Vol. xvi.] 58 



tlieir resi)ective distribution. From A. negleda of all ages 

 the Tarbag-atai Wren may at once be distinguished by 

 the distinct grey supercilium and ashy under-side, and 

 from the young A. negleda the present species differs in 

 the more smoky colour of the upper side, especially of the 

 head, the ashy sides of the head and under-side of the 

 body, the almost obsolete bars on the upper-back and 

 the uniform upper tail-coverts (in A. negleda these parts 

 are more distinctly barred). In A. nipaleiisitt the evebrow- 

 stripe is still more defined, but its colour is quite different, 

 being of a clear brown, and the under side is also devoid 

 of any grey colour. 



"Judging from analogy with all other Wrens, iho 

 adult plumage of the Tarbagatai Wren should be more 

 profusely barred and the grey tints more pronounced than 

 in the young. Hence the Tarbagatai Wren should be con- 

 sidered as an undoubtedly distinct form." 



Anorthura tarbagatatca, sj"). n. 



Juv. Supra obscure brunnea, pileo fusco, supercilio 

 cinereo, capitis lateribus et corpore subtus cinerascentibus, 

 alis caudaque intense nigro fasciatis. 



Hab. Dumeta jugi Saur (montium Tarbagatai pars 

 orientalis) . 



" Our journey to Tarbagatai has also added rich material 

 for the ekicidation of the rare pala'arctic Shrikes, like 

 L. raddei. With the diligent assistance of my companion, 

 Stud. Tchetverikoff, I collected 27 specimens of />. raddei 

 (7 adult males), 28 specimens of L. itifvscatiis (16 adult 

 males), etc., in all 152 specimens of the smaller Shrikes, not 

 including the common L. coUurio. The breeding grounds 

 of ]j. raddei were found at last on the southern slopes of 

 the western Altai and northern slopes of the Tarbagatai, 

 bordering the Zaissan-noor valley. In addition to this, I 

 had the whole material preserved in the Museum of the 

 St. Petersburg Academy (including the collection of the 

 late Dr. Sevcrtzov's), also Prof. Menzbier's collection, and 



