or little-known Limicolse. 389 



the rivers Onon aud Argun; and, identifying it with the C. 

 mongolus of his former work, he enters into a very full descrip- 

 tion of it in his ' Zoographia/ altering his specific name to mon- 

 golicus [ut supra) . Dr. von Middendorff fell in with this bird 

 in large flocks about the 30th of June, at the mouth of the Uda, 

 on the Sea of Ochotsk. These flocks were observed up to the 

 21st of July, without his meeting with any paired or breeding 

 birds ; and on closer inspection it was found that they consisted 

 chiefly of females. As might be supposed from the date, they 

 were all in summer-plumage. In a freshly killed bird, the bill 

 was dark horn-colour, the iris dark yellow-brown, tarsus dull 

 yellowish -grey, the toes scarcely lighter than the iris, and the 

 soles a little darker. He further remarks that a wounded bird 

 swam aud dived well. 



Herr Radde states (/. c.) that he met with this handsome 

 species in the north-east corner of Mongolia as rarely as Pallas 

 did. It made its appearance at Tarei-nor in a flock of about 

 fifty, but not until the 12th of May. The birds at that time were 

 extremely wild, flying low along the shore, performing graceful 

 evolutions, without uttering any note. An old male killed from 

 this flock corresponded, in his opinion, very well with the bird 

 figured by Dr. von Middendorff. In no other part of the 

 south of Eastern Siberia did he find it. Dr. von Schrenck 

 describes this species from the Amoor with the forehead black. 



The most northern locality which I have hitherto noted for 

 ^. mongolicus is the Choris Peninsula in Behi-ings Straits. 

 Two specimens in summer plumage were procured there by 

 Capt. Moore, of H.M.S. 'Plover,' in 1849, and came into the 

 possession of Mr. Barrow, who recently presented them, with the 

 rest of his collection, to the New Museum at Oxford. Herr 

 Stoliczka [ut supra) met with this species in Thibet ; and, as I 

 have remarked in ti'eating of the preceding species. Dr. Leith 

 Adams {locc. citt.) has recorded it under the name of C. les- 

 £henaulti, as breeding on the banks of the Chimouraree Lake 

 in Ladakh. It is well known to naturalists in India as the 

 Lesser Sand- Plover. Mr. Hodgson included it in his catalogue 

 of the Birds of Nepal ; and Mr. Blyth states that it is commonly 

 brought into the Calcutta market and may be procured there 



