1918.] described Siamese and Malayan Birds. 585 



We have four specimens from Kao Noiig, a mountiiin on 

 the borders of the provinces of Bandon and Nakon Sri- 

 tamarat, about 40 miles N.N.E. of Tung Song, collected 

 between 1200'-1500', between 18 and 24 June, 1913. 



Of these one is a nestling having the under surface 

 uniform dull slatish ; two are very immature with earthy- 

 brown heads and the chestnut ochraceous feathers of the 

 breast only just appearing, and the fourth is an adult 

 female. 



This is absolutely identical with two of the same sex from 

 Cheras, near Kuala Lumpur, Selangor, collected in October 

 1908, and from Kuala Teku, Tahan River, Pahang, August 

 1905 ; so Mr. Stuart Baker's type must have been slightly 

 immature. 



All these specimens and many others from Selangor are 

 identical with a male from Sandarong Agong, Korinchi, 

 western Sumatra, 2450 feet, collected on 2 July, 1914, and 

 this can be regarded as a topotype of the species which was 

 described from Padang. Wings of eight adults from the 

 Malay Peninsula range from 93 to 98 mm., males being 

 apparently slightly larger. The Sumatra male measures 

 99 mm. 



-f- Corythocichla brevicaudata herberti. 

 Stuart Baker, Bull. B. O. C. xxxviii. 1917, p. 10. 



Corythocichla leucosticta Sharpe; Robinson, Journ. Fed. 

 Malay States, 1914, p. 104. 



This subspecies, also from the same locality as the pre- 

 ceding, has no existence in fact. 



The actual type passed through our hands, and we have 

 before us six birds, collected within a radius of 40 miles of 

 Tung Song, which we have compared with thirty-six others 

 from various parts of the Federated Malay States, including 

 four exact topotypes. 



While it is true that extreme specimens from each of 

 these series present considerable differences inter se, any 

 one from either series can be matched by one from the 

 other. 



