ZOSTERORNIS. 527 



Genus ZOSTEROEXIS Grant 1894. 



Bill slender and pointed; rictal bristles small, less than bill from 

 nostril; nasal opening oval with a large overhanging membrane; wing 

 pointed, not greatly curved, and slightly exceeding the tail ; rectrices 

 well developed; tarsi and feet slender, and moderate in length; tarsus 

 about twice the bill from nostril. Some species in this genus resemble 

 species of Mi.voniis, but in the latter there is no flap above the nasal 

 opening and the feathers of the back are long and fluffy. 



'•'This genus is most nearly allied to Cyanodcrma, but there is no naked 

 space aroimd the eyes, which, on tlie contrary, are encircled by a ring of 

 short white feathers perfectly similar to that of a true Zo.sterops. From 

 Mixornis it differs in having the nostrils long and covered by a large 

 membrane. The tail is composed of twelve feathers. The fifth primary 

 is slightly longer than the fourth and sixth; first, short, half the length 

 of the second." (Grant.) 



Species. 



u\ Outer tail-feathers not tipped with wliite. 



6*. Under parts heavily streaked with black striatus ( p. 527 I 



b-. Under parts not heavily streaked with black. 



c\ Larger : wing, 60 mm. or more ; forehead and sides of head chestnut ; 



cro\vn gray; under parts light yellow _ whiteheadi (p. 52St 



tr. Smaller: wing, 56 mm. or less: forehead and sides of face not chestnut; 

 under parts white. 

 d\ Forehead and crown brown with pale shaft-stripes : upper parts olive- 

 brown with indistinct jiale shafts; throat and chest gray with white 



shaft-stripes; rest of under parts white pygmaeus ( p. 529 ) 



dr. Head, neck, and breast reddish brown with white shaft-stripos. 



plateni ( p. 530 ) 

 «■'. Outer tail-feathers widely tipped with white. 



6'. Forehead, crown, chin, and throat not uniform in color. 



c*. Forehead and crown red-brown or auburn capitalis ( p. 530 ) 



(f. Forehead and crow^n black. 



rf'. Chin and throat lemon-yellow witli a patch of dull reddish brown on 



each side nigrocapitatus (p. .131) 



d". Chin and throat lemon-yellow, washed with reddish brown. 



affinis ( p. 532 ) 



b*. Forehead, crown, chin, and throat golden yellow: back and under parts 



washed with lighter yellow dennistouni (p. 520) 



505. ZOSTERORNIS STRIATUS Grant. 



STRIPED TREE BABBLER. 



ZostcroDiis striatus (iKA.NT. Bull. Brit. Orn. Club (1S94), 4, 2; Ibis (18!)5^ 

 111. pi. 4, fig. 1: WiiiTKHE.vn, Ibis (1899), 222 (habits). 



Zostcroniis striata Sh.\rpe, Hand-List (1903). 4, 51: McCkkcor and WoR- 

 CKSTER, Hand-Li.st (1906), S2. 



1 Aizon ( Whitehead) . 



"Male and female adult. — In general appearance this new species 

 ivsombles Mi.rorrii.<t montana Sharpe, from Blount Kina Balu. but it is 



