86 Proceedings of the Biological Society of Washington. 



chaetura black margined with the blue of the wing edgings; "bill black; 

 iris dark brown." 



Measurements of type. — Wing, 70 mm.; tail, 58.5; exposed culmen, 12; 

 tarsus, 18. 



Geographic distribution. — Malay Peninsula and southern Tenasserim. 



Cyornis banyumas nesaea, subsp. nov. 



Chars, subsp. — Similar to Cyornis banyumas tickelliae from India, but 

 upper parts darker, and posterior lower surface much more extensively 

 whitish, the crissum entirely white. 



Description.— Type, adult male; No. 201395, U. S. Nat. Mus. ; Walgame, 

 Ceylon; May 3, 1894. Forehead and superciliary stripe dull yale blue; 

 upper parts deep delft blue, posteriorly rather lighter and brighter; upper 

 tail-covtrts between blanc's blue and dark orient blue; tail chaetura black, 

 the outer webs basally like the upper tail-coverts, but distally duller and 

 of a darker blue; wings chaetura drab, the primaries and secondaries edged 

 on their outer webs with the color of the back, the superior wing-coverts 

 dull gendarme blue; lores and nasal bristles dull black; sides of head, 

 neck, and of breast, like the cervix; anterior part of chin bluish black; 

 throat and posterior portion of chin, between cinnamon buff and antimony 

 yellow; jugulum and upper breast, between clay color and yellow ochre; 

 lower breast and abdomen white; sides and flanks, between warm buff 

 and light buff; thighs dull black, washed with dark blue, the feathers edged 

 with whitish; axillars light buff; under wing-coverts chaetura black, the 

 inner feathers edged broadly with white, and the outer feathers broadly 

 margined with the blue of the upper wing-coverts. 



Measurements of type. — Wing, 68 mm.; tail, 58; exposed culmen, 11.5; 

 tarsus, 16.5 



Geographic distribution. — Ceylon. 



Cyornis banyumas calocephala, subsp. nov. 



Chars, subsp. — Similar to Cyornis banyumas nesaea from Ceylon, but 

 upper parts much darker and less greenish; black chin area larger; throat 

 and breast much more deeply rufous; crissum and sides also deeply rufous 

 instead of almost pure white. 



Type.— Adult male; No. 180606, U. S. Nat. Mus.; Tanjong Tedong, 

 Banka Island; June 5, 1904; Dr. W. L. Abbott. 



Measurements of type. — Wing, 71.5 mm.; tail, 56; exposed culmen, 

 11.5; tarsus, 17. 



Geographic distribution. — Banka Island off the southeastern end of 

 Sumatra. 



Remarks. — This new form is apparently most closely allied to Cyornis 

 banyumas rufigastris (Raffles) from Sumatra, but from this race it differs 

 in its smaller size; much darker, more purplish blue upper parts and sides of 

 neck, and much more deeply ochraceous crissum and anterior lower parts 

 It is apparently confined to the island of Banka. 



