450 MR. ©. BODEN KLOSS ON 
large series from that area, none of which, of course, are red-throat- 
ed birds. It is thus not based on one bird only. 
It is now suggested, however, that the specimen was a young 
example of Rubigula johnsoni Gyldenstolpe, and that I. should.con- 
cur if I saw the series Baker had before him. But when I described 
O. f. minor there were available in my own collection a very. 
fair number of topotypes of R. johnsoni (vide Otocompsa flaviven- 
tris johnsoni Kloss, l. ¢. s.); sutficient, ai any rate, for Baker to 
adopt, without comment, my amendment as to its generic position and 
specific name ! 
My definition of South-west Siam is the region between. 
Petchaburi and the Isthmus of Kra (t. ¢, p. 78): this, I presume 
Baker accepts, and I shall be glad to learn from what places in that 
area Mr. Herbert has obtained unquestionable (i. e., red-throated) 
specimens of O. f. johnsoni, which Baker states is common there. No 
one else has recorded it and the distribution now indicated for the 
forms of the species is, at least, interesting—the remarkable red- 
throated johnsoni inserting itself between two black-throated forms 
which are only separable on the character of size ! 
Of the eighteen specimens listed by Baker in this Journal as 
0. f. johnsoni, I suggest that only those from Pak Jong, Hinlap and. 
possibly, Krabin, are examples of the red-throated subspecies. I 
think that the latter is practically confined to the Korat region (i. ©, 
Eastern Siam): apparently it does not occur in South-eastern Siam, 
nor has it been recorded from anywhere in French Indo-China, 
Setaria lepidocephala, Kloss, t. ¢., p, 203. 
Setaria rufifrons, Baker, Ibis 1918, p. 594; id. Journ. t. ¢., p. 186. 
I listed my birds as S. lepidocephala (Gray ) because the 
maximum wing-length of the series was 74 mm., while Finsch, who 
examined the type of S. rufifrons, records it as 80 mm. Mr. Baker 
gives a translation of the original description of rufifrons in which 
the wing is stated to be 3 inches and, transposing this to 76.2 mm., 
says that the latter name is applicable and must stand for the birds 
under discussion. 
He has not, however, realised that Cabanis and Heine would 
JOURN, NAT. HIST. SOC, SIAM, 
