THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 235 



324. Muscicapula melanoleuca westermanni Slmrpe. 



Muscicapida loestermanni, Sharpe, P. Z, S. 1888, p. 270 (Perak). 



A male was obtained on Kliao Luang, 5,600 ft., Nakorn Sri 

 Tamar&t, Peninsular Siam, on IGtli March 1922 by Mr. W. J. F. 

 Williamson's collector. 



325. G-erygone modig-liani pectoralis Davison. 



Gerygone pectoralis, Davison, Ibis, 1892, p. 99 (Pahang Coast). 



Gerygone yriseus, Gyldenstolpe, Ornith. Monatsb., 1916, p. 27 (Koh 

 Lak); I., p. 78, PI. 2, fig. 2 (Koh Lak); Robinson and Kloss, 

 Ibis, 1918. p 591. 



Ge7'ygo7ie modigliani pectoralis, L., p. 104 (Pulau Panjang ; Puket). 



76 ad., 5 9 ad., c5' imm., 2 imm., 1 juv. Koh Lak, Rajburi, 

 Peninsular Siam, 2-8 April 1919 ( Nos. 4900-1,4964-9,4988-92, 

 5041-2, 5156 ). 



" Iris dark ; bill black ; feet greenish black : younger birds with 

 the bill pale or yellowish at the base ; feet grey or dark slate ". 



Total length 6, 103, 104, 98, 102, 98, 101, 103; 9, 98, 103, 

 100, 98, 103 ; wing o , 51, 51, 48, 51, 49, 50, 53; 2, 49, 48, 49, 47^ 

 48; tail 6, 38, 38, 37, 38, 37, 39, 40; 9, 38, 38, 37, 38, 37; tarsus 

 d, 16, 16.5, 16.5, 17, 16, 16.5, 15.5; 9, 16, 15, 16, 15, 15; bill from 

 gape 6, 12.5, 12.5, 12, 12.5, 12.5, 12.5, 12; 9,12, 12, 12, 12, 13mm, 



The acquisition of this considerable series from the type 

 locality of Gerygone grisncs confirms our remarks on this " species", 

 and its identity with Gerygone pectoralis from Kuala Pahang ( Ibis, 

 1918). The whole series, however, as well as the type of G. 

 pectoralis, and the bird from Pulau Panjang, have darker lores than 

 the birds from the south of the West Coast, of which we now have 

 eight specimens. In this they resemble the typical G. mocligliani 

 from Sumatra which, however, appears to be a bird with a slightly 

 smaller bill, judging from our single specimen from Sungei Penoh, 

 Korinchi, and with an even more markedly incomplete pectoral band. 

 As regards the colour of the underparts, the tint of yellow, which is 

 deeper in our single Sumatran bird, does not appear to be important. 



I. Gyldenstolpe, Kungl. Sv. Vet. Akad. Handl. M. Baker, Journ. N. H. Sou. Siam, iii. 1919. 



56, No. 'X 1916. (first part). 



J. Robinson, Journ. F. M. S. Mus. vii, 1917. Baker, Jonrn. N.H. See. Siam, iii, 1919. 



K. Kloss, Ibis, 1918. (second part). 



!.• Robinson and Kloss, Journ. N.H. Soc. Siam, M. I. Baker, Journ. N.H. f^oc. Siam, iv, 1920 



iii, 1910. (third part). 



VOL. V, NO. 3, 1924. 



