Coast and Islands of South-eastern Siam. 733 



This specimen is niucli more rufous orange above than a 

 series of specimens from the Malay Peninsula, though it is 

 a[)proached in this respect In' one skin from Langkawi. The 

 irregular black markings on the breast are also more spare, 

 and tlie size is very slightly larger. 



The species does not appear to have been previously 

 recorded from east of the Salwin watershed. 



Dichoceros bicornis. 



Dichoceros bicornis (Linn.) ; Ogilvie-Grant, Cat. xvii. 

 1892, p. 355 ; Gyldenstolpe, p. 55. 



a,b. 2S- Koh Chang I., S.E. Siam. 7-10 Dec, 1914. 



c,d. Ic?, 1 ? . Koh Kra I., S.E. Siam. 17 Dec, 1914. 



" Male. Iris, inner ring silver-white, outer mottled with 

 brown ; orbital skin })ale brownish yellow. Bill, upper man- 

 dible gamboge, wa.>hed with red at the tip, back end of casque 

 blood-red ; lower mandible ivory-white, tip tinged with 

 yellow, base black. Feet olive, tarsi and soles washed with 

 yellowish. Culmen and top of casque washed with pale red. 



'■^Female. Similar to the male, but the base and front of the 

 casque and a line on the culmen reaching lialf way to the 

 tip black. 



" In life the casque and bill of this Hornbill are coated 

 with a bright yellow oil, and the neck and the white bars on 

 the wings are stained with the same secretion which, with 

 its colour, entirely disappears after death wherever exposed 

 to light. 



"' Pairs of small flocks of this bird were frequently seen 

 flying between the islands and the mainland— a journey 

 involving a sea-crossing of five or six miles. 



" The flesh of this species, like that of all eastern Horn- 

 bills, provides excellent food.^' — C. B. K. 



Ehytidoceros midulatus. 



Rlujtidoceros undulatus (Shaw) ; Ogilvie-Grant, Cat, xvii. 

 1892, p. 382. 



a. \S . Koh Kut I., S.E. Siam. 24 Dec, 1914. 

 b,c. 1 c?, 1 ? . Klong Yai, S.E. Siam. 7 Jan., 1915. 

 ^^ Male. Iris pale hazel-red; orbital skin dull fleshy pink. 



