THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 297 



417. Stachyris nigricollis (Temm.). 



Timalia nigricoUis, Temm., PI. Col. 594, fig. 2, 1836 (Borneo). 

 /Stachyris nigricoUis, F., p. 62 (Trang.) ; Williamson, Journ. IST. H. 

 Soc. Siam, iii, 1918, p. 17 (Bangnara, Patani). 

 ' Rare in Trang, beyond which state it does not extend north- 

 wards. 



418. Stachyris poliocephala diluta Rob. & Kloss. 



Stachyris poliocephala dilutee, Robinson & Klo.ss, Ibis, 1912 p. 587 



Taiping, Perak). 

 Stachi/ris polioce2)fiala, F., p. 62 (Trang) ; M., p. 188 (Tung Song). 

 Distribution as in the preceding species. 



419. Stachyridopsis rufifrons obscura Baker. 



S'tctchyridopsis rufifrons ohscura. Baker, Bull. Brit. Orn. Club, 

 xxxiii, 1917, p. 10 (Patiyu) ; M , p. 188 (Patiyu) ; M. 2, p. 270, 

 footnote (S. W. Siam). 



Stachyris rufifrons, A., p. 265 (Mergui, Bahonee). 



Stachyrido2)sis rufifrons, C. i, p. 54 (Tenasserim). 



Stachyridopsis rufifrons poliogaster, Robinson & Kloss, Ibis, 1918, 

 p. 587 (Patiyu). 



3 c? , $ . Tasan, Chumporn, P. Siam, 18-22 March 1919 [Nos. 

 4553. 4677, 4703, 4782]. 



" Iris red or brown ; bill dark horn, lower mandible pinkish 

 horn; feet brownish yellow." 



Total length S , 119, 123, 125 ; $ , 116 ; wing 6 , 48, 50, 54 ; 

 $ , 51 ; tail S , 51, 48, 50 ; $ , 48 ; tarsus 6 , 18, 19, 18 ; 2 , 18 ; bill 

 from gape J , 14, 14, 15.5 ; $ , 15 mm. 



We must freely admit that we were wrong in identifying 

 this race with St. r. poliogaster, of which we now possess specimens 

 from various parts of the Malay Peninsula, Sumatra and Borneo. 



Mr. Baker's subspecies is quite distinct, and may be recognized 

 by its paler forehead and crown and by the more fulvous sides of the 

 head. 



420. Stachyridopsis chrysaea chrysops (Richm.). 



Stachyris chrysoj)s, Richmond, Proc. Biol. Soc. Wash, xv, 1902, 



p. 157 (Trang). 

 Stachyris assimilis, A., p. 514 (Nwalabo) ; C. i, p. 53 (Nwalabo). 

 Stachyridopsis ch^ysojys, H., p. 104 (Bandon). 



I. Gyldenstolpe, Kungl. Sv. Vet. Akad. Haudl. M. Baker, Joui-n. N. H. Soc. Siam, iii, 1919. 



56, No. 2, 1916. (first and second parts). 



J. Robinson, Journ. F. M. S. Mus. vii, 1917. W- 2. Baker, Fauna Brit. Ind., Birds, i, 1922. 



K. Kloss, Ibis, 1918. 



L. Robinson and Kloss, Journ. N. H. Soc. Siam, 



iii. 1919. 



VOL. V, NO. 3, 1924. 



