24 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 70 



90. TROCHALOPTERON ELLIOTI YUNNANENSE Rippon 



TrocJialopterum ijunnanense Rippon, Bull. Brit. Orn. Club, vol. 19, 1906, 

 p. 32 (Yangtze River, W. Yunnan). 



A good series of adults and immatures from Nguluko, 9,000 feet, 

 April; Likiang Plain, 9,000 feet, April 14; Likiang Mountains, 

 10,000-15,000 feet, April-September; between Likiang and Gan- 

 haitze, 10,000 feet. May ; Bayiwua, 10,000 feet, May ; between Dyina- 

 loko and Bayiwua, May ; Lameko Mountain, north of Lashipa, July. 



The above series is considerably lighter below than what I take to 

 be T. e. ellioti^ and lacks to a great extent the white edging to the 

 feathers of the throat and chest, and the central tail feathers are 

 gray with little or no yellow as a rule. 



My disposition of this form does not agree with the original 

 diagnosis; it may be Rippon's description really applies to the pre- 

 ceding race. Anyway the form is not w^ell marked and the dis- 

 tribution as worked out above hard to understand, unless this is a 

 form confined to the high mountains and the form found in the 

 Mekong w^atershed and the western border is unnamed, but for the 

 present I prefer to leave the matter in abeyance, as the differences 

 may be seasonable. 



Young about half grown in the series, taken in July, resemble the 

 adult, except the throats, pileum, and ear coverts are darker, the 

 central tail feathers orange-citrine, and the malar stripe is buffy. 

 Two immature specimens of adult size taken in August and Septem- 

 ber still retain these characters, but not in so pronounced a form. 



91. TROCHALOPTERON AFFINIS OUSTALETI (Hartert) 



lantliocinela affims oustaleti Hartert, Vogel palaai-k. Fauna, vol. 1, Heft 

 5, 1909, p. 633 (Ts^kou, Yunnan). 



A fine series from Likiang Mountains, 12,000 feet, April-August; 

 Wheihsi, Mekong Valley, October; Mountains near Yangtza, Me- 

 kong Valley, November; Hofuping Mountains, Mekong Valley, 

 November; forest of Youngning, February; forests of Mill, S. W. 

 Szechwan, February. 



Specimens with the top. of the head brownish instead of black 

 are mostly marked as females by the collector, so I imagine this 

 is a sexual or age character. 



I have only one specimen of T. «i. Mythi^ a male from near 

 Kiating, Szechwan, for comparison. It is considerably smaller than 

 males in the above series and lacks the gray patch on the sides of 

 the neck, otherwise it is very similar in color. 



