NOTES AND ADDITIONS, 171 
Some of the biological information was furnished by 
my native hunters, who could not very well distinguish 
between closely allied species of birds, and consequently 
some of my biological notes refer to other species than 
those under the heading where they are to be found in 
the list. 
I am therefore very much indebted to Mr. Max Bartels 
at Pasir Datar (Preanger), who pointed out to me several 
errors in my biological notes. 
I may be allowed to reproduce here his remarks with 
his name put in parenthesis. 
pag. 107. Mesophoyx intermedia Wagler. lt is not this 
species which is often seen in company with cattle, but 
Bubulcus ibis coromanda (Boddaert) (Bartels). 
pag. 115. Zotanus totanus eurhinus Oberholser. The feet 
of this species, which hibernates in Java, are indeed of a 
red colour and not yellow (Bartels). 
pag. 131/132. Cyanops armillaris (Temminck). What has 
been recorded under this head about the call of » boeltok”, 
refers to Cyanops lineatus (Vieillot), The Malay name 
»boeltok” given for C, armillaris has to be transferred in 
the list to C. lineatus, 
C. armillaris, being an inhabitant of the mountains, does 
not frequent the lowlands, and therefore will hardly be 
known to many Malays. Its call is quite different from 
that of C. lineatus, and the Sundanese names »térolok”’ 
and »tohtor” resemble somewhat its call (Bartels). 
pag. 133. Eurylaimus javanicus Horsfield. The colour of 
the bill is not »wholly light blue”, as stated by Mr. Ja- 
cobson’s hunters. The bills of all the many birds of this 
species which have passed through my hands were only 
partly blue. An exact description of the shades of the bill 
of E. javanicus has been published recently by me in the 
Journal fiir Ornith. Juli 1910, pag. 487 (Bartels). 
pag. 138. Pteruthius flaviscapis (Temminck). I rather 
doubt the correctness of Mr. Jacobson’s statement that this 
species lives in small flocks in woods. I have always found 
Notes from the Leyden Museum, Vol. XXXIII. 
