Journal of the Federated Malay States museums - Sabrizain.org

1 62 Journal of the F.M.S. Museums. [Vol. VII.
d-g- Z s , i ? Telok Wan, Pulau Terutau. 18-24U1
December 1916. [Nos. 3658, 3678, 3723.
3730-]
/;-*'. $ ? Chong, Trang. S. W. Siam 11 1 5th
December 1909. [F.M.S. Mus. Nop. 395.
396/10.]
j. i vix ad. Koh Samui, Bandon Bight, S. E.
Siam. 8th May 1916.
" Iris orange, bill dark greenish shite, feet olive green."
The detailed measurements of two males from Terutau,
taken in the flesh are : TL.
287, 290 ; W,
164. 157 : T.
97, 95 ;
B, 50, 54; TS. 31,28.
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 specimens,
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. viii, 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 Picus
guttacristatus (Journ. Asiat. Soc. Bengal) lii, 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. delessertii, 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 tlie 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 averaging
177 mm.
C. guttacristaius guttacristatus. Eastern Bengal,
Burma, etc. Wing 161 or perhaps slightly more. •