THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 319 



Cisticola exilis subsp. 



Malurus exilis, Vig. & Horsf., Trans. Linn. Soc. xv, 1827, p. 223 



(New Sovxth Wales). 

 Cisticola exilis (volitans), Williamson, Journ. N. H. Soc. Siam, i, 



1914, p. 197 (Bangkok). 



In the absence of material we cannot deal with the birds of 

 this genus occurring locally. Two forms appear to be represented. 



Prinia sp. 



Drymoica extensicauda, A., p. 350 (Tavoy). 

 Prinia blanfordi, C. i, p. 112 (Tavoy). 



A form of Prinia may be found in our area, since birds of 



this genus occur in Tavoy and Bangkok. The former are Prinia 



blanfordi ( Walden ) from Tounghoo : the latter have been 



named Prinia inornata herherti by Baker (Bull. B. O. C. xxxviii, 



1918, p. 39, id. M., p. 208) who further says that in Siam and Tenas- 

 serim and in the Malay Peninsula the rufous form P. i. blanfordi is 

 found. The statement appears to be without foundation. Such speci- 

 mens as we have seen from Siam appear inseparable from Prinia 

 2Jolychroa (Temm.) from Java (cf Kloss, Journ. N. H. Soc. Siam, iii, 



1919, p. 451). 



452. Acrocephalus arundinaceus orientalis (Temm. & Schleg.). 



Salicaria turdiiia orientalis, Temminck & Schlegel, Faun. Japon., 



Aves, 1847, p. 50, pi. 20 B (Japan). 

 Acrocephalus orientalis, A., p. 338 (Tavoy, Malewoon) ; B., p. 10 



(Junk Seylon) ; 0. i, p. 93 (S. Tenasserim). 



2 2:Namchut, Pakchan, P. Siam, 24-26 Feb. 1919 [Nos. 

 4201, 4245]. 



" Iris dark ; bill yellow, culmen dark, or maxilla dark, man- 

 dible pinkish horn ; feet yellowish lead or dull greenish slate." 



Total length 193, 194; wing 84, 83; tail 83, 80; tarsus 31, 

 29 ; bill from gape 23, 25 mm. 



453. Acrocephalus bistrig-iceps Swinh. 



Acrocephalus bistrigiceps, Swinhoe, Ibis, 1860, p. 51 (Amoy) ; A., 

 p. 338 (Tavoy) ; H., p. 150 (Koh Pennan). 



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



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



J. Robinson, Journ. F. M. S. Mus. vii, 1917. M. I. Baker, op, cit., iv. 1920 (third part). 



K. Kloss, Ibis, 1918. M. 2. Baker, Fauna Brit. Ind., Birds, i, 1922. 

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



iii, 1919. 



VOL. V, NO. 3, 1924. 



