Shellders are usually teases. They enjoy showing just enough of themselves and waggling their tongues enough to attract attention, and then clamping shut. Shellders resemble clams, and are rumored to be quite tasty. Shellders are hairless, and can close very tightly. If anything gets inside their crack, they reflexively squeeze it much harder than a creature their size would seem to be capable of. Shellders are known to like the taste of tail, and frequently lick, bite, or grasp the end of the Slowpokes. Shellders have long and useful tongues, which they can tie knots with.