296 Lord Tweeddale on Birds from 



in the same area; and yet there seems no doubt that both 

 inhabit Tenasserim ; and an example of a young male ob- 

 tained at Tonghoo by Mr. W. Ramsay belongs to B. undu- 

 latus, while the remainder of a very large series from that 

 district consist of nothing but B. suhruficollis. There is 

 little or no difference in the general dimensions, although Mr. 

 Blyth considered that the body of B. imdulatus was heavier 

 than that of its ally. 



B. narcondami, Hume (Str. F. i. p. 411), as described, 

 seems to be another closely allied form. No mention is 

 made of lateral ridges on the mandibles. 



31. Carcineutes pulchellus. 



Dacelo pulchella, Horsf. t.c. p. 175, "Java" (1820). 

 Carcineutes pulchellus (Horsf.); Sharpe, Mon. Alced. t. 96. 

 This bird is not separable from Malaccan and Peguan ex- 

 amples. 



32. Halcyon pileata. 



Alcedo pileata, Bodd. Tab. PL Enl. p. 41 (1783). 



Alcedo atricapilla, Gm. ; Raffles, /. c. p. 293, " Sumatra."" 



33. Sauropatis chloris. 



Alcedo chloris, Bodd. Tabl. PI. Enl. p. 49 (1783). 



Alcedo chlorocephala, Gm., Raffles, /. c. p. 293, ^^ Sumatra." 



34. Pelargopsis fraseri, Sharpe, P. Z. S. 1870, p. 65, 

 "Java, Sumatra, Malacca;'^ Mon. Alced. t. 33, "Sumatra." 



Alcedo leucocephalus , Gm., Raffles, t. c. p. 293, " Sumatra." 

 The four examples obtained by Mr. Buxton most closely 

 resemble the Bornean form referred by Mr. Sharpe in his 

 monograph to P. leucocephala, the cap, however, being more 

 pronounced. They differ from the great majority of Malaccan 

 individuals with which I have made a comparison in wanting 

 the very dark distinct brown cap of that peninsular form. But, 

 in truth, this group of Kingfishers requires further study ; for 

 the variations in colouring of the cap, on which Mr. Sharpe 

 partly relies (P. Z. S. 1870, p. 62), do not always seem to offer, 

 as I once believed, stable characters when a large series of 

 individuals from different, or even similar, localities are 

 examined. 



