354 MESSRS. ROBINSON AND KLOSS ON 



The question of the various races ot" this genus has been dis- 

 cussed at great length by various authors, notably Finsch (Notes 

 Leyden Museum, xxi, 1899, pp. 1-22 pts. 1-2) and Stresemann 

 (Nov, Zool. xix, 1912, pp 312-313). As regards the mainland dis- 

 tribution of the forms with which we are now dealing, our conclu- 

 sions conform to tliose of the latter author. We are not prepared to 

 give a name to the island birds. As a matter of geography the 

 islands are in or near the border line of the two races, and their in- 

 habitants may owe their indeterminate characters to hybridism, the 

 species being one which is a favourite cage bird and the human 

 inhabitants of the islands being of more roving habits than those of 

 the mainland. 



On the other hand, birds from the Johore Archipelago, which 

 are in communication with a mainland inhabited by G. j. javana only, 

 confirm closely to that bird. 



We use the name intermedia for convenience and do not 

 imply that the birds here dealt with are necessarily strictly conspecific 

 with the original type which came from the Himalayas (c/. Hay, 

 Ibis, 1871, p. 176). 



509. Aplonis panayensis strigatus (Horsf. ). 



T Urdus strigatus, Horsf., Trans. Liuu. Soc. xiii, 1821, p. 148 



(Java). 

 Calornis chali/baeus, A., p. .394 (Tavoy to Malewoou) ; B., p. 35 



(Junk Seylon) ; C. i, p. 390 (S. Tenas'serim) ; D., p. 66 (Patani) : 



E., p. 67 (Patani) ; F., p. 68 (Trang) ; H., p. 151 (Koh Pennan 



& Koh Samui). 

 Aplonis panayensis strigatus, J., p. 185 (Lem Pia, Trang) ; L., 



p. 117 (Ghirbi ; Pulo Panjang). 



c? , 9 . Koh Pipidon, P. Siam, 5 Feb. 1919 [Nos. 3936-7]. 

 6,9. Pangnga River, P. Siam, 11 Feb. 1919 [Nos. 3952-3]. 

 d . Mamoh, Pakchan, P. Siam, 25 Feb. 1919 [No. 4321]. 

 " Iris red ; bill and feet black ". 



Total length c? , 215, 200, 203; $ , 196, 209 ; wing 6 , 104, 95, 

 98 ; $ , 95, 96 ; tail 6 , 75, 68, 67 ; 9 , 63, 70 ; tarsus J , 24, 21, 23 ; 

 9 , 22.5, 23 ; bill from gape 6 , 26, 23, 26 ; 9 , 25, 22 mm. 



A. Hume & Davison, Stray Feathers, vi, 1878. £■ O. Grant, Fasciculi Malayenses, iii (Birds), 1905. 



B. Miiller, Die Ornis der Insel Salanga, 188'2. F. Bobinson and Kloss, Ibis, 1910-11. 



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



D. Bonhote, P. Z. S. 1901, Vol. i. H. Robinson. Joui-n. F. M. S. Museums, v, 1915. 



JOURN. NAT. HIST. SOC. SIAM. 



