THE BIEDS OF MONGOLIA ETC. 809 



171. Cynchramus schceniclus, L. Sfrenatka kamishevaya. 



It is very scarce, and came under our notice only at Lake Dalai-nor and 

 the Hoang-ho valley. 



172. Cynchramus polaris, Midd. Strenatha poliarnaya, 



Middendorff^ Sibirisclie Eeise_, ii. part 2. pis. i.~iii. 



This specie S3 which differs from the preceding" one by its smaller size 

 and the dark ashy- coloured wing-coverts of the male, is only rarely to be 

 met with in Mongolia. On account of the scarcity of reed-thickets, it often 

 keeps in the high grass, and sometimes even at great distances from water. 



In S.E. Mongolia and the Hoang-ho valley w^e came across these birds 

 in winter, and observed them also in the reedy marshes of Tsaidam, but never 

 saw any at Koko-nor and in Kan-su. 



At Lake Hanka it appears early in March, and gets rather common 

 towards the end of the month. In April, however, only a few remain ; and 

 therefore, if C. polaris breeds at all in the Lake- Hanka basin, it is only in 

 very small numbers. 



Measurements : — 



Length. Width. Wing. Tail. Tarsus. Gape. 





m. 



m. 



m. 



m. 



m. 



]n. 



c?. Mongolia . 



. 5-5 



8 



2-82 



2-6 



0-67 



0-46 



2. Ussuri . . 



? 



? 



2-88 



2-46 



0-7 



0-43 



Urocynchramus, nov. gen. 



Rostrum Emberizcs, cauda Uragi ; alse obtusse^ remigibus 4ta, 5ta, et 6ta longissimis ; pedes 

 mediocres^ graciles ; ungues longi^, graciles^ leviter arcuati. 



173. Urocynchramus pylzowi, n. sp. Snigirevidnaya Strenatka 

 Pylzowa. (Plate LIV. vii.) 



Supra fulvus, nigricanti striatus ; gula, pectore^ abdomine^ genis^ superciliisque roseis ; tectricibus 



