ANADYR (1)  a gulf, and (2) a river, in the extreme N.E. of Siberia, in the Maritime Province . The gulf extends from Cape Chukchi on the north to Cape Navarin on the south, forming part of the Bering Sea . The river, taking its rise in the Stanovoi mountains as the Ivashki or Ivachno, about 67° N. lat. and 173° ANAESTHESIA 907 E. long., flows through the Chukchi country, at first south-west and then east, and enters the Gulf of Anadyr after a course of about 500 M . The country through which it passes is thinly populated, barren and desolate . For nine months of the year the ground is covered with snow . Reindeer, upon which the in-habitants subsist, are found in considerable numbers .