544 



MARaUIS OF TWEEDDALE ON THE 



[June 19, 



plate on the basal part of the sides of the mandible, by the casque 

 being narrower, by the general dimensions being less, and by the an- 

 terior three fourths of the mandible and about the anterior half of 

 the maxilla being white, and the rufous of the thigh-coverts, of the 

 head, nape, and throat being much darker. 



<S adult. Casque, posterior half of maxilla, rami of mandible, 

 and posterior part of gonys blood-red. Corrugated lateral plates of 

 mandible darker blood-red. Remainder of bill pale straw-white. 

 Feathers surrounding the eye and clothing the base of mandible, 

 chin, and gullet black. Head, nape, and upper part of breast, lower 

 throat, and thigh-coverts deep rufous maroon. Upper throat tawny. 

 Breast black. Interscapulars and wing-coverts ruddy brown. Upper 

 tail-coverts ferruginous. Under tail-coverts and vent light dingy 

 rust-colour. Quills black ; secondaries narrowly margined externally 

 with ferruginous, and tipped with rusty white. Rectrices ruddy 

 ochre. 



2 adult. Like male, as is the case in B. hydrocorax. 



$ juv. Differs chiefly by the casque not being so fully developed 

 anteriorly and not overhanging the true culmen, and iu its culmen 

 being dingy brown and grey-brown, with indications of red on the 

 casque and at base of mandible. The grooved lateral plates have not 

 appeared. The tarsus and feet in all appear to have been blood-red. 



In true B. hydrocorax slight indications of grooves are perceptible 

 on the walls of the base of the mandible ; but they are cut in the 

 substance of the mandible, and do not form part of an adhering 

 plate. 



\. 



17. Lanius lucionensis. 



Lanius lucionensis, Linn., S. N. i. p. 135, No, 10 (1766); Walden, 

 t. c. p. 171. no. 72, t. xxix. f. 1. 

 [No. 379, 6 . Zebu. Eyes hazel.] 



18. Artamus leucorhynus. 



Lanius leucorhynus, Linn., Mantissa Plant, p. 524, " Imarishia " 

 (1771) ; Walden, t. c. p. 174. no. 73. 



No' 370* 9 I ^^^^' Eyes brown. Stomachs had insects.] 



Not hitherto recorded from Zebu. Philippine examples of this 

 species exhibit two shghtly differing phases of dress, one in which 

 the upper plumage is of a light bluish and cinereous colour, the 



