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



Some of tlie specimens in my collections, especially those from Pak Koh and Bång 

 Hue Pong, have the flanks and sides of the body of a richer rufous colour than other 

 specimens from southern localities thus inclining to G. 1. belangeri Less. They are, however, 

 clearly referable to the Siamese race and not to the Burmese and Tenasserim race of which 

 there is a fine series in the R. Nat. Hist. Museum of Stockholm. When making an 

 excursion at Chum Poo on the 2nd of May I found a nest containing 4 pure white eggs. 

 The nest was placed in a low tree and rather difficult to detect among the leaves though 

 it was fairly large. The whole structure of the nest somewhat resembled that of our 

 common Song Thrush. 



92. Garrulax pectoralis. Gould. — The Black-gorgeted Laughing-Thrush. 



Garrulax iicctoralis: Gyldenstolpe II; Gyldenstolpe III p. 164. 



$ Koon Tan 23 / 5 1914. L = 320 mm.; W == 146,5 mm.; T 

 L = 283 mm.; W = 140 mm 

 L == 296 mm.; W = 143,5 mm.; T == 140 mm.; C = 30 mm. 

 Legs: plumbeous. 



Sakeng lfi / 7 1914. 



144 mm.; C = 31 mm 

 = 30 mm. — ^ K 

 Irides: reddish brown. 



T == 140 mm.; C = 30 mm. - - J Koon Tan 2s /i 1914 



ef Doi Par 



2 7i 1914. 

 Bill: horn colour. 



The Black-gorgeted Laughing-Thrush was not quite as common as Garrulax moni- 

 liger Hodgs. with which species it was associated. 



The colour of the ear-coverts seems to be variable and in some of my specimens 

 they are almost black while in other they are pure white. Like birds from Tenasserim 

 the Siamese specimens have buff-coloured tips to the tail-feathers thus resembling the 

 subspecific race inhabiting Hainan which has been named G. p. semitorquata by Ogilvie 

 Grant. This subspecies is also said to be characterized by having the outer webs of the 

 outer primaries brownish buff instead of hoary grey. 



Siamese specimens seems, however, to be intermediate between the typical and 

 the Hainan race in having the tail-feathers tipped with buff as in G. p. semitorquata b ut 

 the outer webs of the outer primaries are hoary grey as in G. pectoralis. 



The Hainan race seems, however, to me a little doubtful but if the birds really are 

 so much smaller as stated by Grant this form most be given a subspecific rank otherwise 

 it only looks as being an individual variation. 



93. Garrulax moniliger. Hodgs. — The Necklaced Laughing-Thrush. 

 Garrulax moniliger: Gyldenstolpe I p. 20; Gyldenstolpe III p. 164. 



Sex 



Locality 



Date 



Lengfch 



Wing 



Tail 



Culmon 



Tärs ua 









mm. 



mm. 



mm. 



mm. 



mm. 



o" 



Koon Tan 



'"/a 1914 



272 



127 



129 



24 



38 



9 



Pak Koh 



R /i 1914 



270 



125 



137 



23 



37 



c? 



Pak Koh 



'-'% 1914 



282 



128 



146 



26 



38 



ef 



Pak Koh 



l; /i 1914 



265 



126 



134 



25 



39 



Irides: yellow to yellowish red. Bill: horn colour. Legs: plumbeous grey. 



