102 MESSRS. ROBINSON AND KLOSS ON 



150. Circus melanoleucus (Forst.). 



Falco vielanohucus, For iitev, Ind. Zool. 1781. p. 12, pi. ii. 



Circus mehmoIeucKs, A., p. 21 (Tavoy, Malewooii, and Tongka) ; B., 

 p. 78 (Junk Seylon). 



6 ad. 9 inmi. Namchuk, Pakchan, Peninsular Siam. 24-25 

 February, 1919. (Nos. 4202, 4230). 



"Male. Iris and feet chrome ; bill black." Female. Iris lemon; 

 bill slate, cere and base yellowish green ; feet pale yellow. 



Total length, c? 442, 9 463; wing, 6 352, 9 364; tail, 6 217, 

 9 240; tarsus, 6 67, 9 80; bill from gape, d 28, 9 32, mm. 



This beautiful Harrier is a rare winter visitor to the southern 

 parts of the Malay Peninsula as far south as Johore ; Mr. Seimund 

 has obtained several specimens in the swampy plains near Kuala 

 Lumpur. It is common in Peninsular and S. W. Siam wlience we 

 have seen many specimens. 



Circus spilonotus Kaup. 



Circus spilonotus, Kaup hi Jardine's Contr. Ornitb. 1850, p. 59 

 (Asia) ; Williamson, Journ. Nat. Hi.st. Soc. Siam. iii, 1918, p. 

 29 (Bangkok, and Tachin river mouth). 

 Occurs in small numbers in the Malay Peninsula, but often 

 confused with the preceding. 



151. Circus asruginosus aeruginosus (Linn.). 



Falco ceruginosics, Linn. Syst. Nat. i, 1766, p. LSO (Europe). 



Circus cerucjinosus, A., p. 22 (Pakchiui) ; B., p. 78 (Junk Seylon) ; 

 F., p. 21 (Langkawi Ids.) ; I., p. 124 (Koh Lak). 



2 c?, 9, Namchuk, Pakchan, Peninsular Siam. 25-26 Feb- 

 ruary. 1919. (Nos. 4231, 4232, 4253). 



" Male. Iris lemon ; bill slate, cere and base yellowish green ; 

 feet pale yellow. Female. Iris yellow; bill black, cere and base 

 greeni.sh slate ; feet dirty yellowish." 



Total length, c? 510, 535, 9 521; Aving, 6 395, 403, 9 400; 

 tail, d 243, 250, 9 235 ; tarsus, c? 85, 85, 9 88 ; bill from gape, 

 J 40, 38, 9, 32 mm. 



A- Hume ic Davison, Stray Feathers, vi, 1878. E. O. Grant, Kasciculi Malayenses. iii (Birds), 1905, 



B. Muller, Die Ornis der Insel SalanKa, 1882. F. Kobinson and Kloss, Ibis. 1910-11. 



C. OatCi, liirds I$rit. Burmah, Vols, i i: ii. 1883. G. (iairdner, .Toinii. X. II. Soc. Siam. i, 1915. 



D. Bonhote, P. Z. S. 1901, Vol. i. H. Kobinson, Juiirn. F. >I, S. Museums, v, 1915. 



JOURN. NAT. HIST, SOC, SIAM, 



