E. LÖNNBERG, BIRDS FROM TRANSBAICALIA AND MONGOLIA. 23 



3Ionticola saxatilis. 



Kiret cTo^ (n:o 106, 107) ^'Vo 1808. 



Length of wing 122 mm. There is no conspicuous 

 difference from European specimens. 



Turdus naumaniii Temninck. 



Kiran (f (n:o 91) ^-'5 1908. 



Taczanowskt writes about this species: »en Mongolie 

 elle n'est que de passage et en petit nombre»,^but it really 

 seems to breed in Northern Mongolia according to Mr. Bam- 

 berg's observations. 



Turdus obscurus (Gmeltn). 



Kiran $ (n:o 90) ^Vö 1908. 



This thrush is known to breed »aux environs du Baical 

 meridional».^ 



Turdus ruficollis Pallas. 



Tologojtu o^ (n:o 84) ^c 1908. 



This species was also found breeding in Northern Mongoha. 

 Chelidon rustica erythrogaster (Bodd.) 



Bura $ (n:o 143) '^75 1908. 



Caudal spöts pure white, lower parts cinnamon-rufous. 

 Length of \Wng 110 mm. 



Chelidon rustica tytleri (Jerd). 



Kjachta 9 (n:o 142) -^'5 1908. Dschargutschcji d" (n:o 144) ^g 1908. 



Caudal spöts suffused with rufous, lower parts dark 

 rufous. Length of wing 115 — 116 mm. 



The difference betw^een these two races seems to be 

 very slight, and in some cases it is very doubtful Avhich name 

 ought to be used. Ch. r. tytleri should perhaps be a more 



^ 1. c. p. 299. 



- Tacranowski quoting Godlewski 1. c. p. 308. 



