BIRDS FROM SIAM AND THE MALAY PENINSULA 141 



The male from Bung Borapet has assumed the adult plumage, 

 except on the tail, where one new central tail feather on the left side 

 is coming in. The head and lower parts are purplish black, while in 

 javanensis, of Peninsular Siam, these parts are greenish black; the 

 northern form is brighter and more russet on the back. 



The range of this form is the southwestern coast of India, Bengal, 

 Assam, Burma, Tenasserim, Siam proper, Laos, Tonldn, Annam, 

 Cochinchina, and southeastern Cliina. In Siam it has been recorded 

 from nearly all over the country and as far to the southwest as the 

 Petchaburi District, where it was recorded b}^ Gairdner^'; to the 

 southeast de Schauensee ^^ has recorded it from Sriracha. It is much 

 less common than C. sinensis inter medius. 



Herbert ®^ found two nests of five and six eggs at Bun Khang 

 (Samkok), June 28 and July 19; and he received one set of three fresh 

 eggs from Ban Yang (Tachin), August 15; he gives a description of 

 the nest and eggs. 



CENTROPUS BENGALENSIS JAVANENSIS (Dumont) 



Cuculus javanensis Dumont, Diet. Sci. Nat., vol. 11, p. 144, 1818 (Java). 



One immature female, Yala, Patani, February 2, 1931. 



Dr. W. L. Abbott took an adult male, Tyching, Trang, May 23,. 

 1896; an immature female, Prahmon, Trang, April 2, 1896; and an 

 adult female on the Bindings, Straits of Malacca, April 15, 1900. 



The adult male taken at Tyching, Trang, was caught while sitting 

 on a nest containing three eggs, in which incubation had commenced. 

 These were saved and are now in the collection. The eggs are oval, 

 dull white, with little or no gloss, and measure 30.2 b}^ 25.3, 29.2 by 25, 

 and 28.7 by 24.4 mm. 



Three specimens (two females and one unsexed) from Java and one 

 male from Banka are available for comparison. 



The adult male from Trang agrees with the male from Banka and 

 the unsexed specimen (almost certainly a male) from Java in having 

 the black of the head and lowerparts with a greenish sheen rather than 

 the purplish of C. h. hengalcnsis. The males in this species seem ta 

 be smaller than the females; this also is the case in other cuckoos. 



The range of the form seems to be Peninsular Siam, Sumatra, 

 Banka, Java, Bali, Borneo, Natuna Islands, and the Philippines. 



The range in Peninsular Siam is not determined. It certainly goes 

 north to Trang. 



Stresemann ^^ in liis revision of the species includes in this form two 

 specimens from Salanga (Puket). 



«' Journ. Nat. Hist. Soc. Siam, vol. 1, p. 150, 1915. 



" Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 259, 1934. 



«3 Journ. Nat. Hist. Soc. Siam, vol. 6, p. 306, 1924. 



M Nov. Zool., vol. 19, p. 337, 1912. 



33527—38 10 



