http://www.perlmonks.org?node_id=931442


in reply to Re: Variable declaration
in thread Variable declaration

$another_variable is a lexical variable...

Strictly speaking, $another_variable (as the OP has it) isn't a lexical variable.  my declares a lexical variable — no my, no lexical variable... (maybe you meant to say it should be a lexical variable?).

In the OP's case, both variables are package variables, it's just that strictures do not complain if you use the fully-qualified form, even if the variable is otherwise undeclared (the idea being that you know what you're doing if you spell it this way).