THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 183 



(d). Micropternus brachyurus williamsoni Kloss. 



Micropternus brachyurus ivilliamsoni, Ibis, 1918, p. 107 (Koh Lak, 

 S. W. Siam). 



This form probably ranges over the whole of South Tenas- 



serim and S. W. Siam and grades into : — 



(e). Micropternus brachyurus burmanicus Hume. 



Micropternus burmanicus^ Proc, Asiat. Soc. Bengal, 1872, p. 71 

 (Tliayetmyo, Pegu). 



Still larger, with markings more reduced. 



This race probably occupies all Siam, north of Bangkok, N. 

 Tenasserim and the Shan States, South and Central Burma, and pos- 

 sibly Arracan (wing 129 ram.). North of this area is found : — 

 (f). Micropternus brachyurus phaeoceps Blyth. 



Micropternu,s phaeoceps, Journ. Asiat. Soc. Bengal, xiv, 1849, p. 195 

 (Neighbourhood of Calcutta 1). 



This race is smaller on the whole than burmanicus, less im- 

 maculate, more rufous on the shafts of the primaries and tail 

 feathers. Range — Bengal and Assam, meeting the preceding in the 

 South and East : M. brachyurus mesos in the South-west : and in the 

 North-west : — 



(g). Micropternus brachyurus blythi (Malherbe). 



Phaiopicos Bhjthii, Rev. & Mag. Zool. (2) i, 1849, p. 534 (Nepal). 



Because authors have been unable, or have omitted, to refer 

 directly to Malherbe's own writing, there has been a good deal of 

 confusion about this race which, however, was cleared up by Hesse 

 in 1912 (Mitt. Zool. Mus. Berlin, vi, 1912, p. 195 et seq.). 



Malherbe first called the race Picus rufinotus in 1844, but 

 gave no description : hence the name is invalid. In 1849 (I. c. s./he 

 described the bird and renamed it Phaio2ncus Blythii : " dediee au 



savant directeur du Museum de Calcutta, habite le Nepaul Elle 



a 6t6 apportee par M. Hadgson " (Hodgson). Still later he withdrew 

 blythii and again called the race rujinotus " Le Phaiopic rujinote 



1 The actual types of this form are a male and female collected by 

 E. Blyth in 1844 in the neighbourhood of Calcutta. 



I. Gyldenstolpe, Kungl. Sv. Vet. Akad. Handl. M. Baker, Journ. N. H. Soc. Siam, iii, 1919. 



56, No. 2, 1916. (first part). 



J. Kobinson, Journ. F. M. S. Mus. vii, 1917 Baker, Journ. N. H. Soc. Siam, iii, 1919. 



K. Kloss, Ibis, 1918. (second part). 



L. Kobinson and Kloss, Journ. N.H. Soc. Siam, IWI.I. Baker, Journ. N. H. Soc. Siam, iv, 1920. 



iii, 1919. (third part). 



VOL. V, NO. 2, 1922. 



