754 Mr. H. C. Robinson on Birds collected on the 



Copsychus saularis musicus. 



Lanius musicus Raffles, Trans. Linn. Soc. xiii. 1821, p. 307. 



Copsychus saularis (Linn.); Sharpe, Cat. vii. 1883, p. 61; 

 Hartert, Nov. Zool. xvii. 1910, p. 234; Gyldenstolpe, p. 39. 



a. 1 c? . Klong Menao, S.E. Siara. Jan., 1915. 



Gyldenstolpe states that his specimens of the Dial Bird 

 from north and central Siam all belong to the Indian form 

 C. saularis saularis (Linn.), in which the under wing-coverts 

 and axillaries are almost entirely white. 



Mr. Kloss' example, however, agrees perfectly with skins 

 from the Malay Peninsula and Sumatra in having the under 

 wing-coverts and axillaries largely black, thus agreeing 

 with C. s. musicus, which was originally described from 

 Sumatra. 



Acrocephalus bistrigiceps. 



Acrocephahis bistrigiceps Swinh. ; Seebohm, Cat. v. 1881, 

 p. 94 ; Hartert, Vog. pal. Faun. i. 1909, p. 565 ; Robinson, 

 Journ. Fed. Malay States Mus. v. 1915, p. 150. 



a. \^ . Klong Yai, S.E. Siam. 7 Jan., 1915. 



" Iris dark ; bill sooty brown, lower mandible dull yellow ; 

 feet brownish olive." — C, B. K. 



Not hitherto recorded from Siam proper, though it 

 is known from Tenasserim and the northern Malay 

 Peninsula. 



Phylloscopus borealis borealis. 



Phylloscopus borealis (Bias.) ; Seebohm, Cat. v. 1887, 

 p. 40 ; Robinson & Kloss, Ibis, 1911, p. 65 ; Robinson, 

 Journ. Fed. Malay States Mus. v. 1915, p. 150. 



Phylloscopus borealis borealis Hartert, Vog. pal. Faun. i. 

 1909, p. 517. 



a,b. 1 c?, 1 ? . Koh Kut I., S.E. Siam. Dec, 1914. 



"Iris dark; bill, upper mandible brown, lower yellow ; feet 

 brownish yellow."— C. B. K. 



Specimens in fairly fresh plumage, with the pale wing- 

 bars well marked. 



This race and the more eastern form P. b. zanthodryas 

 Swinh. overlap in their winter quarters in Borneo, but. with 



