Vol. IX 



1909 



■ 1 Wkatherill, Description of a New Pseudogerygone. 27 



by a broad band of black, basal half brown ; each feather, with 

 the exception of the two central ones, which are brown, has a 

 large white spot near the extremity of the inner web ; the two 

 outermost feathers have two white spots, which are separated 

 by a strip of brown running along the edge of the quill. Eye- 

 ring, feathers under the eye, lores, and a line above the eye 

 grey. In front of the eye is an indistinct blackish spot. Under 

 surface ashy-white, lighter on the throat and under tail coverts. 

 Thighs grey, flanks ashy-grey, under wing coverts and auxiliaries 

 white; quills white below, becoming darker near the tips. Under 

 surface of the primaries and secondaries whitish along the edge 

 of the inner web. Bill and feet black, iris red. 



Young have the eye-ring, a line above the eye, lores, feathers 

 below the eye, and the edges of the primaries and secondaries 

 suphur-yellow. 



Measurements of an adult male in flesh — 



Totallength 1 14 millimeters 



Culmen ... ... ... ... ... 10 „ 



Wing 56 



Tail 45 



Tarsus ... ... ... ... ... 20 „ 



Differs from Pseudogerygone fusca, with which it has been 

 generally confounded, in the following characters : — 

 Flanks and under tail coverts washed with buff; feet 



and legs weak ; size small : length (in millimeters), 



96.5; culmen, 8.45; wing, 48.35; tail, 43.20; 



tarsus, 16.50 fusca. 



Flanks ashy-grey ; under tail coverts white ; feet and 



legs strong; size large: length(in millimeters),! 14; 



culmen, 10; wing, 56; tail, 45 ; tarsus, 20 ... cantator. 

 The nest is a strongly built, compact structure, of oval shape, 

 and abruptly narrowing to a long, slender appendage ; it is 

 suspended from one or more slender twigs, round which the 

 material forming the roof is neatly and strongly woven ; the 

 entrance is protected from the weather by an overhanging flap, 

 similar to the eaves of a house. It is composed externally of 

 delicate fibrous bark, fine roots, and dry grasses, firmly bound 

 together by spiders' webs, and almost invariably ornamented 

 with the cocoons of those insects ; internally it is lined with 

 feathers, thistle-down, and other soft material. It is most 

 frequently suspended from the end of a mangrove bough over- 

 hanging the water. Total length 1 1 inches, about 5 inches of 

 which constitute the appendage; diameter 3 inches at the widest 

 part ; entrance circular, i inch in diameter. 



Eggs — Clutch, three; long oval in shape; texture of shell 

 fine ; surface slightly glossy. Colour pale pink ; some speckled 

 all over with reddish-brown spots ; others with the spots forming 



