KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 56. N:0 2. 89 
half; outer webs of the primaries with white spots; on the inner webs of the primaries 
the white spots are only confined to the basal part of the feathers; malar stripe black 
with white bases and edges to the feathers; the black cap on the head is of a great extent 
almost covering the whole forehead, crown and nape. 
During one of my excursions to a fairly dense evergreen forest at the neighbour- 
hood of Pa Hing I came across a pair of these Woodpeckers and I succeeded in shooting the 
female. Pa Hing is a small hamlet situated in the middle of a large forest on about Lat. 
N. 18° 10". The typical Picus vittatus VInILL. is a southern form and the occurrence of 
a subspecific race of that species as far north as to Lat. N. 18° adds a considerable distance 
to its geographical distribution to the north. Like many other birds the northern forms 
are always growing larger than the southern ones. 
167. Picus viridianus. Bryrxa. —- The Burmese Scaly-bellied Green Woodpecker. 
Gecinus viridianus: Oustalet 1899 p. 253; Grant p. 101; Robinson & Kloss p. 45; Robinson I p. 95. 
Gecinus dimidiatus: Schomburgk p. 257. 
3 Koh Lak 4/12 1914. L = 301 mm; W = 138 mm.; T = 115 mm; C = 35 mm. — §@ Koh Lak 
1/1 1914. L = 290 mm.; W = 136 mm.; T = 122 mm.; C = 34 mm. — Irides: red. Bill: black with the 
base yellowish green. Legs: greenish yellow. 
In the parts of the Siamese Malaya visited during my journey the Burmese Scaly- 
bellied Woodpecker was rather common. It never seems to ascend the higher hills and 
was most often met with in open jungles near the sea-shore, sometimes in company with 
Laughing Thrushes (Garrulax leucolophus diardi Lxss.). 
To the north it has been found as far as Bangkok and its neigbourhood but north 
of that place I never found it. 
My specimens perfectly well agree with the descriptions in the literature but both 
the specimens have much longer wings and tails than recorded. The female specimen in 
my collection has one of the tail-feathers quite white with a whitish shaft. 
It inhabits the Malay Peninsula as far south as the Patani States and Kedah but 
further south its place is taken by the typical race of the allied Picus vittatus VIEIu1. 
168. Picus canus hessei. GyLDENsToLPE.' — The Siamese Grey-headed 
Green Woodpecker. 
Plate 3, fig. 2 & 3. 
Picus canus occipitalis: Gyldenstolpe I p. 47; Gyldenstolpe II; Gyldenstolpe II p. 229. 
Picus occipitalis: Oustalet 1899 p. 255. 
3 Koon Tan */5 1914. L = 308 mm; W = 151,6 mm.; T = 128 mm.; C= 37,5 mm.; Tarsus = 23 
mm. — ff Koon Tan **/9 1914. L = 265 mm; W = 146 mm; T = 113,2 mm; © = 34 mm.; Tarsus = 23 
mm. — § Pak Koh "/, 1914. L == 330 mm.; W = 155,8 mm.; T = 122 mm.; C = 40 mm.; Tarsus = 24,5 
mm. — @ Baag Hue Pong */; 1914. L = 320 mm.; W = 152,5 mm.; T = 122.6 mm.; C = 37,5 mm.; 
Tarsus = 22 mm. — Irides: yellowish white (f); reddish brown (Q). Bill: black. Legs: greenish black. 
Similar to Picus canus occipitalis Vie. from Northern India but distinguished 
by a smaller size. The general colouration is also much brighter than in that species. 
* Ornith. Monatsber. 1916. No. 2, p. 28. 
K, Sv, Vet. Akad. Handl. Band 56. N:o 2. 12 
