THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 29 



pp. 88,140 (Riindon, Koh Samui and Kr.h Pennan) ; J , p. 135 

 (Laiigkawi Islands) ; L , p. 89 (Gliirbi and inlands). 

 Treron vernans remans, M.l, p. 31 (Tung Song and Patiyu). 



A connnoii ])ir(l tli!on^h(jut our re<^ion in suitahle localities. 

 P.O. Treron bicincta praetermissa Rob. and Kloss. 



Treron hkincta pnitermissa, Robinson & Kloss, Journ. Fed. Malay 

 States Mus. X, 1921, p. 203 (Koh Lak). 



Osmotreron hicincta, A., p. 411: C. ii, 1883, p. 308; IJ., p. 159 

 (Salanga) ; F., p. G74 (Tmng) ; (I, p. 151 (Ilatbuii it ri-tchabuii). 



Osmotreron hicincta domrillii, Stuart Baker, Indian Pigeons & 

 Doves, 1913, p. 49 ; I., p. 154 (Koh Lak) ; L., p. 89 (Ghirbi & 

 Pulau Paiijang). 



6. De Lisle Island, W. Coast Siam. 19 February, 1919. 

 [No. 4121]. 



d$. Koh Lak, S. W. Siam. 5 April, 1919. [Nos. 5075, 7075]. 



" Iris, outer ring pale orange, inner ring blue; bill ivory, 

 greenish at tip ; feet pink." 



Total length 6, 292, 285*; 2, 273*; wing 6, 158,161*; 2, 

 162*; tail d, 103,105*; 9, 100* ; tarsus d, 19, 23* ; 9,21*; bill 

 from gape 6, 22, 22* ; 9, 23* mm. 



DIafinosU Larger than D. h. hisincfa from Madras (wing 

 144): differs from D.h. domv'dl'd Swinh. from Hainan in having 

 the grey nuchal patch in the female clear and more extensive, where- 

 as {fide Hartert) it is "indistinct and small" in the island bird. 



Hartert has inadvertently (Nov. Zool. xvii, 1910, p. 192) 

 described the Ceylon bird as being smaller, though iiis specimens are 

 exactly the same size as the typical birds from Madras. Swinhoe 

 states that his domvillii is smaller than the typical form (presum- 

 ably the bird now described), but this is denied by Hartert. 



E. and S. E. Siam birds appear to be small ; those measured by 

 us have the wing always under 150 mm. 



In addition to the above three specimens, we have examined 

 four males and four females from various localities from Junk 



* Types. 



!■ Gyldenstolpe, Kungl. Sv. Vot. Akad. Handl. M. Baker, Journ. X. H. 8«)C. Siam, iii, 1919. 



56, No. 2, 1916. (tlrst part). 



J. Uohinson. .Tourn. F. M. S. Mus. vii, 1917 Baker. Jouni N.H. Soc. Siam, iii, 1919. 



K. Kloss. Ibis, 1918. (second part). 



L. Itobiiison and Kloss, Journ. X. H. Soc. Sia.n, M.l. Baker, Journ. X.H. Soc. Siam, iv. 1920. 



iii, 1919. (third part). 



VOL. V, NO. 1, 1921. 



