anterior margin of the nostril measures 

 0*69 inch; while in males from Camaroon it varies from 0'7 

 to 72, in males from Fernando Po from 0*75 to 0*79, and 

 in males from Gaboon from 0'71 to 0'79. Four males from 

 Fantee have the bill 0*82 ; and in one male from Angola it 

 measures 0'8, It thus appears that examples from Fantee 

 have the longest bill, and that the specimen from the Upper 

 Congo (Kasongo District) has the shortest. The wing- 

 measurements shew little variation ; in the present specimen 

 the wing measures 2'65 inches. 



Anthothreptes carruthersi. (Plate V.) 



Anthothreptes carruthersi Grant, Bull. B. O. C. xix. 

 p. 106 (1907). 



Nos. 5118, 5124, 5125. a-c. S ? • West of Lake Tan- 

 ganyika, 3000-4000 ft., 2nd & 3rd Jan. ( Types of the species.) 



Iris dark hazel; bill and feet black. 



This handsome Sun-bird is evidently most nearly allied to 

 A. anyolensis Neumann \_cf. Orn. Monatsb. xiv. p. 67 (1906)], 

 which I had overlooked in my original description of it. 

 Through the kindness of Mr. Rothschild, I have been able 

 to examine the type of this species, which was procured 

 in Angola by Dr. W. J. Ansorge. A. carruthersi appears 

 to differ from it chiefly in having the long downy feathers 

 of the rump (below the metallic peacock-blue patch) widely 

 tipped with white, and the buff wash on the fore-ueck, breast, 

 and the rest of the uiulerparts much richer and darker. 

 Both species have the same golden-yellow pectoral tufts, and 

 in this respect difl:'er from the allied forms A. /onffuemarii Sic, 

 which have the pectoral tufts sulphur-yellow or pale chrome- 

 yellow. In A. carruthersi and A. angolensis the nape is sooty 

 black, interrupting the metallic purple crown and mantle, 

 which are confluent in A. longuemarii and the allied forms. 



The female is much like that of A. longuenun'ii, the belly 

 and under tail-coverts being sulphur-yellow. 



SER. IX. VOL. II. X 



