THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 283 



Specimens from Cochin China are similarly variable and have the 

 maroon of the mantle brighter ; low country Annam birds are duller. 



Baker (M., p. 182) says that East Tenasserim birds are not 

 truly typical but approach helangeri : that may be the case further 

 north, but the present series are inseparable from specimens from 

 East Siam and South Annam, which are alike. 



In stating that diardi occurs in South Yunnan and Siam, 

 and helangeri in the Shan States and Annam, he does violence to 

 reasonable distribution, for one form would divide the range of the 

 other. We find Annam birds indistinguishable from Siamese diardi 

 Actually. leucolopJcus (Hard war, United Provinces) occurs in the 

 north-west, diardi '^Siam) in the south-east and helangeri (Pegu) 

 between. 



Garrulax leucolophus belangeri Less. 



Garrulax helangeri, Less. Tr. d'Orii , 1831, p. 648 (Pegu) ; A., p. 



286 (Tavoy) ; C. i, p. 33 (Tenasserim south to Tavoy). 

 Garrulax leucolophus diardi, M. 2, p. 148 (Tenasserim). 



391. Garrulax moniliger fuscata Baker. 



Garrulax moniliyer fuscata, Baker, Bull. Brit. Oi'ii. Club, xxsviii 



1918, p. 64 (Tavoy); M., p. 183 (S. Burma and Malaya) J 



M. 2, p. 152 (Tenasserim and W. Siam). 

 Garrulax moniliger, A., pp. 291, 515 (Tavoy) ; C. i, p. 35 (partim : 



Tenasserim south to Tavoy) ; Oates, Faun. Brit. Ind. Birds, i, 



1889, p. 81 (partim: Tenasserim). 

 Garrulax moniliger mouhoti, K., p. 232 (partim : Lower Bu)ma). 



2 c? , 1 9 . Hat Sanuk, near Koh Lak, S. W. Siam, 13-17 April 

 1919 [Nos. 5274, 5331, 5360]. 



" Iris yellow ; bill greenish horn, paler at tip ; feet brownish 

 grey, toes greyer". 



Total length 6, 290, 280; $, 253: wing d, 126, 126; 2,. 

 128 ; tail 6 , 138, 134 ; 2 , 142 ; tarsus c^ , 42 (worn), 39 ; $ , 41 ; bill 

 from gape d , 31.5, 32 ; § , 31.5 mm. 



This race differs from mouhoti Sharpe in being generally 

 slightly paler above, with a paler nuchal band : below the rufous 

 colouring is paler but much more extensive, spreading over almost 



!• Gyldenstolpe, Kungl. Sv. Vet. Akad. Handl. M. Baker, Journ. X. H. Soc. Siam, iii, 1919. 



56, Xo. '2, 1916. (first and second parts). 



J. Robinson, Journ. F. M. S. Mus. vii, 1917. M. 2. Baker, Fauna Brit. Ind., Birds, i, 1922. 



K. Kloss, Ibis, 1918. 



U. Robinson and Kloss, .Joiu-n. X. H. Soc. Siam, 



iii, 1919. 



VOL. V, NO. 3, 1924. 



