Okay: Using the typeglob for myArray allows me to point @myArray to the same memory location as $myHash{"tres"}.

This is probably the best solution because it allows me to treat the data in $myHash{"tres"} in such functions as join, split, and other array specific functions.

Using our is needed for getting around the use strict Perl pragma. Wrapping up everything in a block and using local keeps the scope of my redefinition of @myArray to that area of the program. Otherwise, if I use @myArray again somewhere else in the program, I could be changing $myHash{"tres"} without meaning to.

Thanks everybody for your help.