A COLLECTION OF BIRD-SKINS FROM SIAM. 213 
94. HEMICHELIDON FERRUGINEA. 
Hemichelidon ferruginea, Hodgs. P. Z. 8. p. 32. (1845) 
2 5 2 Tung Song, P. Siam, 5-25. 12. 15. 
95. CYORNIS TICKELLI SUMATRENSIS. 
Cyornis tickelli sumatrensis, Hartert, Nov. Zool. ix. p. 549 (1902). 
$ Pak Jong, H. Siam, 18. 8. 15. 
3 ¢ @ Klong Wang Hip, P. Siam, 29. 9-13. 11. 15. 
2 Krabin, C. Siam, 10. 11. 15. 
96. CYORNIS MAGNIROSTRIS COERULIFRONS. 
Cyornis magnirostris coerulifrons, Baker, Bull. B. O. C. No. cexxxvi. 
p. 6:/(1948): 
¢ Klong Bang Lai, P. Siam, 24. 1. 16. (Type). 
2 Klong Bang Lai, P. Siam, 14. 1. 16. (Type). 
2 3 Klong Bang Lai, P. Siam, 15 and 31. 1. 16. 
This beautiful little flycatcher is exactly like the Northern 
O. m. magnirostris, except in being decidedly smaller and in having a 
proportionately rather smaller bill. 
Mr. Herbert’s three males vary from 70 to 72 mm. in wing 
measurement, as against 78 to 83 mm. in the larger bird, whilst his 
female has a wing of 69 mm. against 73 to 78 mm. in the female of true 
magnirostris. The bill, measuring in a straight line from the feathers 
of the forehead to the tip, varies in the new sub-species between 11 
and 11.5 mm, whereas in true magnirostris the female has it about 
13.5 mm. (13 to 13.75 mm.) and the male about 14.2 mm. (14 to 
14.75 mm. ). 
The range of this race is as yet unknown, but a male in the 
British Museum collection, from Tenasserim in Burma, seems to belong 
to it, having a wing of 70 mm. and a bill about 11.2 mm. 
97. CYORNIS RUBECULOIDES. 
Phoenicura rubeculoides, Vigors, P.Z.8, p. 35 (1831). 
2 Krabin, C. Siam, 7. 11. 15 
A quite typical female with bill of 11 mm. and wing of 68 mm. 
and with dark under-side much suffused on flanks and lower breast with 
olive. When placed beside the female of C. ¢. sumatrensis, obtained 
three days later at the same place, Krabin, the differences in plumage 
are very striking. 
VOL, III, N@. III, 1919. 
