420 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



These specimens agree better with the form from southeastern China 

 rather than the western form immansuetus. It is rather remarkable 

 that northern Siam is the only place from which the United States 

 National ^Iiiseum has received the following three species of this 

 genus: temminckii, eugenei, and caeruleus. 



The range of the form is from northern Siam to southeastern China, 

 Tonkin, Laos, Annam, and Cambodia. In Hupeh and Szechwan prov- 

 inces of western China M. c. immansuetus Bangs and Penard occurs ^^; 

 it has brighter, more shining blue tips to the feathers. 



In northern Siam this is a comparatively rare bird, only a few 

 records of captures being recorded. Count Gyldenstolpe '^ records it 

 from Khun Tan; Chasen and lOoss ^^ from Doi Sutep, 5,500 feet. De 

 Schauensee ^° secured a male at Chiengdao, January 17. 



It is easily distinguished from the other members of the genus 

 occurring in Siam by its wholly black bill. 



COCHOA VIRIDIS Hodgson 



Cochoa viridis Hodgson, Journ. Asiat. Soc. Bengal, vol. 5, p. 359, 1836 (Nepal). 



One immature male and one immature female, Khun Tan, October 

 23 and 26, 1929. 



These were apparently the first specimens collected in Siam of this 

 fine species, and were recorded by me.^^ 



It ranges from the Himalayas to Burma, northern Siam, southern 

 China, and south to Laos, Tonkin, and southern Annam. Though 

 immature, both of these specimens have nearly acquired the adult 

 plumage. The male has the pileum white barred wdth black and with 

 a slight bluish wash; ear coverts and rictus white tipped with black; 

 throat ochraceous-bufF with dusky bars; jugulum with a few feathers 

 ochraceous-orange tipped with black, and there are a few similar 

 feathers scattered through the green of the breast and on the scapulars 

 and hindneck; otherwise it is like the adult. The female is similar but 

 lighter green below. It is acquiring a few cobalt-blue feathers on the 

 crown. 



The adult male is dark emerald-green, lighter green below; wings 

 and tail black, the outer margins of the wing feathers basally, and the 

 upper surface of the tail until near the tip, cadet blue; pileum a brighter 

 blue; lores and a streak surrounding the eyes black; wing, 135-145 mm, 



Stuart Baker -^ described Cochoa rothschildi from two specimens, one 

 taken in Sikkim, the other in Manipur. He says that it differs from 

 viridis in having the lowerparts almost entirely orange-brown; the ear 



" Dec. Papers Boston Soc. Nat. Hist., vol. 5, p. 147, 1925. 



«» Kunffl. Svenska Vet.-Akad. Ilnndl., vol. 50, no. 2, p. 61, 1916; Ibis, 1920, p. 479. 



«• Journ. Siam Soc. Nat. Hist. Suppl., vol. 8, p. 245, 1932. 



» Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 212, 1934. 



«i Journ. Siam Soc. Nat. Hist. Suppl., vol. 9, p. 157, 1933. 



M The fauna of British India, Birds, ed. 2, vol. 2, p. 186, 1924. 



