my %hash = (   # note parenthesis open here
    Mouse => {Index => 0, Value => 'Jerry'},
    Cat   => {Index => 1, Value => 'Tom'},
    Dog   => {Index => 2, Value => 'Spike'}
    );  # note parenthesis close here

##</code><code>##

HASH(0xfd578) {'Value'} <= Mouse 
HASH(0xfd494) {'Value'} <= Cat 
HASH(0x10e080) {'Value'} <= Dog