Eggplant is originally from India and spread throughout the world, arriving in the New World with European colonization. In the Caribbean and parts of Central America, the preference is for a pink variety, sometimes with white striations. In Puerto Rico, this OP variety used is called rosita (Pink in Spanish). In the terminal market in Massachusetts, it is sometimes called berenjena dominicana (Dominican eggplant in Spanish).
For information on production and management of eggplant, refer to the The New England Vegetable Management Guide and click on "eggplant".
The variety Purple Rain is available from Burpee
The variety Zebra is available from Johnny's Selected Seeds