75 



[Vol. xxxi. 



typical form, viz. two males 63 and 68 ram., four females 

 63 to 65 mm. 



Type in the Collection of H. F. Witherby : <?. No. 767. 

 .31. i. 11. Yashwanen, near Nanking, China. H. Lynes 

 coll. 



Obs. Captain Lynes collected five examples in winter 

 (December to March) on the Yangtze, and these agree 

 precisely with a specimen from Amur Bai (3. iv. 94) in the 

 Natural History Museum, I have compared them with 

 eighteen specimens of the Japanese form, including the type. 

 E. yessoensis was described by Swinhoe from a specimen 

 collected by Blakiston in Japan, and the bird is now known 

 to breed there (C. Ingram, 'Ibis/ 1908, p. 155). Probably 

 all the specimens which winter in China belong to the new 

 form described above, which, no doubt, breeds somewhere in 

 Eastern Siberia, and probably in the basin of the Amur. 



Dr. C. B. Ticehurst exhibited a series of female examples 

 of Motacilla citreoloides (Hodgs.) on behalf of Capt. C. H.T. 

 Whitehead, who had collected them in the Kaghan Valley, 

 N.W.F, India, and made the following remarks : — 



" In the ' Fauna of British India/ vol. ii. pp. 298-9, Oates 

 states that it is pretty certain that the sexes of this Wagtail 

 are alike and that the young assume adult plumage at the 

 first spring-moult. Capt. Whitehead, in his paper on the 

 birds of Kohat and Kurram ('Ibis/ 1909, pp. 242 & 621), 

 indicated that this species takes at least two years to 

 attain the fully adult plumage, though it breeds in its first 

 summer-dress ; but he did not realise, until he obtained 

 the series which I exhibit here to-night, that the female 

 never resembles the adult male in plumage. Capt. White- 

 head was examined many pairs of breeding birds in confirm- 

 ation of this statement. The females exhibited were all shot 

 at the nest, and in every instance they were paired with a 

 fully adult male. The specimens shown are easily divisible 

 into two groups : those with the forehead, supercilium, and 

 the whole of the underparts bright canary-colour, which, 

 until further proof comes to hand, we may assume to be 



