8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 10/ 



strongly ruf escent ; the under parts more heavily washed with a richer 

 (sometimes almost ruf escent) buff. 



From P. r. chamelum immediately separable by its very much 

 warmer coloration above and below. 



From P. r. pectorale distinguished by the much paler, less chestnut, 

 rufous of the front, crown, and nape, and by the much lighter brown 

 of the remaining upper parts. 



Range. — Northeastern Assam (Lakhimpur District south of the 

 Brahmaputra River)*. 



Specimens examined. — Assam : Lakhimpur District : Dibrugarh 

 (i male, i female), Margherita (ii males, 5 females). 



Remarks. — This race is named for S. Dillon Ripley, who collected 

 the specimens of pectorale that confirmed the distinctness of the 

 Margherita population and who has sent me valuable information 

 on the series of Pellorneum riificcps in the British Museum. 



8. PELLORNEUM RUFICEPS STAGERI, new subspecies 



Type.— U.S.'N.M. No. 377762, adult male, collected at NTon 

 Village (on the left bank of the Irrawaddy, 15 miles north of My- 

 itkyina), Myitkyina District, Sagaing Division, Burma, on May 17, 

 1945, by Kenneth E. Stager (original number B-176). 



Diagnosis. — Similar to P. r. mandellii in having sharply defined 

 blackish-brown centers to the feathers of the uppermost back, but 

 differing in having the rufous of the forehead, crown, and nape deeper 

 in color (almost chestnut) ; the olivaceous brown of the remaining 

 upper parts somewhat darker; the central streaks of the feathers of 

 the breast and sides of the abdomen broader and more numerous. 



From P. r. pectorale distinguishable by having the front, crown, 

 and nape chestnut rufous (rather than rufous chestnut) ; the brown 

 of the remaining upper parts paler ; the under parts even more boldly 

 streaked and with the ground color (except in two individuals dis- 

 cussed below) palest buff. 



From P. r. ripleyi separable by having the rufous of the front, 

 crown, and nape darker (nearer to chestnut) ; the remaining upper 

 parts darker and more olivaceous, less rufescent (thus more clearly 

 demarcated from the color of the nape) ; the under parts even more 

 boldly streaked and with the ground color (except in two individuals 

 discussed below) palest buff. 



Range. — Northeastern Burma (Myitkyina and Bhamo Districts). 



Specimens examined. — Burma : Myitkyina District : N'Pon Vil- 

 lage (i male, i female), Tanga (i male), Washaung-Namaoyang 



