78 BULLETIN 159, UNITED STATES NATIONAL MUSEUM 



Table 26. — Measurements of specimens of Pycnouotus simplex perplexus 



1 Measured in the flesh by the collector. 



PYCNONOTUS SIMPLEX AXANTHIZUS, new subspecies 



Subspecific characters .—Siiml&r to Pycnonotus simplex perplexus from 

 Borneo, but somewhat larger; with the dark brown areas of lower 

 parts somewhat less rufescent (more grayish), the Hght areas paler, 

 more clearly yellow (less buffy); upper parts averaging less brownish; 

 and iris white. 



Vescription. — Type, adult male, U.S.N.M. No. 174754; Bunguran 

 Island, Natuna Islands, South China Sea, July 13, 1900; Dr. W. L. 

 Abbott. Upper parts olive, rather brownish, but rump olive-brown^ 

 and upper tail coverts of the same color though darker; wings and 

 tail between clove brown and sepia, the wing-quills, greater and 

 median coverts, the rectrices more narrowly, edged exteriorly with 

 light brownish olive, the lesser coverts with bufi'y olive; sides of head 

 and neck brownish olive, the shafts of auriculars a little paler; sides of 

 breast olive brownish; most of under surface naphthalene yellow, 

 somewhat duller on the chin and throat, but sides, flanks, and centers of 

 the longest lower tail coverts, light olive-brown, the breast and jugu- 

 lum heavily washed with the same; thighs light oUve-brown tinged 

 with pale yellow; lining of wing straw yellow; "iris white." 



Geographic distribution. — Northern part of the Natuna Islands, 

 South China Sea. 



This race is apparently peculiar to the islands of Bunguran, Lin- 

 gung, Laut, and probably neighboring islands in the northern part of 

 the Natuna group, since the bird from Sirhassen Island is referable to 

 the Bornean race. It differs from Pycnonotus simplex halizonus, of 

 the Anamba Islands in somewhat smaller size, lighter, more brownish 

 (less greenish) upper parts, somewhat paler, more rufescent (less 



