424 MR. E. C. STUART BAKER ON 
This bird agrees perfectly with typical malaccensis, which 
varies greatly in size in the same locality. 
Kloss’ CL im. perlatus appears to me to be nothing more 
than malaccensis. It is describel, as is Cf. lylei, from a single 
specimen, 
161. DENDROCOPUS PECTORALIS PECTORALIS, 
Picus pectoralis, Blyth J. A. 8. B. xv, p. 15 (1846). 
2 5 2 Bangkok, 5. 7. and 17.12.15. 
These specimens are quite normal, and call for no remark. 
162. CHRYSOCOLAPTES GUTTACRISTATUS DELESSERTL 
Indopicus delesserti, Math. N. Class. Mem. Acad. Metz (1848) p. 343. 
d Krabin, C. Siam, 2.11.15. 
3 Maprit, P. Siam, 2.1.16. 
¢ Klong Bang Lai, P. Siam 30.1.16. 
Elsewhere, (Ibis 1919 p. 197), I have shewn that T can- 
not divide the birds of Southern India from those of Peninsular 
Burma and Siam, so they all must bear Malhorbe’s name of delessert?. 
The other subspecies which seem to me to be good are C. y. gutta- 
cristatus from Bengal, North and South Assam and Burma, and 
C. y. swltaneus from North-West India and Nepal. It is one of the 
many cases of parallel evolution of sub-species of northern birds as 
they descend south in India and Burma, carried out in this instance 
toan unusually similar result. 
163. MICcROPTERNUS BRACHYURUS WILLIAMSONI. 
Kloss, [bis 1918 p. 197. 
° Meklong, C. Siam, 28.6.15. 
‘’ Samkok, C. Siam, 31.8.15. 
* Bangkok, 6.3.16. 
The Samkok bird may be wrongly sexed, as it shews no 
trace of the red moustache, although it appears to be fully adult. 
The wings of the three birds measure respectively @ 125 mim., 
120 and 122 mm. 
Kloss has recently described this new sub-species from a 
single specimen collected at Koh Lak, S. W. Siam. Unfortunately 
JOURN, NAT. HIST, SOC, SIAM. 
