208 MR. E. C. STUART BAKER ON 
78. GRAUCALUS MACEI SIAMENSIS. 
Baker, Bull, B. O. C. 1918, No. cexxxiii. p. 69. 
& Chan Tenk, E. Siam, 15. 8. 15. 
¢ 9 Krabin, C. Siam, 5. 10. 15. 
3 Klong Song, near Petriu, C, Siam, 29. 2. 16. 
The male birds collected by Mr. Herbert have wings varying 
from 192 to 195 mm., and are exceptionally big specimens. The single 
female is in moult, and the imperfect wings measure only 155 mm. 
They belong to the form found all over Burma, Siam and Eastern 
Assam, in which the adult female acquires a unicoloured chin, throat 
and upper breast, as in the male, instead of having these parts barred 
asin the females of India and Ceylon. 
79. ARTAMUS FUSCUS. 
Artamus fuscus, Vieill. Nouv, Dict, d’ Hist. Nat, xvii, p. 297 (1817). 
¢ et d juv. Samkok, C. Siam, 21. 6. 15. 
Throughout its great range—from Ceylon to Simla, and from 
Manipur to Amherst and Bangkok—I can find no geographical varia- 
tion in this bird entitling it to division into sub-species. Specimens 
from Peninsular Siam and Tenasserim appear to be very slightly paler 
on the under surface than are birds from elsewhere, but the difference 
is so trifling that it would not be justifiable to separate them on this 
account alone. 
In size the birds vary considerably individually, but on an 
average are much the same from all parts of their habitat. Birds from 
Ceylon are no smaller than those from extreme Northern India, and 
Southern Burmese specimens are practically as big as those from 
Manipur and Assam. 
80. ORIOLUS INDICUS TENUIROSTRIS. 
Oriolus tenuirostris, Blyth, d. A. 8. B. xv. p. 48 (1846), 
? jav. Krabin, C. Siam, 1. 11. 15. 
¢ juv. Klong Bang Lai, P. Siam, 25 1. 16. 
Both specimens in this collection are young birds withoot any 
indication of the distinctive black nape band, but the amount of yellow 
on the tail feathers and their rather slender bills seem to refer them to 
the sub-species named. Both 0. indicus indicus and O. indicus 
JOURN, NAT, HIST, SOC, SIAM. 
