THE BIRDS OF NORTHERN THAILAND 321 



that my only example with the gonads known to have been active 

 was collected on August 3 on Doi Suthep at 3,500 feet. I have no 

 juveniles and my specimens throw no light on the sequence of molts 

 and plumages. 



Adults of either sex have the irides bright red ; the bill, feet, toes, 

 and claws black. 



The adult male has the feathers of the crown, nape, shoulders, scapu- 

 lars, back, rump, upper and under tail coverts bright violet-blue with 

 an enamellike sheen ; the rest of the plumage black. The adult female 

 is quite different : it has the remiges and outer rectrices blackish and 

 the rest of the plumage dull verditer blue. 



Thirteen fully adult northern males (of which one is molting the 

 primaries) have the wing length ranging from 127.3 to 140.3 mm., but 

 only two have it under 130 mm. and only two have it over 134 mm. 

 They are thus intermediate between puella and sikkimensis but rather 

 nearer the latter. 



AETHORHYNCHUS LAFRESNAYEI INNOTATUS (Blyth) 



Burmese Great Iora 



I[ora~\ innotata, Blyth, Journ. Asiat. Soc. Bengal, vol. 16, 1847, p. 472 (Arakan). 

 Aethorhynchus xanthotis, Gyi>den,stolpe, Journ. Nat. Hist. Soc. Siam, 1915, 



p. 166 (listed). 

 AEthorhynchns lafresnayei lafresnayei, Gyldenstolpe, Ibis, 1920, p. 489 



("Throughout . . . northern Siam"). 

 Aethorhynchus lafresnayi lafresnayi, de Schauensee, Proc. Acad. Nat. Sci. 



Philadelphia, 1929, p. 536 (Chiang Saen). 

 Aethorhynchus lafresnayanus innotatus, Greenway, Bull. Mus. Comp. Zool., 



1940, p. 174 (Doi Nang Kaeo). 



The great iora is an apparently rare resident of the districts east 

 of (and including) the Khun Tan chain, occurring from the plains to 

 a maximum elevation of 2,800 feet (Doi Nang Kaeo). Eisenhofer 

 took a female at Ban Huai Horn, February 7, 1912 (Hannover) , and 

 another at Khun Tan (Stockholm) ; I have a male from Ban Tong 

 Yang and a female from Ban Huai Som. A single specimen collected 

 by de Schauensee and two recorded by Greenway bring to only seven 

 the total number of examples yet known from our area. 



The two birds taken by me were found in fairly open lowland 

 evergreen and, in actions, resembled the following species. The one 

 from Ban Tong Yang, May 4, had the gonads enlarged. 



De Schauensee's specimen had the bill slate blue, with the culmen 

 black; the feet and toes slate blue. 



The male has the upperparts dull green, washed with yellow on 

 the forehead, forecrown, and tail ; the remiges edged along the outer 

 web with yellow-green, along the inner web with white; the outer 



