118 NILS GYLDENSTOLPE, ZOOLOGICAL RESULTS OF THE SWEDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 



233. Eurystomus orientalis calonyx. Sharpe. 



Eurystomus orientalis calonyx: Gyldenstolpe II; Gyldenstolpe III p. 230. 

 Eurystomus calonyx: Robinson & Kloss p. 32; Grant p. 110. 



J 1 Pak Koh Vi 1914. L = 282 mm.; W = 187 mm.; T = 100 mm.; C = 23 mm. — <£ Pak Koh 

 23 / 3 1914. L = 288 mm.; \V = 193 mm.; T = 106 mm.; C = 21 mm. — Irides: brown. Bill: brick red 

 with the tip of the upper mandible black. Legs: påle coral. 



This subspecies which has been separated from the typical E. o. orientalis Linn. 

 on account of its having the apical half of the outer webs of the rectrices blue, except at 

 the utmost tip, was rather rare in the parts of Siarn traversed by my Expedition. It 

 occurs in the same localities as E. o. orientalis with which it probably interbreeds. As 

 shown by Stresemann in his recent paper »Die Formen von Eurystomus orientalis L. » 

 the specimens from the Malay Peninsula and Tenasserim are practically intermediate 

 between typical E o. orientalis and E. o. calonyx. 



This is also confirmed by the specimens in my Siamese collection which therefore 

 ought to be better named: 



Eurystomus orientalis orientalis ^ calonyx. 



Fam. Psittacidae. 



234. Palaeornis eupataria magnirostris. Ball. 



Paleeornis indoburmanims : Gyldenstolpe UI p. 233; Gyldenstolpe I p. 60. 



<$ Koon Tan 4 / 5 1914. L = 455 mm.; W = 190 mm.; T = 290 mm.; C = 36 mm.; Depth of upper 

 mandible at cere = 21 mm. — Irides: yellow. Bill: red. Legs: yellowish brown. 



This beautiful Paroquet was rather rare and apparently very JocaJly distributed 

 över the northern parts of the country. It never occurred in large flocks like the other 

 members of the family and when observed it was either single or in small parties of 5 to 

 6 birds. 



The only specimen I got, clearly belongs to the race which was originally described 

 from the Andanian Islands. In colour it resembles P. e. eupataria Linn. from Ceylon, 

 but is at once distinguished by its mnch larger size. P. e. magnirostris which I only con- 

 sider as a mere subspecies of P. eupataria is chiefly characterizcd by its very high and 

 massive bill. It also has an indication to a blue collar above the rosy collar on the nape, 

 which is of the same colour as the top of the head. The blackish brown mandibular stripes 

 are also rather narrow. 



235. Palseornis cyanocephalus rosa. Bodd. - The Eastern Blossom-headed Paroquet. 



Paleeornis rosa: Oustalet 1899 p. 224; Gyldenstolpe I p. 60; Gyldenstolpe II; Gyldenstolpe III p. 233; Gairdner 

 ]). 150. 



The Eastern Blossom-headed Paroquet was quite common at Pak Koh, but f urther 

 north it was rather rare and only a few specimens were noticed. It keeps exclusively to 

 the dry forests and was never met with in the evergreen jungles. 



