A COLLECTION OF BIRD-SKINS FROM SIAM. 427 
¢ Hup Bon, S. E. Siam. 27.7.15. 
2 Klong Wang Hip, P. Siam, 5.10.15. 
? Hinlap, E Siam, 9.12.15. 
2 Klong Bang Lai, P. Siam, 13.1.16. 
Hesse’s sub-species is a quite good one, and birds from As- 
sam and Burma are easily distinguishable by their much lighter 
colour than birds from Java, Sumatra, Borneo and Palawan, etc. 
From the extreme south of the Malay Peninsula birds are somewhat 
intermediate, one from Singapore and another from Johore being 
almost as black as any Java bird. Most specimens from the south 
of the Peninsula are nearer the northern forms, and should, there- 
fore, be kept with them. As usual, the southern birds average a 
trifle smaller than the northern, but are not sufficiently so to 
constitute a third sub-species. 
Birds from Assam, average wing 238 mm., and bill 49.5 mm.: 
Javan birds measure only wing 223 mm., bill 48.0 mm. These form 
the two extremes in size, but even in these two areas they have not 
much significance, a3 we have one sp2cimen in the British Museum 
collection from northern Burma with a wing of only 218 mm., 
whilst another from Borneo has a wing of no Jess than 241 mm. 
168. SASTIA ABNORMIS ABNORMIS. 
Picumnus abnormis, Temm. Pl. Col. iv, pl. 371, fig. 3. (1825). 
2 ¢ Tung Song, P. Siam, 11-23.9.15. 
2 5 Klong Wang Hip, P. Siam, 9-10.10.15. 
2 Maprit, P. Siam, 10.1.16. 
All this series belong to this form of Piculet. Judging from 
their distribution, the bicds with white eye-brows, Susia ochracea 
(and sub-species) and thos without any white round the eye, Sasia 
abnormis, form two gool species. Both birds inhabit the same 
portions of the northern Malay Peninsula and Siam, and cannot 
therefore be sub-species of one species. 
169. THEREICERYX LINEATUS INTERMEDIUS. 
Stuart Baker, Bull. B. O. C. 1918, p. 19. 
3 Chan Teuk, E. Siam, 9.8.15. 
3 Pak Jong, HE, Siam, 16.8.15. 
VOL. IE, NO. 4; 1919: 
