348 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



Malacca, April 14, 1900; one female, Tanjong Dungun, Trengganu, 

 September 21, 1900; one male, Dungun River, Trengganu, September 

 21, 1900; one male, Tanjong Laboha, Trengganu, September 29, 

 1900; one male, Endau River, eastern coast of Johore, July 18, 1901. 

 He gives the soft parts as: Iris dark red or brownish red; bill black 

 above, dark blue below at the base; naked sldn about the eyes and the 

 angles of the jaws dull blue; feet pale olive fleshy or pale greenish 

 brown. 



Both the series collected by Dr. Smith and that of Dr. Abbott vary 

 in the depth of color above and below individually. The throat, 

 face, and forehead vary from a deep neutral gray to dark dull gray; 

 the back from russet to cinnamon-brown. The light-colored birds are 

 either females or immature, though in fully adult specimens there is 

 little or no difference in color between the sexes. I think the variation 

 due to age, though I have not seen specimens from the northern part 

 of its range. 



The form ranges from the southern end of the Malay Peninsula 

 north through Peninsular Siam to southern Tenasserim. Closely re- 

 lated forms have been described from Sumatra, Banka, Banjak, and 

 Batu Islands, and Borneo. Robinson and Kloss " record specimens 

 from Tung Pran, Mamoh, Tapli, and Tasan, wliich are apparently 

 near the northern limit ot its range in Peninsular Siam. 



MIXORNIS GULARIS GULARIS (Horsfleld) 



Timalia gularis Horsfield, Zoological researches in Java, no. 3, pi. and text, 

 1822 (founded upon Motacilla gularis RafRes MS.; Sumatra). 



Prinia pileata Blyth, Journ. Asiat. Soc. Bengal, vol. 11, p. 204, 1842 (Malay 

 Peninsula). 



Dr. W. L. Abbott took two males and two females on Singapore 

 Island, May 12-31, 1899; one male, Tanjong Laboha, Trengganu, 

 September 29, 1900; one male, Pulo Adang, Butang Island, West 

 Malay Peninsula, December 17, 1899. He gives the soft parts as: 

 Iris dull browTi or yellowish brown; naked skin about the eye dull blue; 

 bill black above, leaden blue beneath; feet oUve or greenish. 



The series from Trang and Yala, Patani, are intermediate between 

 gularis and connedens, being somewhat darker on the back than the 

 latter and a Httle heavier streaked on the throat, but on the whole 

 nearer connedens. 



Robinson and Kloss "^ say that this Malayan form extends north- 

 ward to Patani; this must be just along the southern border. Dr. 

 Abbott took a specimen on Pulo Adang, an island to the west of 

 Langkawi; otherwise the form seems to be confined to the JMalay 

 States. 



« Journ. Nat. Hist. Soc. Siam, vol. 5, p. 298, 1924. 

 M Journ. Nat. Hist. Soc. Siam, vol. 5, p. 300, 1924. 



