1918*] described Siamese and Malayan Birds. 587 



-f Stachyris leucotis goodsoni. 

 Hartert, Bull. B. O. C. xxxvi. 1915, p. 7. 

 A female from Paku, Saribas, Sarawak, dated November, 

 and a male, dated March, differ from a large series from the 

 Malay Peninsula in the points stated by Hartert, viz., a 

 darker slaty crown and in the darker tips to the wing- 

 coverts, the first character having been already noted by 

 Dr. Sharpe (Cat. I3in!s Brit. Mus. vii. 1883, p. 537). In 

 addition, our specimens have the lores more tinged with 

 buffy than any of the Malay Peninsula series. 



'-/- Stachyris poliocephala diluta, subsp. nov. 



Differs from the typical S. p. poliocephala from Sumatra 

 (two specimens from Deli tua, north-eastern Sumatra, com- 

 pared) in being lighter below, the ferruginous of the breast 

 and belly less saturate; the chin and throat less blackish 

 grey ; the cheeks and ear-coverts slightly paler grey. 



Wing 65 mm., against 68 in the Sumatrun birds ; mean 

 of ten Malayan birds 66'2, of four Bornean birds 67'0 mm. 



Type. — Adult female, collected at Taiping, Perak, Feder- 

 ated Malay States, on 4 November, 1914. 



Specimens examined. — Twenty-four from the Malay Penin- 

 sula, from Perlis to Selangor and Pahang ; and four from 

 Sarawak, Borneo, which for the present we associate with 

 this form. 



Remarks. — In addition to the diagnostic characters above 

 stated, the Borneo-Malayan form shows a tendency to be 

 somewhat paler in the mantle and back, but this feature 

 is not constant. 



^ Stachyris maculatus pectoralis. 



Timalia pectoralis Blyth, Journ. Asiat. Soc. Bengal, xi. 

 1842, p. 793: Malacca. . 



Comparison of eleven specimens from Sarawak with 

 fifteen from the Malay Peninsula (Upper Perak to Malacca) 

 shows that the latter diff"er in being generally darker 

 beneath, the flanks strongly washed with fulvous grey, the 

 white edges to the feathers of the belly less pure. 



-r 



