THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 181 



We can perceive no difference between Sumatran, Bornean or 

 Malayan birds either in .size or colour. 



279 Micropternus brachyurus squaraigularis Sundev. 



J'u'iiss(/aawi(/itla7-U, Sundevall, (A)iisp. Picin , iHOfi, p. 89 (Malaei-a). 

 Microj)ternus hrachi/urus, B., p. 72 (^.Jiiiik Sevloii) ; D., p 72 



,Patani); H., p. 95 (B.ndon). 

 MicrojJternus phaioc&ps, E.. p. 99 (Patani) ; L., ]). 102 (Ghirbi). 



2. Mamoh, Pakchan, Peninsular Siam, 27 February 1919 

 (No. 4280). 



() cT,2 9, 1 9 inim. Tapan, Chumporn, Peninsular Siani. 13-24 

 March 1919 [Nos. 4280, 4545, 4602, 4687, 4652, 4731, 479], 4798, 

 4831, 4844]. 



"Iris hazel; bill black, base of lower mandible slate ; feet 

 brownish black." 



Total length c^, 237, 228, 236, 236, 230; 9, 225, 241, 231 ; 

 wing J, 120. 112, 118, 116, 112, 115; 9, 118, 122, 117; tail 6, 70, 

 70, 70, 67, 72, 70; 9, 72, 68, 73; tarsus 6, 22, 20.5, 20, 21, 23, 22; 

 9, 22, 22, 26; bill from gape c^, 28, 27.6, 28, 27, 28, 27.5; 9, 28. 30, 

 28 mm. 



The above are not typical squamigularis, but are best placed 

 with that race. The black barring is much heavier than in the fol- 

 lowing subspecies and the throats are much darker. 



280. Micropternus brachyurus williamsoni Kloss. 



Mkropternns hrachyruiis irilliamsoni, Kloss, Ibis, 1918, p. 107 



(Koh Lak, S. Wl Siam) ; M., p. 424 (Bangkok, Meklong) : Baker, 



Ibis, 1919, p. 202. 

 Mic7-opte7"nus phaioceps, A, pp. 145, 501 (Tavoy and Nwalabo). 

 Micropterntbs hrachyurtis. A., p. 145 (Mergui to the Pakchan); 



C. ii, p. 58 (Mergui to Malewoon) ; G., p. 149 (Ratlairi or 



Petchaburi) ; M, p. 425 (Patiyu). 



3 c^ 2 9! Koh Lak. S. W." Siam, 2-7 April 1922 (Nos. 4931, 



5059, 5109, 5146, 5183). 



" Iris hazel ; bill black, grey at base ; feet brownish black." 

 Total length c^ 232, 235, 248; 9, 238, 238. wing d, 120, 118 



(worn), 122 ; 9, 116, 116; tail 6, 67, 75 (worn) 68 ; 9, 73, 67 ; tarsus 



!• GyldenstoliX), Kunsl. Sv. Vol. Akad. HiiinU. M. Uuker, .Tcmiii. N. H. Soc. Siam. iii, 1919. 



, „ , •'">6. No- -i. 191 (i. (first part). 



J. Robinson, .Tonrii. V. M. S. Mus. vii, 1917. Bukor. .Tourn. X. H. Soc. Siam, iii, 1919. 



K. Kloss. Tbis, 191H. (second part). 



U. Robinson and Kloss, Journ. N. H. Soc. Siam, M. I. Baker, Journ. N. H. Soc. Siam, iv, 1920. 



iii. 1919. (third part). 



VOL. V, NO. 2, 1922. 



