Corrugated skin earmarks this vegetable; it varies in color from deep green to almost white (having been blanched on the vine). Typical specimens measure 4-5 inches long, although there are miniatures barely 2 inches and behemoths up to 10 inches in length.

In general, select firm, small melons in hopes that they will be crisp and less bitter. Larger, ripe melons - identified by bright red seeds inside - tend to be softer and more bitter.