THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 325 



$ . Koh Lak, S. W. Siam, 4 April 1919 [No. 5050]. 



"Iris dark; maxilla horny, mandible yellow; feet yellow to olive". 



Total length J, 125, 125; $, 125, 116, 121, 127 ; wing <S , 



61, 60i $ , 58. 60, 63, 58 ; tail S , 49, 53; $ , 52, 52, 52, 48 ; tarsus 



d , 18, 19 ; $ , 17, 16.5, 17, 18 ; bill from gape d , 17, 16 : $ , 15.5, 



14, 17, 14.5 mm. 



Phylloscopus davisoni Gates. 



Acanthopneuste davisoni, Oates, Faun. Brit. Ind. Birds i, 1889, 

 p. 420 (Muleyit). 



Phylloscopus presbytes, C. i, p. 86 (Muleyit). 



This bird, which breeds on Muleyit, may eventually be dis- 

 covered on the mountains of the Siara-Tenasserim range. A small 

 species, with wing of about 53 mm. 



466. Phylloscopus borealis borealis (Bias.). 



Phyllopneuste borealis, Blasius, Naumannia, 1858, p. 313 (Ochotsk- 



an Sea). 

 Phylloscopus horealis, A., p. 352 (Shymotee to Malewoon) ; C. i, 



p, 77 (S. Tenasserim) ; E., p. 78 (Pattani) ; F., p. 65 (Trang) ; 



H., p. 150 (partim : Koh Samui) ; I., p. 45 (Koh Lak) ; J., p. 183 



(Langkawi, Terutau and Butang Islands). 

 Acanthopneuste borealis borealis, K., p. 212 (Koh Lak). 

 Phyllosco2nis borealis borealis, h., p. 113 (Ghirbi ; Pulo Panjang ; 

 Junk Seylon) ; M., p. 2U3 (Tung Song). 



c? , 2 $ . Koh Pra Tung, P. Siam, 18 Feb. 191 9 [Nos. 4101-3]. 



c? . Victoria Point, S. Tenasserim, 24 Feb. 1919 [No. 4192]. 



c? , $. Tasan, Chumporn, P. Siam, 15-24 March 1919 [Nos. 

 4603, 4837]. 



d , 9 . Koh Lak, S. W. Siam, 6-9 April 1919 [Nos. 5118, 5204]. 



d,3 ?. Hat Sanuk, S. W. Siam, 15-18 April 1919 [Nos. 

 5303, 5355, 5375-6]. 



"Iris dark ; maxilla dark horn, mandible yellow ; feet brown- 

 ish yellow to olive brown". 



Total length d , 118, 123, 123, 125, 131 ; $, 123, 127, 120, 

 121, 123, 122 ; wing d , 63, 58, 65, 67, 68 ; $ , 65, 67, 56, 64, 65, 63 : 

 tail d , 48, 43, 52, 56, 53 ; $ , 50, 53, 48, 52, 52, 53 ; tarsus c7 , 18, 

 18, 18, 19.5, 20; $ , 18.5, 19, 17, 19, 18.5, 19; bill from gape d , 15, 



15, 16, 15, 14; 5 , 15.6, 17, 15, 15, 16, 14 mm. 



I. 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. P\ M. S. Mus. vii, 1917. M, I. Baker, op. cit., iv, 1920 (third part). 



K. Kloss, Ibis, 1918. M. 2. Baker, Fauna Brit, lud.. Birds, i, 192-2. 

 L< Robinson and Kloss, Journ. N. H. Soc. Siam, 



iii. 1919. 



VOL. V, NO. 3, 1924. 



