162 Journal of the F.M.S. Museums. [VoL. VII, 
d—g. 34,1? Telok Wau, Pulau Terutau. 18—24th 
December 1916. [Nos. 3658, 3678, 3723, 
3730.] 
hv), 8 $ ‘Chong, “Trang, S. We Siam? arth 
December 1909. [F.M.S. Mus. Nos. 395, 
396/t10. | 
jy. ¢$vixad. Koh Samui, Bandon Bight, S. E. 
Siam. 8th May 1916. 
‘Tris orange, bill dark greenish slate, feet olive green.” 
The detailed measurements of two males from Terutau, 
taken 1n the flesh are; TL. 287, 290; W, 164, 157; T.97, 95; 
1B Oy GS WSs Shen, 
The wing and bill (from gape) of the Langkawi specimens 
taken on the skins are male, W, 156, B. 55; Female, W, 151, 
B. 49; of three other specimens from Terutau:—Males, W. 
159, 154, B. 52, 51. Female, 153, B. 46. Of the Trang speci- 
mens, Male, W. 157, B. 49; Female, W. 150, B. 51. Of 
the bird from Koh Samui, W. 160, B. 52. The dimensions of 
two males from Tonka (the type locality of the subspecies as 
given by Hume (Stray Feath. vill, p. 154) as 6°15 and 6°3 in. 
on the wing. viz. 156 and 160, which agrees well with the 
above series. 
In my paper on the collection made by Mr. Kloss in S. E. 
Siam I unfortunately attributed Tickell’s type of Preus 
guttaeristatus (Journ. Asiat. Soc. Bengal) 11, p. 578 (1833) to 
Northern Tenasserim, where the greater part of his collections 
were made, whereas it was really secured in the jungles of 
Eastern Bengal. As Hume, Oates and Blanford have pointed 
out the Southern Indian bird, C. delessertit, Blyth, that from 
eastern Bengal and the low country adjacent, C. guttacristatus 
(Tick.) and the birds from the northern Malay Peninsula 
approximate in size, though it would appear that the Malay 
birds on the whole averages smaller, the wing never exceeding 
164 mm (6,45 in.) while it is possibly brighter in general tone. 
Chrysocolaptes sultaneus (Hodgs.) from the Himalayas is a 
very large bird indeed and can fairly claim subspecific rank on 
these grounds alone though there are no tangible differences in 
colouration. 
In the Malay Peninsula the bird is common in _ the 
northern third but is unknown from any locality between 
Penang and Southern Johore where a small form occurs, W. 
male, 148, 143; B. 46, 47, which will receive a name in due 
course. This form also occurs abundantly on the islands of 
the Rhio—Johore archipelago south of Singapore. 
It thus appears that in order of size we have the following 
forms. 
C. guttacristatus sultaneus, Himalayas. Wing averag- 
ing 177 mm. 
C. guttacristatus guttacristatus. Eastern Bengal, 
Burma, etc. Wing 161 or perhaps slightly more. 
