36 BULLETIN 98, UNITED STATES NATIONAL MUSEUM. 



parts more whitish, the sides and flanks with much less ochraceoos. 

 Female very much paler, duller, and more grayish above than the 

 same sex of Cyornis banyumas pMlippinensis, with ochraceous of 

 lower surface lighter, and that of lower breast, sides, and flanks much 

 less extensive, the sides and flanks with very little; lores dull grayish 

 instead of white. 



Description. — Type, adult male, No. 171095, U.S.N.M.; Pulo 

 Jimaja, Anamba Islands, September 22, 1899; Dr. W. L. Abbott. 

 Sides of head and neck, with entire upper parts (except forehead) 

 rather light, grayish, indigo blue; forehead and short superciliary 

 stripe azure blue; lores and nasal plumes black; remiges and rectrices 

 grayish clove brown, all edged externally with the blue of the upper 

 parts; lesser and median wing-coverts cobalt blue; remaining wing- 

 coverts like the secondaries; chin and moustachial stripes deep blue 

 black; throat, jugulum, and upper breast, ochraceous; rest of lower 

 surface white, laterally washed with ochraceous; under wing-coverts 

 buffy white, the feathers centrally fuscous, the edge of wing beneath 

 fuscous mixed with whitish, buff, and blue; axillars buff; "bill black. 

 feet brownish lavender." 



The male of this new race differs from the male of Cyornis ha- 

 nyumas banyumas in somewhat lighter blue upper surface; in pure 

 white median posterior lower parts, including the crissum: and very 

 much less extensively ochraceous sides and flanks. The female 

 differs from that of Cyornis banyumas banyumas in the much more 

 bluish gray (instead of brownish gray) upper surface, the tail exter- 

 nally blue instead of dull ferruginous; and in practically pure white 

 instead of ochraceous abdomen and crissum. The male intergrades 

 in color with Cyornis banyumas banyumas through Cyornis banyumas 

 pTiilippinensis and Cyornis banyumas mindorensis Mearns; while the 

 female is intermediate between Cyornis banyumas pMlippinensis and 

 Cyornis banyumas banyumas, though nearer the former. A trinomial 

 seems best to express this bird's relationships.. 



There is considerably more difference between the sexes in this 

 form than in C. b. pliilippinensis, the female being relatively as well 

 as actually much paler and more grayish above. Two males (Nos. 

 171004 and 170961, U.S.N.M.) in part juvenal, part first autumn 

 plumage, differ from the adults of the same sex in having the throat 

 and chin whitish, the tawny of breast more or less mixed with black- 

 ish, this chiefly in the form of scale-like feather edgings; many of the 

 superior wing-coverts and some of the tertials with broad apical 

 spots of ochraceous; and the feathers of head and hind-neck with 

 broad shaft streaks or apical spots of tawny or ochraceous. Two 

 immature females (Nos. 170910 and 170967, U.S.N.M.) differ from 

 adult females in their paler anterior lower parts and duller, more 

 brownish upper surface. There is comparatively little individual 



