430 MR. E. ©. STUART BAKER ON 
5 2 Tung Song, P. Siam, 24.9.15. 
This is a rare and little known bird in collections, and it is 
with some doubt that I apply the name to Mr. Herbert's specimens. 
Incognita ditters from C. a, davisoni principally in having 
the scarlet patch confined to a spot in the middle of the nape, and not 
extended across it. It also differs in having the chin and throat a 
very pale washed-out blue instead of an intense azure blue as in 
asiatica, 
Mr. Herbert’s two birds do not agree well with incognita, as 
they have -broad red foreheads, and no black moustachied streak and 
no yellow feathers round the eye, whilst the head above is more 
blue. Both specimens are young birds, and in the absence of more 
adult material, I forbear to name them, but it will be interesting to 
obtain a further series, and see if these differences are confirmed, 
The feathers on the side of the crown in the older bird are 
moulting, and the new feathers are also blue, shewing that there 
will be no change into the broad red coronal band of asiatica. 
174. CYANOPS DUVAUCELL CYANOTIS, 
Bucco cyanotis, Blyth, J. A. 8. B. xvi, p. 465 (1847). 
Mesobucco duvauceli orientalis, Robinson, Ibis, p. 738 (1915). 
3  Hup Bon, S. E. Siam, 23-27.7.15. 
2 5 2 2 Hinlap, E. Siam, 6-8.12.15. 
The 6 birds,—possibly prepared by the same skinner—are, 
evento the most minute details, exactly the same as those from 
Ok-Yam, upon which Mr. Robinson has founded his new sub-species. 
Mr, Herbert's birds are quite typical cyanotis and are replicas of 
many Others from Sikkim, Cachar, and Northern Burma. They are, 
however, beautiful skins, and shew up as very clean bright speci- 
mens when placed amongst a large number of dirtier, less well-made 
skins; on the other hand, they are in no way different from specimens 
which are equally nicely prepared. Mr. Robinson separates his new 
sub-species on the ground that it is bigger than cywnotis with a 
wing of 83 and 84 inm.; but cyanotis, from all over the area it 
inhabits, runs up to 86 and even 87 mm, As regards the yellow 
intermixture in the red below the eye, this obtains also in many 
JOURN. NAT, HIST. SUC. S1AM 
