Ropinson & Kioss : Birds of West Sumatra. 291 
Lives in secondary forest, at the edge of clearings and 
in plantations. ; 
(The quite different colour of the iris in some birds 
I cannot account for; it does not seem to be the consequence 
of age or sex, and in plumage and other characters the 
specimens with the brownish cream irides cannot be dis- 
tinguished from those with the reddish ones). The whitish 
iris is as a rule characteristic of Pyc. simplex (Less.), of 
which however, Mr. Jacobson’s collection does not contain a 
specimen. 
230. Pycnonotus erythropthalmos cyanochrous Oberholser. 
IRs @% IMS US jag. aly 
9. Andalas, Tandjung, Padang Highlands, 720 M. 
32. Balun, Muara Labu, Padang Highlands, 
480 M. 
6,32. Mt. Talamau, Ophir Districts. 
Iris brownish crimson, dark orange red, or terracotta 
brown. In one specimen (No. 4181) brownish cream 
(buff): the totally different colour of the iris is not the 
consequence of age, as the bird had well developed ovaries 
and therefore was fullgrown. Eyelids yellow, bill black, 
nostrils and gape yellowish, feet purplish pale sepia, digits 
darker. 
Wings, ¢ 75; 2 76, 75, 74, 74, 73, 73, 71 mm. 
Contents of stomach: fruit (berries, fruit of 
Laportea stimulans, etc.). 
Lives in secondary forest, at the edge of clearings, and 
in plantations. 
The difference in colour of the irides noted above is 
interesting as the colour appears in this group to have 
specific significance. 
231. Pycnonotus bimaculatus barat Rob. and Kloss. 
Pycnonotus bimaculatus R. & K., I, p. 180; R. & K., Il, p. 112. 
Pycnonotus bimaculatus barat R. & K., Ill, p. 103. 
6, 2. Tanangtalu, Ophir Districts, 1000 M. 
6, 2?imm. Mt. Talamau Plateau, Ophir Districts, 
2800 M. 
é. Alahan Pandjang, Padang Highlands, 1500 M. 
2. Sungei Kumbang, Korinchi, 1400 M. 
?. Suban Ajam, Mt. Kaba, Bencoolen, 1000 M. 
Iris dark brown, sometimes yellowish brown, bill black 
or brownish black, feet and claws black or blackish. 
Wings, ¢ 93, 92, 91,98; @ 88, 87, 84 imm. 
A common bird of the scrub jungle at high altitudes, 
occuring also in secondary and rarely in old forest. This 
