184 MR. E. C. STUART BAKER ON 
eggs is three or four and rarely even five; in the Southern form it 
appears to be generally two, sometimes three 
9, EUPETES MACROCERCUS GRISEIVENTRIS, 
Baker, Bull, B.O.C, No. cexxvii, p. 8 (1917). 
$ Tung Song, P. Siam, 17.9. 15. Type. 
? Tung Song, P. Siam, 16. 9.15. Type. 
¢ Tung Song, P. Siam, 24. 9. 15. 
These three specimens. which are all adult birds in perfect con- 
dition, differ from any of the very large series in the British Museum 
in having a mach greater extent of the abdomen grey, of a pure slaty- 
blue tone. There is one bird in the Tring Museum which has more 
grey on the abdomen than any of the British Museum birds, but even 
this has not nearly so much as the Siam specimens. 
Peninsular Siam is somewhat of an extension of the range of 
this remarkable genus, which until recently had not been found further 
North than Province Wellesley in the Malay Peninsula. 
10. POMATORHINUS OLIVACEUS SIAMENSIS. 
Baker, Bull. B O. C., No, cexxvii. p. 9 (1917). 
3 2 Maprit, P. Siam, 27. 12. 15. Types. 
2 Maprit, P. Siam, 8. 1. 16. 
3 ¢ Klong Bang Lai, P. Siam, 18. 1. 16. 
This sub-species is very much darker than either P. 0. olivaceus 
or P. 0. rippont, and has also a still darker tail in comparison with the 
rest of the upper plumage. The differences are only a question of 
degree of darkness, and can hardly be appreciated unless in actual 
comparison between shins. 
From Hartert’s fastidiosus it differs in having richer, and more 
extensive red on the flanks, and in being somewhat redder above. 
11. POMATORHINUS NUCHALIS KLOSSI. 
Baker, Bull, B. O. C, No, cexxvii. p. 9 (1917). 
? Samkok, C. Siam, 16. 6. 15. 
Differs from P. nuchalis nuchalis in being very much dark er, 
and in having the rufous of the flanks and sides of the neck a deeper 
richer chestnut. The upper aud lower aspects of the tail are almost 
black, and much darker in contrast to the back than it is in P. a. 
nuchalis. Again, in this latter bird, the colour of the head is quite 
JOURN. NAT. HIst. SOC SIAM. 
