1902.] NATURAL BCIKJSCj^S OF PHILADELf HIA. 6B5 



Garrulax bicolor Hartl. 



Garrulax bicolor " S. Miill." Hartlaub, Rev. Zool., 1844, p. 403. 

 Sumatra. 



One from the Padang highlands. 



Rhinociclila mitrata (Miill). 



Timalia mitrata S. Miiller, Tijdsclir, Nat. Gescli., 1835, p. 345, PI. 5, 

 tig. 3. Java. 



Six specimens from the Padang highlands. 

 Mixornis gularis (Raffl.). 



Motacilla gularis Raffles, Traus. Linn. Soc, XIII, p. 312, 1822. 

 Sumatra. 



Seven specimens from Lampong. 

 Mixornis erythroptera (Blyth). 



Timalia erythroptera Blyth, Jour. As. Soc. Bengal, XI, p. 794, 1842. 

 Malay region. 



One specimen from Lampong. 



Macronus ptilosus Jard. and Selby. 



Macronus ptilosus Jardine and Selby, 111. Ornitli., PI. 150, 1835. 

 Java and Sumatra. 



Three specimens from Lampong. 



Trichastoma buttikoferi Vorderm. 



2'richostoma Biittikoferi Vorderman, Nat. Tijdsclir. Ned. Indie, 

 1892, p. 230. Lampong, Sumatra (Ref. from Biittikofer). 



One specimen from the Lampong district which agrees exactly 

 with the description of Vorderman' s hitherto unique bird. The 

 present specimen (No. 39,204, Coll. Acad. Nat. Sci. Phila.) 

 measures: wing 70 mm., tail 54, tarsus 27, culraen 15. The 

 ' ' narrow black edgings ' ' to the feathers of the crown, while 

 clearly apparent, are really an optical effect produced by the 

 loose-vaned feathers lying over one another. 



In Mr. Biittikofer' s excellent paper in Notes from the Leyden 

 Museum, XVII, p. 65, 1895, I am unable to appreciate the impor- 

 tance of the character upon which he bases his primary division of 

 the genus Trichastoma (p. 87), i.e., the presence or absence of 

 ' ' concealed white longitudinal shaft streaks on the feathers of the 

 back and rump." 



The specimen above mentioned has the basal portion of the 

 shafts of these feathers white, yet it is placed in the section with 

 no white concealed streaks; while the type of T. celebeihse Strick- 

 land, which is now before me (No. 17,370, Coll. Acad. Nat. Sci. 



