13 [Vol. xl. 
The Peninsular Siam birds, on the other hand, while 
agreeing in general size and colour with the preceding, have 
a markedly smaller bill, ranging in the males from 41°5- 
43 mm. andin the females from 40-43. The difference is 
so consistent without material overlap that we think it well 
and reasonable to bestow a subspecific name. In Tenasserim 
there is a long range to the south of Tavoy, from which the 
species is not known, though on Gunong Tahan in lat. N. 
4° 40' in the Malay Peninsula a very distinct form G. e. 
robinsoni occurs, all mention of which is omitted by Mr. 
Baker. Specimens from Petchaburi and Meklong River 
(collectors Pierre and Hunter, not Hume) in the British 
Museum are almost certainly of the race now described. 
Diagnosis. In size and general appearance not separable 
from G. c. heesei from Hast Siam and Indo-China, but with 
a markedly smaller bill: 41°5-43 mm. in males and 40-43 
in females, against 46-49 (5 males) and 43-46°5 (5 females) 
of G. c. hessei. 
Types. & 2 ad. Koh Lak, Rajburi, S.W. Siam, collected 
on 6th and 8th April, 1919, by H. C. Kobinson and C. Boden 
Kloss. Original Nos. 5160 (3), 5102 (2). 
Measurements. Total length, ¢ 323 mm., ? 320; wing, 
& 147, 2.142; tail, ¢ 122, 9 113; tarsus, g 29, 9 28:5; 
bill from gape, ¢ 438, 2 42. 
Gecinus vittatus connectens, subsp. nov. 
Gecinus vittatus eisenhoferi Robinson, Journ. Fed. Malay 
States Mus. vii. p. 164 (1917). 
Further examination of our series of this group convinces ~ 
us that the birds of Langkawi Island off the west coast of 
the Malay Peninsula are distinct from the typical form from 
Java (G. v. vittatus). 
Larger than Sumatran, Javan, and Malay Peninsula birds, 
wing always exceeding 132 mm.; slightly smaller than 
Gecinus viitatus eisenhoferi from North and Hast Siam. 
Differs from both forms in having the back and wings dark 
grass-green with no tinge of bronze, rump as in other forms 
golden-green. . 
