NO. 2255. 



CATALOGUE OF SIBERIAN BIRDS— RILEY. 



615 



30. TEREKIA CINEREA (Guldenstadt). 



Two males, 7 miles north of Nijni Kolmsk, June 2 and 9, 1915; 

 one female, Nijni Kolymsk, June 22, 1915. 

 These three specimens measure as follows : 



31. MACHETES PUGNAX (Linnaeus). 



Two males, 7 miles north of Nijni Kolymsk, May 26 and 30, 1915 ; 

 one female, 8 miles west of Verkhni Kolymsk, May 24, 1915; five 

 females, Sucharin Island, Kolyma Delta, July 7 and 9, 1915. 



Family CHARADRIIDAE. 



32.PLUVIALIS DOMINICUS FULVUS (GmeUn). 



One female, Nijni Kolymsk, September 1, 1914. 



33. CHARADRIUS MONGOLUS (Pallas). 



One female, Emma Harbor, July 22, 1914. 



34. MORINELLA INTERPRES INTERPRES (Linnaeus). 



Three immature specimens, Cape Wankarem, August 12, 1914. 

 Family ANATIDAE. 



35. MERGUS SERRATOR Linnaeus. 



One immature, not sexed, Kolyma Eiver, September 12, 1914. 



36. MARECA PENELOPE (Linnaeus). 



One male and one female, 7 miles north of Nijni Kolymsk, June 3, 

 1915 ; one immature male, Annuj River, September 5, 1914. 



37. NETTION CRECCA (Linnaeus). 



One male and one female, 7 miles north of Nijni Kolj-msk, June 

 3, 1915. 



38. NETTION FORMOSUM (Georgi). 



One male, Nijni Kolymsk, June 10, 1915; two males and one fe- 

 male, 7 miles north of Nijni Kolymsk, May 27 and 31, and June 3, 

 1915 ; and one female, Kolyma Delta, July 7, 1915. 



Mr. Amory secured a set of seven eggs, with incubation advanced 

 five or six days, on Sucharin Islands, Kolyma Delta, July 9, 1915. 

 The nest was on a " niggerhead " in open swamp, a hundred yards 



