Large, seedless, bright orange citrus fruit with medium peel Named because the end opposite the stem looks like a belly button or navel

Medium sized, lightly seeded, bright orange citrus fruit with thin to medium peel

Small, bright orange, seedless, citrus fruit with thin, zipper skin

Small, bright orange, largely seedless, citrus fruit with red-orange flesh and thin, zipper skin

Small to large, bright orange, citrus fruit with thin to medium skin, easy to peel with red-orange flesh
Ellendales are seedless, while other varieties have light to heavy seeding.

A grapefruit / tangerine cross, Minneola Tangelos have deep orange-red skin and a pronounced neck. Skin is medium-thick, soft and easy to peel.
Flesh contains few seeds.

Large, round golden yellow skinned citrus fruit with very thick, soft peel -- interior flesh is white to pink to deep red with light seeding, depending upon the individual variety.

Small, bright yellow citrus fruit -- round with tapering ends, thin to medium skin and light to heavy seeding