208 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



Stuart Baker ®^ records it from Hupbon in southeastern and 

 Hinlap in eastern Siam; Robinson ^^ from Koh Chang and Ok Yam. 



The range of the form so far as known is eastern and southeastern 

 Siam. It probably extends also into southern Indo-China. 



MEZOBUCCO DUVAUCELII STUARTI Robinson and Kloss 



Mesobucco duvauceli shiarii Robinson and Kloss, Journ. Nat. Hist. See. Siam, 

 vol. 3, p. 100, 1919 (Klong Tung Sal, Junk-seylon, Peninsular Siam). 



One adult male, three immature males, two adult females, and 

 one immature female, Bangnara, Patani, June 5, 1924, July 8-21, 

 1926; two adult males and one inmiature male, Ban Kii'iwong, Nakon 

 Sritamarat, July 10-11, 1928; one female, Wat Kiriwong, Nakon 

 Sritamarat, July 25, 1928. 



Dr. W. L. Abbott collected five males, eight females, and one 

 unsexed specimen in Trang (Lay Song Hong, August 18-December 17, 

 1896; near Kao Nok Ram, December 29, 1898 and January 3-5, 1899; 

 Kao Soi Dao, 1,500 feet, February 17, 1899). He gives the soft 

 parts as: Iris dark brown; bill black (male), black, leaden beneath 

 at base (female); feet duU pale green or olive, claws bro'WTiish black. 



This series differs from M. d. cyanotis of northern Siam in having 

 the wing and tail somewhat shorter, the red patches on sides of 

 head brighter with Uttle or no yellow mixture in the suborbital spot, 

 and the black bases of the feathers of the jugular region showing 

 more plainly and forming a more or less well-defined spot. 



The Patani specimens are nearer those of Trang than the Sumatran 

 race, M. duvaucelii duvaucelii; in the latter the ear coverts are black, 

 the blue of the vertex is deeper and extends farther back, and the 

 red markings on the side of head are brighter. M. d. stuarti has 

 blue ear coverts with a greenLsli tmge. The Patani birds are, how- 

 ever, brighter than Trang specimens. The Bomean race, M. d. 

 bomeensis Parrot, also has black ear coverts, lilce that of Sumatra; 

 it appears to be slightly larger. Robinson and Kloss ®^ think the 

 bird from the Malayan States of the Malay Peninsula belong to the 

 Bomean form. I have not examined any specimens south of Patani, 

 except four poor specimens from Malacca, which do not appear to 

 have the ear coverts black. If the Malayan bii-d should prove to 

 be separable from that of Borneo, then S. Baker's name Cyanops 

 duvaceli rohinsoni,^^ type from Klang, Selangor, would be available 

 for it. Possibly tliis race may reach western Patani. 



The range of M. d. stuarti extends from southern Tenasserim 

 through Peninsular Siam south to Patani. The farthest north in 



•I Journ. Nat. Hist. Soc. Siam, vol 3, p. 430, 1919. 

 •« Ibis, 1915, p. 738. 



•« Journ. Nat. Hist. Soc. Siam, vol. 5, p. 167, 1923 

 «♦ Bull. Brit. Orn. Club, vol. 39, p. 20, 1918. 



