37 [Vol. xliii. 



2nd March, 1921, by N. Gyldenstolpe. Type in the R. Nat. 

 Hist. Museum at Stockhohn. 



Remarhs. Quite common in suitable localities along the 

 northern shores of Lake Kivu. 



Cryptolopha wilhelmi, sp. no v. 



Diagnosis. A very distinct form, apparently most closely 

 allied to Cri/ptolopha alpina Og.-Grant from Ruwenzori, 



General colour above brownish-olive [Ridgway), with a 

 slight greenish wash to the feathers of the back and mantle; 

 upper tail-coverts the same but somewhat lighter; whole 

 head and nape olive-brown, in rather marked contrast to 

 the colour of the back; scapulars like the back; lesser 

 wing-coverts brown, strongly margined and tipped with 

 greenish ; remaining wing-coverts similar but less distinctly 

 margined ; primaries dark brown, strongly margined with 

 olive-yellow on the outer webs ; secondaries the same, but 

 more distinctly and more broadly margined with olive- 

 yellow ; rectrices above dark brown, broadly edged with 

 olive-yellow and with blackish-brown shafts ; rectrices 

 below paler brown, with Avhite shafts ; some of the outer 

 tail-feathers narrowly tipped with white ; a tawny-buff 

 supercilium extending from the base of the nostrils to 

 some short distance behind the eyes ; in front of the eyes 

 a dark brown patch ; ear-coverts tawny-buff with paler 

 shafts; small feathers round the eyes paler buff ; chin 

 and throat light buffy-grey, becoming ashy-buff on the 

 fore neck and upper breast ; sides of the body and flanks 

 light brownish-ashy ; centre o£ lower breast, abdomen, 

 and under tail-coverts dirty whitish, the latter with a 

 creamy tint ; under wing-coverts pale buff, becoming 

 citron-yellow on the edge of the wing; axillaries and 

 thighs brownish-ashy ; quills below dark brown, paler 

 at the edge of the inner webs. 



Dimensions of type. Total length 126 mm.; wing 64 mm.; 

 tail 55 mm. ; culmen 9 mm. ; bill from gape 13 mm. ; 

 tarsus 21 mm. Iris dark brown. Bill : upper mandible 

 horn, lower mandible yellowish-horn. Legs brown. 



