394 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



1929; one male and one female, Nan, April 14, 15, 1930; one male and 

 two females. Ban Nam Kien, Nan, April 20-22, 1930; three females, 

 Aranya, July 13, 1930. One set of two eggs taken at Bangkok, 

 February 1, 1926. 



Not many of these specimens are from Peninsular Siam, but the 

 few available, those from southern and eastern Siam, differ little or not 

 at all from those from northern Siam. Delacour and Jabouille ^^ assign 

 all their specimens from French Indo-China to the present form. 

 This being so, the Siamese belong with it also. The only specimen 

 available of P. h. blanfordi is a female from Upper Burma in appar- 

 ently unfaded plumage; it is a much paler bird than any in the series 

 from Siam. 



This would make the range olP.h. robinsoni extend from the Malay 

 'States north through Peninsular Siam to northern Siam and east to 

 Indo-China. 



It may be that this is a poorly marked form, hardly worthy of 

 recognition, but my material is not sufficient to settle the question. 



Herbert^* says that at Bangkok the nesting season begins in 

 January and extends to the latter part of September, the hot weather 

 and the early part of the rains being the more general time. He de- 

 scribes the nest and eggs. 



PYCNONOTUS SIMPLEX SIMPLEX Lesson 



Pycnonotus simplex Lesson, Rev. Zool., 1839, p. 167 (Sumatra). 

 Microtarsus olivaceus Moore, in Horsfield and Moore, Catalogue of the birds 

 in the Museum of the Hon. East India Company, vol. 1. p. 249, 1854 (Malacca.) 



Dr. W. L. Abbott collected the following specimens in the Malay 

 Peninsula: Two males and two females, Trang (Lay Song Hong, 

 September 17, 30, and December 15, 1896; Chong, January 21, 1897); 

 one male and two females, Singapore Island, May 14-26, 1899; one 

 male, Tanjong Peniabong, east coast of Johore, July 24, 1901; one 

 female, Rumpin River, Pahang, May 29, 1902. He gives the soft 

 parts as: Iris white; bill black, pale at base of lower mandible; feet 

 fleshy brown, claws dark brown. 



The specimen from Chong, Trang, is a female and differs from the 

 rest of the series in having a slight oUve wash above; in being darker 

 below; and in having the under wing coverts chamois instead of 

 naphthalene yellow; size smaller, wing 74 mm. Dr. Abbott records 

 the iris as pale yellow, in the remainder of the series as white, yellowish 

 wliitc, or gray white. Possibly it is not fully adult. 



The wing in four males from the Malay Peninsula measures 79-83 

 (80.9) mm; in five females 74-79 (77) mm. 



** Oiseaiix I'lndochine Franpalse, vol. 4, p. 39, 1931. 

 •* Joum. Nat Hist. Soc. Slam. vol. 6, p. 94, 1923. 



