256 CERTHIID.E. 



brown ; wings black, witb white edges to the feathers ; tail feathers black 

 with small white ends and with white edges to the outermost pair ; bill, 

 upper mandible horny brown, lower mandible and legs leaden grey ; iris 

 brown. Total length 51 inches, culmen 0'45, wing 2-95, tail 2-2, tarsus 0-75. 



The Rufous-throated Penduline Tit inhabits Masailand in 

 East Africa. 



On the Maeru mountain the late Dr. Fischer collected a 

 male and two females, and I cannot find any additional in- 

 formation regarding this species. 



Family VI. CEKTHIIDiE. 



Bill either short and stout or slender and long ; wing of ten primaries, 

 with the first or bastard primary well developed ; tarsus short, not longer 

 than either the middle or hind toe with claws ; claws sharply pointed and 

 curved, that of the hind toe the longest ; tail of twelve feathers (nearly square 

 in all the Ethiopian species). Sexes similar in style of plumage; nest cup- 

 shaped and either hidden in a crevice or exposed on a bough ; eggs spotted. 



KEY TO THE SUBFAMILIES. 



a. Bill stout and rather wide, coral red, shorter 



than the head or tarsus, and with the keel 

 slightly curved upwards ; rictal bristles well 

 developed Hi/posittiim. 



b. Bill slender, compressed at the sides, longer 



than the head or tarsus and with the keel 

 curved downwards ; no rictal bristles. 

 a 1 . Nostril opening elongated, placed in a 

 groove covered in above by a bare mem- 

 brane GerthiincB. 



b 1 . Nostril opening round and not placed in a 



groove FalculiincB. 



