98 NILS GYLDENSTOLPE, ZOOLOGICAL RESULTS OF THE SWEDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 
Trides: brown. Bill: yellow with the tip blackish brown. Legs: greenish olive. 
The Great Chinese Barbet was not uncommon among the hills of Northern Siam. 
A fine series was obtained and among these birds there is a considerable amount of vari- 
ation as to the yellowish streaks of the hind neck. In some specimens these streaks are 
very well-marked, but in other ones they are almost absent or only faintly indicated. 
This fine Barbet inhabits the deciduous forests'as well as the evergreen jungles though 
it seems to be more sparsely distributed in the former kind of vegetation. 
Their note is a loud »pio-pio-pio», often repeated and when one bird starts calling 
the other ones in the flock at once answer. 
186. Cyanops asiatica. Latru. — The Blue-throated Barbet. 
GQ Doi Par Sakeng °/; 1914. L = 208 mm.; W = 103 mm.; T= 71 mm.; C = 24 mm. — @ Doi 
Vieng Par 18/7 1914. L = 195 mm.; W = 97 mm.; T = 67 mm.; C = 25 mm. — ¢ Koon Tan */; 1914. 
L = 235 mm; W= 106 mm; T=74 mm; C = 25 mm. — of Koon Tan 5/6 1914. L = 213 mm.; 
W = 105 mm.; T = 73 mm.; C = 24. — Irides: brownish red. Bill: horn colour, base dirty yellow. Legs: 
greenish olive. 
This species was only found in the dense evergreen jungles among the hills of North- 
ern Siam and was nowhere common, the commonest species being Cyanops davisoni, 
Hume. This latter species was, however, more an inhabitat of the mixed deciduous jung- 
les than of the damp evergreen forests. The notes of the two species’ are quite similar 
and their habits are the same too. 
187. Cyanops davisoni. Humr. — Davison’s Blue-throated Barbet. 
Cyanops davisoni: Gyldenstolpe III p. 230; Robinson I p. 94; Gairdner p. 149. 
Sex Locality Date Length | Wing Tail Culmen | Tarsus 
mm. mm. mm. mm. mm. 
ee Koon Tan M/s 1914 220 98 63 22.5 20 
fe) Koon Tan 19/) 1914 198 97 65 29 22 
2 Koon Tan 29/4, 1914 216 103 73 25 21 
J Nong Bea fr 1914 200 101 66 23 | 9 
o | Doi Par Sakeng ; 1/7 1914 188 100 64 2 |) (Ql 
fe) Doi Par Sakeng | 4/7 1914 213 99 66 22 23 
o | Doi Par Sakeng | '4/r 1914 221 101.68 22 22 
o Koon ‘lan 23/5 1914 205 95 64 21 2 
o Koon Tan | “Jo 1914 | 200 100 63 20 22 
Irides: brown. Bill: upper mandible horn colour, lower mandible dirty yellow, base of both mandibles 
dirty yellow. Legs: greenish olive. 
Davison’s Blue-throated Barbet, which was originally described from the Central 
portions of Tenasserim, was rather common among the hill-forests of Northern and North- 
western Siam where a fine series was obtained. 
As compared with specimens from Ahsown in Tenasserim the Siamese birds are 
absolutely identical and there is no difference either in size or colour. 
