692 THE MARQUIS OF TWEEDDALE ON [NoV. 6, 



same species. If tbis is correct, C. affinis is an exception to 

 the rule of equalitj' in size which prevails among all the other known 

 Asiatic species of this genus. Moreover Bernstein has shown that 

 the two Javan birds differ in their anatomical structure {conf. Walden, 

 Trans. Zool. Soc. viii. pp. 56, GO). 



24. BUCEROS HYDROCORAX (66). 



[Monte Alban. S • iris red ; bill red ; nails dull black : orbital 

 skin yellow ; feet brownish red.] 



The whole of the back and shoulders of the two examples obtained 

 by Mr. Everett are smeared with an olive-yellow powder, seemingly 

 taken from the oil-glands at the root of the tail. Mr. Elliot 

 (Monogr. Bucerotidae, pt. ii.) countenances the erroneous statement 

 of the older authors that this Hornbill also inhabits the Moluccas. 



25. PeNELOPIDES MANILLiE (69). 



[Monte Alban. d" • iris crimson ; orbital skin and base of mandible 

 white ; bill dark brown ; the casque transparent horn-brown ; the 

 oblique bars on the maxilla ochre-yellow ; feet and nails dull black; 

 fruit in the gizzard.] 



Mr. Sharpe {t. c. p. 309) identifies a Cataguan example of this 

 genus in the British Museum with P. panini. If the identification 

 and locality are correct, both species inhabit the island of Luzon. 



26. Lanius nasutus (70). 



[San Mateo, a, 6 • iris orange-brown ; bill, legs, and nails black. 

 b, S • iris pale orange-brown ; bill, legs, claws black, c, $ : iris 

 warm brown ; bill and legs black.] 



The four examples sent by Mr. Everett are in mature plumage. 

 They are difficult to separate from the grey-backed form of India, 

 L. niffriceps. The only apparent diiference is, that in the Luzon bird 

 the rufous of the uropygium and upper-tail coverts is not so bright, 

 and that the grey on the back extends lower down. Dimensions 

 about equal. 



27. Lanius lucionensis (72). 



[San IVIateo. a, (S : iris dark-brown ; bill purplish leaden ; legs 

 dark bluish grey ; claws black, b, d • iris dark brown ; bill pur- 

 plish leaden ; legs bluish ; claws dark brown, c, $ : iris dark brown ; 

 legs dark lead ; claws black ; bill purplish brown.] 



The two examples marked $ have the cheek-stripe brown, not 

 black ; and the pectoral feathers and upper tail-coverts are edged 

 with brown. 



28. Artamus leucorhynus (73). 



[San Mateo, a, cS : iris dark brown; bill whitish blue, tipped 

 black; legs darkest lead -grey. b, d- iris chocolate; bill pale 

 bluish; feet and claws black, c, d: iris dark brown; bill pale- 

 bluish-grey, tipped black ; legs darkest lead-grey ; claws black, d, $ : 

 iris dark brown; bill pale whitish blue, tip black; legs dark leaden.] 



