July 29 (Reuters) - Canada's main stock index opened lower

on Wednesday, easing from the last session's from record high,

pressured by losses in Allied Gold ( AAUC ) after a proposed

C$5.5 billion ($3.90 billion) sale to a Chinese company

collapsed, while investors stayed on the sidelines ahead of the

Federal Reserve's interest rate decision later in the day.

The Toronto Stock Exchange's S&P/TSX Composite index

fell 0.4% to 35,595.40 shortly after the market opened.