420 MR. E. C. STUART BAKER ON 
In the Ibis 1919,’p. 184 I have shewn that I agree with 
Gyldenstolpe in differentiating between the Siamese birds and those 
from northern India, whether these latter are the large green birds 
from extreme north-western Himalayas or the smaller bronzed 
birds from Sikkim and Assam. I cannot, however, distinguish in 
any way between the birds from Siam and those of practically the 
whole of Burma. Accordingly, as there is no name which is applica- 
ble to the Burmese form, this, together with birds from Siam, must 
bear his name /esse7. 
153. Picus vItTaTUs VITTATYS. 
Picus vittatus, Vieill. Nouv. Dict. d' Hist. Nat. xxvi, p. 91 (1818). 
9 
Gecinus vittatus eisenhoferi, Gyldenstolpe, Orn. Monatsb. xxiv, p. 2 
(1916). 
¢ 2 2 Bangkok. 
$ Hup Bon, §. E. Siam, 
? Pak Jong, E. Siam, 
Iam rather doubtful as to whether Gyldenstolpe’s eisenhoferi 
can be maintained. Kloss (Ibis, 1918 p. 104) gives some interesting 
measurements shewing how this species desreases in size the further 
it extends to the south, but says that he can find no differences m 
colour between the northern and southern specimens. With this 
latter opinion I fully agree, and moreover, after an examination of 
the exgellent material in the British Museum, it does not appear 
that the diminution in size southwards is nearly so pronounced in 
this particular species as Kloss’ figures would make out. 
The following are the measurements of 34 birds, excluding 
Mr Herbert’s :— 
Java 12 birds, wing, 123-137 mm. average, 130 mm. 
Malay States 9 __s,, , 123-132 mm. , 127.6 min. 
Cochin China 5 bs . 128-136 min. 2 132 mm. 
Siam 8 $ , 128-143 mm. a 137.2 mm. 
Mr. Herbert’s birds measure ;— 
Pak Jong,  E. Siam, wing, 149 mm 
| 
Bangkok, ae * 136 mm. | 
> > Looe , 37 mm, > average, 141 mm. 
3 140 mm. | 
Hup Bon, S. ae , 144 mm. J 
JOURN, NAT. HIST. SOC, SIAM. 
