ART. 16. 



BIBDS FROM NORTH CELEBES RILEY. 



89 



This series when compared with a large series from north Celebes 

 (the type of Zosterops atrifrons came from Menado) has the throat 

 duller yellow, the chest grayer, the white eye-ring narrower, the 

 back more greenish, the black suborbital streak more diffused, and 

 the size larger. 



Zosterops subatrifrons^ from Peling Island, is described by Meyer 

 and Wiglesworth ®^ as having the throat clearer yellow and the breast 

 whiter than in Zosterops atrifrons atrifrons^ while in the present 

 race the reverse is the case, so it is unlikely they are the same. 

 Finsch ®^ places Zosterops siibatrifrons in the synonymy of Zosterops 

 atrifrons^ but whether he was justified in so doing, I am unable to 

 say without an examination of specimens from Peling Island. 



The measurements of the two series are as follows : 



Ten males, Zosterops a. atrifrons -. 



Eight males, Zosterops a. surda 



Ten females, Zosterops a. atrifrons 

 Ten females, Zosterops a. surda 



Culmen. 



mm. 

 10. 2 



n. 1 



10. 2 



n. 1 



173. PSEUDOZOSTEROPS STRIATICEPS (Riley ).'^3 



In addition to the type from Goenoeng Lehio, January 13, 1917, 

 the collection contains a good series from Toewo Mountain, Besoa, 

 November 1-3, 1917, and Rano Rano, December 10-27, 1917. 



The following is the original description : 



Above warbler green, the upper back with a few fine light yellowish shaft 

 streaks ; the top of head dark neutral gray with fine white shaft stripes ; f rons 

 and lores buffy white ; ear-coverts and cheeks lighter gray than top of head, 

 the white shaft streaks a little coarser ; throat and jugulum buffy white ; rest of 

 underparts lemon yellow ; flanks pyrite yellow ; wings the color of the back, 

 the primaries and outer secondaries chaetura drab, except on the outer margin ; 

 bend of the wing margined with light yellow ; imder wing coverts white with a 

 yellowish wash ; primaries and secondaries where they rest against the sides 

 of the body strongly margined on the inner web and basally with yellowish 

 white; tail chaetura drab washed and margined with the color of the back. 

 Wing, 63 ; tail, 45 ; tarsus, 16.5 ; middle toe, 10 mm. 



Remarks. — The type, from Goenoeng Lehio, is brighter, more yellowish above 

 and brighter below than the Rano-Besoa series. Judging from the description 

 and plate in Meyer and Wiglesworth" the above is closely related to 

 Lophozosterops squamiceps, from which it differs in lacking the terminal edges 

 of silvery gray to the feathers of the top of the head ; the throat buffy-white ; 

 the back of a different shade of green; the lower parts brighter yellow; and 

 there are other slight differences. 



81 Birds of Celebes, vol. 2, 1898, p. 490. 



<« Das Tierreich. 15 Lief. 1901, p. 34. 



^ Lovhozosteiops striaUoeps Riley, Proc. Biol. Soc. Wash., vol. 31, 1918, p. 1-57. 



" Birds of Celebes, vol. 2, 1898, p. 485, pi. 29. 



