BIRDS FROM SI AM AND THE MALAY PENINSULA 139 



ward from these localities it seems to be fairly well distributed 

 throughout Peninsular Siam, the Malay States, Sumatra, and Banka. 

 A closely related form, Urococcyx erythrognathus borneensis (Blasius 

 and Nehrkorn), inhabits Borneo. 



RHINORTHA CHLOROPHAEA CHLOROPHAEA (Raffles) 



Cuculus chlorophaeus Raffles, Trans. Linn. Soc. London, vol. 13, p. 288, 1822 

 (Sumatra). 



Four males and three females, Bangnara, Patani, May 28, 1924, 

 July 7-19, 1926; one female, Bukit, Patani, January 26, 1931; two 

 females, Patalung, July 8, 1929; one male and one female, Kao 

 Luang, Nakon Sritamarat, July 17 and 22, 1928; two males and two 

 females, Sichol, Bandon, September 5, 1929, May 20 and 24, 1930; 

 one female, Kao Chong, Trang, August 29, 1933; one female, Kao 

 Soi Dao, January 22, 1934. 



Dr. W. L. Abbott collected four males and two females in Trang 

 (Lay Song Hong, September 7-15, 1896; Trang, January 25-February 

 2, 1897); one male and one female, Trengganu (Tanjong Dungun, 

 September 19, 1900 and Dungun River, September 1900); one female, 

 Endau River, east coast of Johore, July 13, 1901; and one male, 

 Rumpin River, Pahang, May 27, 1902. He describes the soft parts 

 as: Iris dark brown; bill pale green; orbital sldn pale greenish blue; 

 feet leaden blue. 



Apparently there are no material differences between specimens 

 from northern Peninsular Siam, southern Peninsular Siam, and the 

 Malay States and those from Sumatra. Southern birds have some- 

 what shorter tails. Specimens from Borneo represent a distinct 

 form, however, with appreciably shorter tails and the shadow barring 

 on the tails of the males less distinct and the throat and foreneck in 

 the females, as a rule, washed with huffy; the latter sex also is some- 

 w^hat darker on the back than the mainland form 



Seven males from Trang (4), Bandon (2), and Nakon Sritamarat (1) 

 measure: Wing, 114-118.5 (115.9); tail, 170-177 (172.6); culmen, 

 27-30.5 (28.9) mm. Four males from Patani, one from Trengganu, 

 and one from Pahang: Wing, 112-117.5 (114.6); tail, 160-177 (168.5); 

 culmen, 26-31 (28.5) mm. Five males from Sumatra: Wing, 110-119 

 (115.8); tail, 161-169 (166.2); culmen, 26.5-28 (27.3) mm. One male 

 from Tana Masa, Batu Islands: Wing, 121 ; tail, 182.5 ; culmen, 29 mm. 

 Ten males from Borneo: Wing, 110-119 (114.6); tail, 149.5-169.5 

 (159); culmen, 26-28 (27) mm. 



The male from the Batu Islands may represent an undescribed 

 form. It has a considerably longer wing and tail than any male 

 measured from elsewhere. 



