A COLLECTION OF BIRD-SKINS FROM SIAM. 185 
different to, and much darker and greyer than, the back, whereas in 
P. n. klossi these parts are practically concolorous. 
I should not have named this bird from the single specimen 
obtained by Mr. Herbert, but I find that two birds collected by Mr. 
C. Boden Kloss at Klong Menao, S. E. Siam, fully bear ont the above 
diagnosis. 
Dimensions as in P. nx. nuchalis. 
12. PELLORNEUM RUFICEPS SUBOCHRACEUM. 
Pellorneum subochraceum, Swinhoe, A M,N. H. (4) vii. p. 257 (1871). 
2 Hup Bon, 8. EH. Siam, 23. 7. 15. 
3 ¢ Klong Wang Hip, P. Siam, 3-10. 10. 15. 
2 Krabin, C. Siam, 14. 11, 15. 
2d Pak Jong, E. Siam, 29. 11. & 1. 12. 15. 
3 Maprit, P. Siam, 10. 1. 16. 
¢ Klong Bang Lai, P. Siam, 29. 1. 16. 
This fine series of Tit-Babbler from so many localities is very 
consistent throughout, and quite typical of the sub-species in all its 
characters. 
13. DRYMOCATAPHUS NIGRICAPITATUS, 
Brachypteryx nigricapitata, Eyton, P.Z.S, 1839, p, 103, 
3 Tung Song, P. Siam, 21. 9. 15. 
This single specimen calls for no special remark. 
14. CORYTHOCICHLA BREVICAUDATA LEUCOSTICTA. 
Corythocichla leucosticta, Robinson, Journ, Fed. Mal. States Mus, p.104 
(1914). 
Corythocichla brevicaudata herberti, Baker, Bull, B,O.C, No, cexxvil, 
p- 10 (1917). 
¢ Tung Song, P. Siam, 16 Y. 16. 
1 unfortunately overlooked leucosticta when comparing this 
specimen, and described it as a new sub-species, but, as Kloss has 
pointed out (“ Ibis,” October 1918), it is undoubtedly nothing more 
than leucosticta. Whether Jeucosticta is a sub-species or species is at 
present doubtful, but it is extremely likely that it will be found breed- 
ing in the same area as C. b. venningi, and if so, it will have to be raised 
to the status of a species. 
The position of the two genera Corythocichla and Turdinulus— 
VOIz JIT NO; TET, -Lor9: 
