THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 393 



Piprisoma modestum, F., p. 79 (Trang). 



3 c? , $ ad., 9 imm. Tapli, Pakchan Estuary, P. Siam, 4-5 

 March 1919 [Nos. 4403-4, 4440, 4442]. 



(? . Tasan, Chumporn, P. Siam, 23 March 1919 [No. 4795]. 



Adult. " Iris reddish, or orange ; upper mandible black, lower 

 slate ; feet slate or greenish black". 



Immature. " Iris dark ; bill yellow washed with brown on 

 the maxilla ; feet plumbeous". 



Total length S , 107, 100, 100, 98 ; 9 , 103 ; wing J , 60, 62, 

 60, 62 ; $ , 59 ; tail S , 38, 34, 33, 37 ; $ , 37 ; tarsus d , 12, 12, 14, 

 13.5 ; $ , 13 ; bill from gape c? , 11, 12, 10, 11 ; $ , 11 mm. 



The immature bird differs from the adults in the almost com- 

 plete absence of dark streaking on the lower parts, the middle of the 

 belly and under tail-coverts being more washed with sulphur. 



This subspecies ranges at least as far south as Trang, whence 

 we have two specimens. In the Federated Malay States it is re- 

 placed by a darker and duller race with little or no white on the 

 tail, Piprisoma modestuTn jinschii (Bartels) [Syn. PiprisoTna mo- 

 destum reinotum, Robinson & Kloss, Journ. Fed. Malay States, vi, 

 1915, p. 29], which has been met with in Johore and occurs again in 

 Java, the type locality. 



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



56, No. 2, 1916. (first and second parts). 



J. Eobinson, Journ. F. M. S. Mus. vii, 1917. W. I. Baker, op, cit., iv, 1920 (third part). 



Ki Kloss, Ibis, 1918. •*"• 2- Baker, Fauna Brit. Ind., Birds, i, 1923. 

 L. Robinson and Kloss, Jotirn. N. H. Soc. Siam, 



iii. 1919. 



VOL. Vj NO. 3, 1924. 



