286 MESSRS. ROBINSON AND KLOSS ON 



Pomatorhinns olivaceus oUraceus, Harington, Journ. Nat. Hist. Soc. 



Bomhay, xxiii, 1914, p. 332 (parthu : Tenasserim) ; M. 2, p. 209 



(S. Tenasserim ; Malay Peninsula). 

 Pomatorhinus olicaceus siamensis, Baker, Bull. Brit. Orn. Club 



xxxviii, 1917, p. 8 ; M., p. 184 (Patiyu). 



c? , 6 . Tapli, Pakchan, P. Siam, 6-7 March 1919 [Nos. 4448, 

 4482]. 



3 d . Tasan, Cliumporn, P. Siam, 15-22 March 1919 [Nos. 4604, 

 4725, 4773]. 



" Iris pale orange or yellow, iu one case lavender ; bill yellow, 

 black at extreme base of upper mandible; feet pale greenish slate". 



Total length j , 213, 218, 230, 225 ; $ , 214; wing d , 91, 95, 

 93, 96 ; 2 , 92 ; tail e , 94, 103, 102, 104 ; $ , 95 ; tarsus 6 , 31.5, 32, 

 32, 34; 9 , 31 ; bill from gape 6 , 29, 30, 29.5, 29.5 : 2 , 30 mm. 



From north to south, along the Tenasserim-Siam hill ranges, 

 the following races of this Scimitar-billed Babbler have been described. 



(1). Pomatorhinus olivaceus 7'ipponi Harington. 



Bull. Brit. Orn. Club, xxvii, 1910, p. 9 (Shan States). 

 Specimens examined from Me Wang, North Siam. 



(2). Pomatorhinus olivaceus olivaceus Blyth. 



Journ. Asiat. Soc. Bengal, xvi, 1847, p. 451 (Ye, Tenasserim). 



(3). Pomatorhinus olivaceus siamensis, Baker, loc. cit. supra (Pati- 

 yu, S. W. Siam). 



(4). Pomatorhinus olivaceus fastidiosus, Hartert, loc. cit. supra 

 (Trang, Peninsular Siam). 



Nos. 1 and 4 are sufficiently dist-nct from each other, being 

 the extremes of the range : No. 2, as might be expected from its 

 locality, is intermediate ; but we still remain sceptical as to the valid- 

 ity of Baker's No. 3, though his amended remarks make it appear 

 that his race may come very near to the form we have recently des- 

 cribed from the mountains of Annam, which, however, has a decidedly 

 smaller bill (P. o. annamensis, Ibis, 1919, p. 577). 



396. Pomatorhinus hypoleucus tickelli Blyth. 



Pomatorhinus hypoleucus var., Blyth, Journ. Asiat. Soc. Bengal 



xxiv, 1855, p.' 273 (Muleyit). 

 Pomatorhinus tickelli, Blyth, Tickell, Ibis, 1863, p. 113 (Mulevit) : 

 ', 1, p. /b. 



A. Hume i: Davison, Stray Featliers, vi, 1878. E. O. Grant, Fasciculi Malayenses, iii (Birds), 1905. 



B. Miiller, Die Ornis der Insel .Salantra, 188-2. F. Robinson and Kloss, Djis, 1910-11. 



C. Gates, Birds Brit. Burmah, Vols, i i ii. 1883. G. Gairdner, Journ. N. H. Soc. Siam, i, 1915. 

 O. Bonhote. V. '/.. S. 1901, Vol. i. H. Bobinson, Journ. F. M. S. Museums, v, 1915. 



JOURN. NAT. HIST. SOC. SIAM. 



